APSXAFS/APS_XOR_Eval/20BMNotes/20BMNotes

<head> <meta name=Title content="Baseline Evaluation of XAFS Bending Magnet Beamlines"> <meta name=Keywords content=""> <meta http-equiv=Content-Type content="text/html; charset=macintosh"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 11"> <meta name=Originator content="Microsoft Word 11"> <link rel=File-List href="20BMBaseline_files/filelist.xml"> <link rel=Edit-Time-Data href="20BMBaseline_files/editdata.mso">  <title>Baseline Evaluation of XAFS Bending Magnet Beamlines</title> <!--[if gte mso 9]><xml>

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</head>

Baseline Evaluation of XAFS Bending Magnet Beamlines<o:p></o:p>

Experiments performed under “standard optimized operating conditions,” as recorded.<o:p></o:p>

</div>

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border-collapse:collapse;mso-padding-alt:0in 5.4pt 0in 5.4pt'> <tr style='height:15.9pt'>
- <td width=113 valign=top style='width:112.5pt;padding:0in 5.4pt 0in 5.4pt; height:15.9pt'> Steve Heald<o:p></o:p> </td>
</tr>
<tr style='height:15.95pt'>
- <td width=113 valign=top style='width:112.5pt;padding:0in 5.4pt 0in 5.4pt; height:15.95pt'> Matt Newville<o:p></o:p> </td>
</tr> <tr style='height:15.95pt'>
- <td width=113 valign=top style='width:112.5pt;padding:0in 5.4pt 0in 5.4pt; height:15.95pt'> Mali Balasubramanian<o:p></o:p>
 </td>
</tr> <tr style='height:15.95pt'>
- <td width=113 valign=top style='width:112.5pt;padding:0in 5.4pt 0in 5.4pt; height:15.95pt'> Julie Cross<o:p></o:p> </td>
</tr>

</table>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

<![if !supportLists]>o <![endif]>Rhodium coated harmonic rejection mirror, angle varies. See notes for specific test.<o:p></o:p>

<![if !supportLists]>o <![endif]>The SRS-570 current amplifier gain settings are recorded in the data file headers.<o:p></o:p>

<![if !supportLists]>o <![endif]>A 10% DC offset on the SRS-570 was automatically corrected by the data acquisition software.<o:p></o:p>

<![if !supportLists]>o <![endif]>The monochromator was detuned by 10% on the preslit detector. <o:p></o:p>

<![if !supportLists]>o <![endif]>Feedback stabilization was not used, although it is available. <o:p></o:p>

<![if !supportLists]>o <![endif]>The beam was unfocused, although vertical focusing is possible with the 20-BM HR Mirror. <o:p></o:p>

flowing in I0[15 cm] and IT[30 cm] ionization chambers.<o:p></o:p>

<![if !supportLists]>o <![endif]>Chambers operating at 600 VDC, except where noted.<o:p></o:p>

<![if !supportLists]>o <![endif]>7 GeV electron synchrotron operating in top-up mode, 100 mA (nominal).<o:p></o:p>

<![if !supportLists]>o <![endif]>I0 entrance slits 1.1 mm vertical x 10 mm horizontal.<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

N.B. Sector 21 is under construction, so this is probably a worst-case-scenario for noise (audible noise—ugh!!).<o:p></o:p>

ENERGY CALIBRATION: Experiment log<o:p></o:p>

</div>

XANES scans of metal foil reference standards collected over a large energy range without recalibrating the monochromator. <o:p></o:p>

<![if !supportLists]>o <![endif]>Metal foils from EXAFS Company (Joe Wong). Set provided by M. Newville.<o:p></o:p>

<![endif]>For the low energy range (V, Cr, Cu and Zn ), harmonic rejection mirror set to 5 mrad.<o:p></o:p>

<![if !supportLists]>o <![endif]>All XANES collected at 0.2 sec/point, unless otherwise noted.<o:p></o:p>

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 file name<o:p></o:p> </td> <td width="21%" rowspan=2 valign=top style='width:21.28%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> foil<o:p></o:p> </td> <td width="42%" colspan=2 valign=top style='width:42.56%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> edge energy<o:p></o:p>
 </td> <td width="16%" rowspan=2 valign=top style='width:16.18%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid blue .5pt;padding:0in 5.4pt 0in 5.4pt'> step size<o:p></o:p> </td>
</tr> <tr>
- <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> nominal†<o:p></o:p>
 </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> measured‡<o:p></o:p> </td>
</tr> <tr style='height:11.4pt'>
- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.4pt'> cufoil.0001<o:p></o:p>
 </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'> Cu<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'> 8980.48(2)<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'>
 8980.1<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'> 0.4 eV<o:p></o:p> </td>
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- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'>
 znfoil.0001<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> Zn<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 9660.76(3)<o:p></o:p>
 </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 9660.8<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 0.4<o:p></o:p> </td>
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<tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'> crfoil.0001<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> Cr<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'>
 5989.02(4)<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 5988.91<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 0.3<o:p></o:p>
 </td>
</tr> <tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'> vfoil.0001<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> V<o:p></o:p>
 </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 5463.76(5)<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 5464.04<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'>
 0.3<o:p></o:p> </td>
</tr>

</table>

Changed beamline settings to work at the high energy range. Changeover took about 1/2 hour, not including detector gas equilibration time.<o:p></o:p>

<![if !supportLists]>o <![endif]>For the high energy range (Mo, Ag), harmonic rejection mirror set to 2.3 mrad.<o:p></o:p>

<![if !supportLists]>o <![endif]>I0 entrance slits reduced to 0.8 vertical x 10 mm horizontal. <o:p></o:p>

<![if !supportLists]>o <![endif]>Switch to Ar in I0[15 cm] and IT[30 cm] at 600 VDC for Mo and Ag XANES.<o:p></o:p>

<![if !supportLists]>o <![endif]>Detector gases allowed to equilibrate while we all go for lunch, coffee, etc. around 12:45.<o:p></o:p>

<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;

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mso-padding-alt:0in 5.4pt 0in 5.4pt'> <tr>
- <td width="19%" rowspan=2 valign=top style='width:19.98%;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> file name<o:p></o:p> </td> <td width="21%" rowspan=2 valign=top style='width:21.28%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> foil<o:p></o:p> </td>
 <td width="42%" colspan=2 valign=top style='width:42.56%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> edge energy<o:p></o:p> </td> <td width="16%" rowspan=2 valign=top style='width:16.18%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid blue .5pt;padding:0in 5.4pt 0in 5.4pt'> step size<o:p></o:p> </td>
</tr> <tr>
- <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> nominal†<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> measured‡<o:p></o:p> </td>
</tr> <tr>
- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> mofoil.0001<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> Mo<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 20,000.36(2)<o:p></o:p>
 </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 20,001.9<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.8 eV<o:p></o:p> </td>
</tr>
<tr>
- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> agfoil.0001<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> Ag<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 25,515.6(3)<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> noisy, split peak<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.8 eV<o:p></o:p>
 </td>
</tr>

</table>

We see a double peak in the 1st derivative of agfoil.0001, and assume it is noise. <o:p></o:p>

<![if !supportLists]>o <![endif]>Increase counting time to 0.5 sec/point.<o:p></o:p>

<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;

border-collapse:collapse;border:none;mso-border-alt:solid windowtext .5pt;
mso-padding-alt:0in 5.4pt 0in 5.4pt'> <tr>
- <td width="19%" rowspan=2 valign=top style='width:19.98%;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> file name<o:p></o:p> </td> <td width="21%" rowspan=2 valign=top style='width:21.28%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> foil<o:p></o:p> </td>
 <td width="42%" colspan=2 valign=top style='width:42.56%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> edge energy<o:p></o:p> </td> <td width="16%" rowspan=2 valign=top style='width:16.18%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid blue .5pt;padding:0in 5.4pt 0in 5.4pt'> step size<o:p></o:p> </td>
</tr> <tr>
- <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> nominal†<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> measured‡<o:p></o:p> </td>
</tr> <tr>
- <td width="19%" valign=top style='width:19.98%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> agfoil.0002<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> Ag<o:p></o:p> </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> same<o:p></o:p>
 </td> <td width="21%" valign=top style='width:21.28%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 25,521§<o:p></o:p> </td> <td width="16%" valign=top style='width:16.18%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid blue .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.8 eV<o:p></o:p> </td>
</tr>

</table>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

†Rev. Sci. Instrum., 67 (1996) 686.<o:p></o:p>

§May need to apply a smoothing algorithm to the Ag XANES to get a decent derivative.<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

ENERGY CALIBRATION: V K data (Athena screen shots)<o:p></o:p>

</div>

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id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t"
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</v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> <o:lock v:ext="edit" aspectratio="t"/>

</v:shapetype><v:shape id="_x0000_i1033" type="#_x0000_t75" style='width:225pt;

height:180pt'> <v:imagedata src="20BMBaseline_files/image001.png" o:title="VEdge1"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image002.png" v:shapes="_x0000_i1033"><![endif]> <!--[if gte vml 1]><v:shape id="_x0000_i1034"

type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image003.png" o:title="VEdge3"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image004.png" v:shapes="_x0000_i1034"><![endif]><o:p></o:p>

ENERGY CALIBRATION: Cr K data<o:p></o:p>

</div>

<!--[if gte vml 1]><v:shape

id="_x0000_i1035" type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image005.png" o:title="CrEdge1"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image006.png" v:shapes="_x0000_i1035"><![endif]> <!--[if gte vml 1]><v:shape id="_x0000_i1036"

type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image007.png" o:title="CrEdge3"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image008.png" v:shapes="_x0000_i1036"><![endif]><o:p></o:p>

ENERGY CALIBRATION: Cu K data<o:p></o:p>

</div>

<!--[if gte vml 1]><v:shape

id="_x0000_i1037" type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image009.png" o:title="CuEdge1"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image010.png" v:shapes="_x0000_i1037"><![endif]> <!--[if gte vml 1]><v:shape id="_x0000_i1038"

type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image011.png" o:title="CuEdge3"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image012.png" v:shapes="_x0000_i1038"><![endif]><o:p></o:p>

ENERGY CALIBRATION: Zn K data<o:p></o:p>

</div>

<!--[if gte vml 1]><v:shape

id="_x0000_i1046" type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image013.png" o:title="ZnEdge1"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image014.png" v:shapes="_x0000_i1046"><![endif]> <!--[if gte vml 1]><v:shape id="_x0000_i1047"

type="#_x0000_t75" style='width:225pt;height:180pt'> <v:imagedata src="20BMBaseline_files/image015.png" o:title="ZnEdge3"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=180 src="20BMBaseline_files/image016.png" v:shapes="_x0000_i1047"><![endif]><o:p></o:p>

ENERGY CALIBRATION: Mo K data<o:p></o:p>

</div>

<!--[if gte vml 1]><v:shape id="_x0000_i1048" type="#_x0000_t75"

style='width:187pt;height:181pt'> <v:imagedata src="20BMBaseline_files/image017.gif" o:althref="20BMBaseline_files/image018.emf"
- o:title=""/>

</v:shape><![endif]--><![if !vml]><img width=187 height=181 src="20BMBaseline_files/image019.png" v:shapes="_x0000_i1048"><![endif]> From Steve Heald<o:p></o:p>

ENERGY CALIBRATION: Ag K data<o:p></o:p>

</div>

<!--[if gte vml 1]><v:shape

id="_x0000_i1049" type="#_x0000_t75" style='width:225pt;height:181pt'> <v:imagedata src="20BMBaseline_files/image020.png" o:title="AgEdge1"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=181 src="20BMBaseline_files/image021.png" v:shapes="_x0000_i1049"><![endif]> <!--[if gte vml 1]><v:shape id="_x0000_i1050"

type="#_x0000_t75" style='width:225pt;height:181pt'> <v:imagedata src="20BMBaseline_files/image022.png" o:title="AgEdge2"/>

</v:shape><![endif]--><![if !vml]><img width=225 height=181 src="20BMBaseline_files/image023.png" v:shapes="_x0000_i1050"><![endif]><o:p></o:p>

ENERGY CALIBRATION: Results<o:p></o:p>

</div>

<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;

border-collapse:collapse;border:none;mso-border-alt:solid windowtext .5pt;
mso-padding-alt:0in 5.4pt 0in 5.4pt'> <tr>
- <td width="19%" rowspan=2 valign=top style='width:19.1%;border:solid windowtext .5pt; border-bottom:solid black 1.5pt;padding:0in 5.4pt 0in 5.4pt'> file name<o:p></o:p> </td> <td width="20%" rowspan=2 valign=top style='width:20.14%;border-top:solid windowtext .5pt; border-left:none;border-bottom:solid black 1.5pt;border-right:solid windowtext .5pt; mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> foil<o:p></o:p>
 </td> <td width="60%" colspan=3 valign=top style='width:60.76%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> edge energy<o:p></o:p> </td>
</tr> <tr>
- <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid black 1.5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> nominal†<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid black 1.5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> measured‡<o:p></o:p> </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid black 1.5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> difference<o:p></o:p> </td>
</tr>
<tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.1%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid black 1.5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'> vfoil.0001<o:p></o:p> </td> <td width="20%" valign=top style='width:20.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid black 1.5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> V<o:p></o:p> </td> <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid black 1.5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'>
 5463.76(5)<o:p></o:p> </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid black 1.5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 5463.82<o:p></o:p> </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid black 1.5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 0.06<o:p></o:p>
 </td>
</tr> <tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.1%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'> crfoil.0001<o:p></o:p> </td> <td width="20%" valign=top style='width:20.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> Cr<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 5989.02(4)<o:p></o:p> </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 5989.49<o:p></o:p> </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'>
 0.47<o:p></o:p> </td>
</tr> <tr style='height:11.4pt'>
- <td width="19%" valign=top style='width:19.1%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.4pt'> cufoil.0001<o:p></o:p> </td> <td width="20%" valign=top style='width:20.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'>
 Cu<o:p></o:p> </td> <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'> 8980.48(2)<o:p></o:p> </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'> 8980.21<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.4pt'> -0.21<o:p></o:p> </td>
</tr> <tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.1%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'> znfoil.0001<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> Zn<o:p></o:p> </td> <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 9660.76(3)<o:p></o:p> </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'>
 9662.02<o:p></o:p> </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 1.26<o:p></o:p> </td>
</tr> <tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.1%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'>
 mofoil.0001§<o:p></o:p> </td> <td width="20%" valign=top style='width:20.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> Mo<o:p></o:p> </td> <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 20,000.36(2)<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 20002.05<o:p></o:p> </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 1.69<o:p></o:p> </td>
</tr>
<tr style='height:11.45pt'>
- <td width="19%" valign=top style='width:19.1%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt; height:11.45pt'> agfoil.0002§<o:p></o:p> </td> <td width="20%" valign=top style='width:20.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> Ag<o:p></o:p> </td> <td width="20%" valign=top style='width:20.38%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'>
 25,515.6(3)<o:p></o:p> </td> <td width="20%" valign=top style='width:20.06%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 25526.35<o:p></o:p> </td> <td width="20%" valign=top style='width:20.32%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt;height:11.45pt'> 0.75<o:p></o:p>
 </td>
</tr>

</table>

</div>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

‡Using first peak in first derivative of XANES scan, after application of Athena smoothing algorithm, with the exception of the Mo XANES, which was processed using a spline smoothing algorithm.<o:p></o:p>

§High energy edges measured with Ar in I0 and IT; detectors gases equilibrated ca. 1 hour, over lunch break.<o:p></o:p>

<!--[if gte vml 1]><v:shape

id="_x0000_i1051" type="#_x0000_t75" style='width:344pt;height:264pt'> <v:imagedata src="20BMBaseline_files/image024.gif" o:althref="20BMBaseline_files/image025.pct"
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ENERGY RESOLUTION: Experiment log<o:p></o:p>

</div>

Measure the full width at half maximum of the V2O5 pre-edge feature. <o:p></o:p>

<![if !supportLists]>o <![endif]>The sample is powder-on-tape prepared by Matt Newville. <o:p></o:p>

<![endif]>Harmonic Rejection Mirror set to 6 mRad.<o:p></o:p>

<![if !supportLists]>o <![endif]>Scan details: pre-edge –100 to –20 eV, Post-edge 30 eV to 8k (240 eV) for accurate normalization.<o:p></o:p>

<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;

border-collapse:collapse;border:none;mso-border-alt:solid windowtext .5pt;
mso-padding-alt:0in 5.4pt 0in 5.4pt'> <tr>
- <td width="25%" rowspan=2 valign=top style='width:25.0%;border:solid windowtext .5pt; border-right:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> filename<o:p></o:p> </td> <td width="26%" colspan=2 valign=top style='width:26.08%;border:solid black .5pt; border-left:none;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> slit size<o:p></o:p> </td> <td width="27%" rowspan=2 valign=top style='width:27.96%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> FWHM of feature<o:p></o:p>
 </td> <td width="20%" rowspan=2 valign=top style='width:20.98%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> step size<o:p></o:p> </td>
</tr> <tr>
- <td width="13%" valign=top style='width:13.36%;border-top:none;border-left: none;border-bottom:solid black .5pt;border-right:solid black .5pt;mso-border-top-alt: solid black .5pt;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> V<o:p></o:p>
 </td> <td width="12%" valign=top style='width:12.7%;border-top:none;border-left: none;border-bottom:solid black .5pt;border-right:solid black .5pt;mso-border-top-alt: solid black .5pt;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> H<o:p></o:p> </td>
</tr> <tr>
- <td width="25%" valign=top style='width:25.0%;border-top:none;border-left: solid windowtext .5pt;border-bottom:solid windowtext .5pt;border-right:solid black .5pt; mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> V2O5.0002<o:p></o:p>
 </td> <td width="13%" valign=top style='width:13.36%;border-top:none;border-left: none;border-bottom:solid black .5pt;border-right:solid black .5pt;mso-border-top-alt: solid black .5pt;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> 1.1 mm<o:p></o:p> </td> <td width="12%" valign=top style='width:12.7%;border-top:none;border-left: none;border-bottom:solid black .5pt;border-right:solid black .5pt;mso-border-top-alt: solid black .5pt;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> 6 mm<o:p></o:p> </td> <td width="27%" valign=top style='width:27.96%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid black .5pt; padding:0in 5.4pt 0in 5.4pt'>
 <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="20%" valign=top style='width:20.98%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.2 eV<o:p></o:p> </td>
</tr> <tr>
- <td width="25%" valign=top style='width:25.0%;border-top:none;border-left: solid windowtext .5pt;border-bottom:solid windowtext .5pt;border-right:solid black .5pt; mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 V205.0003<o:p></o:p> </td> <td width="13%" valign=top style='width:13.36%;border-top:none;border-left: none;border-bottom:solid black .5pt;border-right:solid black .5pt;mso-border-top-alt: solid black .5pt;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> 600 µm<o:p></o:p> </td> <td width="12%" valign=top style='width:12.7%;border-top:none;border-left: none;border-bottom:solid black .5pt;border-right:solid black .5pt;mso-border-top-alt: solid black .5pt;mso-border-left-alt:solid black .5pt;padding:0in 5.4pt 0in 5.4pt'> 6 mm<o:p></o:p>
 </td> <td width="27%" valign=top style='width:27.96%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid black .5pt; padding:0in 5.4pt 0in 5.4pt'> 1.865 +/- 0.018 eV<o:p></o:p> </td> <td width="20%" valign=top style='width:20.98%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.2 eV<o:p></o:p> </td>
</tr>

</table>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

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id="_x0000_i1052" type="#_x0000_t75" style='width:227pt;height:182pt'> <v:imagedata src="20BMBaseline_files/image027.png" o:title="V2O5_xanes"/>

</v:shape><![endif]--><![if !vml]><img width=227 height=182 src="20BMBaseline_files/image028.png" v:shapes="_x0000_i1052"><![endif]> <!--[if gte vml 1]><v:shape id="_x0000_i1053"

type="#_x0000_t75" style='width:227pt;height:182pt'> <v:imagedata src="20BMBaseline_files/image029.png" o:title="V2O5_pre-edge"/>

</v:shape><![endif]--><![if !vml]><img width=227 height=182 src="20BMBaseline_files/image030.png" v:shapes="_x0000_i1053"><![endif]><o:p></o:p>

<!--[if gte vml 1]><v:shape

id="_x0000_i1054" type="#_x0000_t75" style='width:284pt;height:217pt'> <v:imagedata src="20BMBaseline_files/image031.png" o:title="V2O5-MattIfeffit"/>

</v:shape><![endif]--><![if !vml]><img width=284 height=217 src="20BMBaseline_files/image032.jpg" v:shapes="_x0000_i1054"><![endif]>From Matt Newville<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

HARMONIC CONTENT: Experiment log<o:p></o:p>

</div>

Scan the energy around 6.66 keV through a Mo foil to look for emergent Mo XANES from the third harmonic.<o:p></o:p>

<![if !supportLists]>o <![endif]>Nominal edge position for Mo is 20,000 eV. Run a XANES scan with E0 = 6,6667. <o:p></o:p>

<![if !supportLists]>o <![endif]>Harmonic rejection mirror set to 8.5 mRad.<o:p></o:p>

<![if !supportLists]>o <![endif]>Limiting factor in HR cutoff is tilting the BM table. N2 in both chambers. <o:p></o:p>

<![if !supportLists]>o <![endif]>I0 is 15 cm, IT is 30 cm gas ionization at 600 VDC.<o:p></o:p>

<![if !supportLists]>o <![endif]>25 µm thick Mo foil from the PNC set of foil standards.<o:p></o:p>

<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;

border-collapse:collapse;border:none;mso-border-alt:solid windowtext .5pt;
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- <td width="20%" valign=top style='width:20.08%;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> filename<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.02%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> IT<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> I0<o:p></o:p> </td> <td width="25%" valign=top style='width:25.6%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 v/f counts<o:p></o:p> </td> <td width="14%" valign=top style='width:14.26%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> sec/pt<o:p></o:p> </td>
</tr> <tr>
- <td width="20%" valign=top style='width:20.08%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 moharmonic.0001<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 20 pA/v<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 10 nA/V<o:p></o:p>
 </td> <td width="25%" valign=top style='width:25.6%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="14%" valign=top style='width:14.26%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.2<o:p></o:p> </td>
</tr>
<tr>
- <td width="20%" valign=top style='width:20.08%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> moharmonic.0002<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> same<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 same<o:p></o:p> </td> <td width="25%" valign=top style='width:25.6%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 100 (basically noise)<o:p></o:p> </td> <td width="14%" valign=top style='width:14.26%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1.0<o:p></o:p>
 </td>
</tr> <tr>
- <td width="100%" colspan=5 valign=top style='width:100.0%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> monochromator fully tuned, rejection only by HR mirror<o:p></o:p> </td>
</tr> <tr>
- <td width="20%" valign=top style='width:20.08%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> moharmonic.0003<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> same<o:p></o:p> </td> <td width="20%" valign=top style='width:20.02%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> same<o:p></o:p>
 </td> <td width="25%" valign=top style='width:25.6%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 800 <o:p></o:p> </td> <td width="14%" valign=top style='width:14.26%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1.0<o:p></o:p> </td>
</tr>

</table>

†Crude estimate at beamline is 2-3 x 10^4 harmonic photons/sec.<o:p></o:p>

‡Crude estimate at beamline is 10^3 harmonic photons/sec.<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

BASE NOISE LEVEL: Experiment Log<o:p></o:p>

</div>

Record at 10 keV for 3 minutes. Record with beam off for 3 minutes. Record data with knife edge 1/2 way through beam, Horizontal and Vertical, for 3 minutes.<o:p></o:p>

<![if !supportLists]>o <![endif]>Harmonic rejection mirror set to 5 mRad. on the HR mirror. <o:p></o:p>

<![if !supportLists]>o <![endif]>Return to standard optimized settings: <o:p></o:p>

<![if !supportLists]>o <![endif]>Monochromator detuned by 10% on pre-slit detector. <o:p></o:p>

<![endif]>Slit size H x R = 6 mm x 1.1 mm (est.) <o:p></o:p>

Dummy scan for 3 minutes at 1 sec/pt (180 points). Estimated run time for scan is 3 min. 18 seconds. Measure offsets. Gains are I0 20 nA/V; IT 10 nA/V.<o:p></o:p>

<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;

border-collapse:collapse;border:none;mso-border-alt:solid windowtext .5pt;
mso-padding-alt:0in 5.4pt 0in 5.4pt'> <tr>
- <td width="22%" valign=top style='width:22.32%;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> filename<o:p></o:p> </td> <td width="32%" valign=top style='width:32.34%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 condition<o:p></o:p> </td> <td width="20%" valign=top style='width:20.4%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> p-p on µ<o:p></o:p> </td> <td width="24%" valign=top style='width:24.94%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> topoff event<o:p></o:p>
 </td>
</tr> <tr>
- <td width="22%" valign=top style='width:22.32%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> beam_noise.0001<o:p></o:p> </td> <td width="32%" valign=top style='width:32.34%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 10 keV<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.4%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 2 x 10^-4<o:p></o:p> </td> <td width="24%" valign=top style='width:24.94%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.5%<o:p></o:p> </td>
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<tr>
- <td width="22%" valign=top style='width:22.32%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> beam_noise.0002<o:p></o:p> </td> <td width="32%" valign=top style='width:32.34%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> beam off<o:p></o:p> </td> <td width="20%" valign=top style='width:20.4%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="24%" valign=top style='width:24.94%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td>
</tr> <tr>
- <td width="22%" valign=top style='width:22.32%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> beam_noise.0003<o:p></o:p>
 </td> <td width="32%" valign=top style='width:32.34%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1/2 blocked Vert.<o:p></o:p> </td> <td width="20%" valign=top style='width:20.4%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="24%" valign=top style='width:24.94%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td>
</tr>

</table>

We took the harmonic rejection mirror back to zero angle to double check the angle calibration. The mirror not have been correctly aligned for the previous measurements, and we may want to repeat HARMONIC CONTENT evaluation.<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

BREAK FOR LUNCH 12:43.<o:p></o:p>

Construction noise seemed to settle down around 3pm. At least most of the grinding, drilling, and hammering has stopped.<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

DATA QUALITY: Experiment log<o:p></o:p>

</div>

Transmission EXAFS of solutions with 0.1 edge step in ca. 2 absorption lengths of water. Cover a range of energies (Cl, Zn, Cd).<o:p></o:p>

Solutions and transmission cells prepared by Matt Newville using dilution calculations by Bruce Ravel.<o:p></o:p>

zinc nitrate <o:p></o:p>

445 mg Zn(NO3)2•6H2O (Alfa #22403)<o:p></o:p>

was dissolved into ≈40 ml H2O (Fischer W2-4 DIVF water) and stirred for 5 minutes.<o:p></o:p>

The solution was then brought to 50 ml.<o:p></o:p>

cadmium nitrate<o:p></o:p>

626 mg Cd(NO3)2•6H2O (Alfa #21853)<o:p></o:p>

was dissolved in ≈25 ml H2O (Fischer W2-4 DIVF water) and stirred for 5 minutes.<o:p></o:p>

The solution was then brought to 30 ml.<o:p></o:p>

Beamline 10% detuned on pre-slit; HR mirror at 5 mRad; N2 in I0 (15 cm) and IT (30 cm) at 600 VDC.<o:p></o:p>

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- <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> filename<o:p></o:p> </td>
 <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> slit size<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> edge step height<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> <o:p></o:p> </td>
</tr> <tr>
- <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> znsolution.0001<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.2 sec/pt<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1.1 mm x 6 mm<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 0.12<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td>
</tr> <tr>
- <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 znsolution.0002<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1 sec/pt<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1.1 mm x 10 mm<o:p></o:p>
 </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> ca. 10^-3 noise<o:p></o:p> </td>
</tr>
<tr>
- <td width="20%" valign=top style='width:20.0%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> znsolution.0003<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> repeat<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 repeat<o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width="20%" valign=top style='width:20.0%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td>
</tr>

</table>

Beamline Ar in I0 (15 cm) and IT (30 cm) at 600 VDC; HR mirror to 2.3 mRad; close slits to 800 µm x 10,000 µm; beam height changed with large energy change (from 10 keV to 20 keV); The flux seems too low, so SH takes the HR mirror back to zero angle and adjusts height to center in beam. It was off by 800 µm, which is the same as the entrance slit height, so this error had a huge effect on the flux. Nominal Cd edge position is 26,713 eV.<o:p></o:p>

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- <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> I0<o:p></o:p> </td>
 <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> IT<o:p></o:p> </td>
</tr> <tr>
- <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> 50 nA/V<o:p></o:p> </td>
 <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 50 nA/V<o:p></o:p> </td>
</tr>

</table>

EXAFS scan parameters saved as JPEG.<o:p></o:p>

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- <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> filename<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> slit size<o:p></o:p>
 </td> <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> edge step height<o:p></o:p> </td> <td width=89 valign=top style='width:88.6pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> <o:p></o:p> </td>
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<tr>
- <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> cdsolution.0002<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1 sec/pt<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 0.8 mm x 10 mm<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 0.14<o:p></o:p> </td> <td width=89 valign=top style='width:88.6pt;border-top:none;border-left:none; border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td>
</tr> <tr>
- <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> cdsolution.0003<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> repeat<o:p></o:p> </td>
 <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> repeat<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width=89 valign=top style='width:88.6pt;border-top:none;border-left:none; border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p>
 </td>
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</table>

Cd and Zn have comparable flux, noise, and reproducibiliby.<o:p></o:p>

(6) FLUX at 10 keV: Measure on all beamlines with a common detector/amplifier combination.<o:p></o:p>

ADC 10 cm detector, 1000 VDC, N2 stp, slit size is 1 x 10 mm, 4.1% absorption<o:p></o:p>

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- <td width=55 valign=top style='width:54.95pt;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> detuning<o:p></o:p> </td> <td width=58 valign=top style='width:58.45pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td> <td width=64 valign=top style='width:63.7pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> HR mirror<o:p></o:p>
 </td> <td width=89 valign=top style='width:88.55pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> gain<o:p></o:p> </td> <td width=136 valign=top style='width:135.75pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> current<o:p></o:p> </td> <td width=41 valign=top style='width:41.4pt;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 flux†<o:p></o:p> </td>
</tr> <tr>
- <td width=55 valign=top style='width:54.95pt;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> 10%<o:p></o:p> </td> <td width=58 valign=top style='width:58.45pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 1000 VDC<o:p></o:p> </td> <td width=64 valign=top style='width:63.7pt;border-top:none;border-left:none; border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 5 mRad<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 10 nA/V<o:p></o:p>
 </td> <td width=136 valign=top style='width:135.75pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 2.309 V (offset corrected)<o:p></o:p> </td> <td width=41 valign=top style='width:41.4pt;border-top:none;border-left:none; border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1.1e10<o:p></o:p> </td>
</tr>
<tr>
- <td width=55 valign=top style='width:54.95pt;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> same<o:p></o:p> </td> <td width=58 valign=top style='width:58.45pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 500 VDC<o:p></o:p> </td> <td width=64 valign=top style='width:63.7pt;border-top:none;border-left:none; border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 same<o:p></o:p> </td> <td width=89 valign=top style='width:88.55pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> same<o:p></o:p> </td> <td width=136 valign=top style='width:135.75pt;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 2.296 V<o:p></o:p>
 </td> <td width=41 valign=top style='width:41.4pt;border-top:none;border-left:none; border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> <![if !supportEmptyParas]> <![endif]><o:p></o:p> </td>
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</table>

†calculated using PNC web programs<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

DETECTOR LINEARITY: Experiment Log<o:p></o:p>

</div>

Move a knife edge or aperture across the incident beam and monitor the I0/IT ratio. <o:p></o:p>

Apparently there are several different types of linearity tests one could perform. We debate the merits and applicability, and decide to perform a slit scan: scan a narrow slit across the beam horizontally, to see how uniform the detector is from side to side.<o:p></o:p>

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- <td width="23%" rowspan=2 valign=top style='width:23.58%;border:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> filename<o:p></o:p> </td> <td width="19%" colspan=2 valign=top style='width:19.3%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> beam size<o:p></o:p> </td>
 <td width="12%" rowspan=2 valign=top style='width:12.2%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> IO<o:p></o:p> </td> <td width="13%" rowspan=2 valign=top style='width:13.2%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> IT<o:p></o:p> </td> <td width="31%" rowspan=2 valign=top style='width:31.7%;border:solid windowtext .5pt; border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> comments<o:p></o:p>
 </td>
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- <td width="10%" valign=top style='width:10.16%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> H<o:p></o:p> </td> <td width="9%" valign=top style='width:9.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> V<o:p></o:p>
 </td>
</tr> <tr>
- <td width="23%" valign=top style='width:23.58%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'> HSlitScan.0003<o:p></o:p> </td> <td width="10%" valign=top style='width:10.16%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1 mm<o:p></o:p>
 </td> <td width="9%" valign=top style='width:9.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1 mm<o:p></o:p> </td> <td width="12%" valign=top style='width:12.2%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 2 nA/V<o:p></o:p> </td> <td width="13%" valign=top style='width:13.2%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 2 nA/V<o:p></o:p> </td> <td width="31%" valign=top style='width:31.7%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> check uniformity of the ionization chambers from side to side<o:p></o:p> </td>
</tr> <tr>
- <td width="23%" valign=top style='width:23.58%;border:solid windowtext .5pt; border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0in 5.4pt 0in 5.4pt'>
 attenuatorscan.0001<o:p></o:p> </td> <td width="10%" valign=top style='width:10.16%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 1 mm<o:p></o:p> </td> <td width="9%" valign=top style='width:9.14%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 10 mm<o:p></o:p>
 </td> <td width="12%" valign=top style='width:12.2%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 20 nA/V<o:p></o:p> </td> <td width="13%" valign=top style='width:13.2%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'> 20 nA/V<o:p></o:p> </td> <td width="31%" valign=top style='width:31.7%;border-top:none;border-left: none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt; mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt; padding:0in 5.4pt 0in 5.4pt'>
 Also used IRef at 10 nA/V. Dummy scan, with manually inserted layers of 12.5 µm Mo foil<o:p></o:p> </td>
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Monochromator detuned 10% on pre-slit; HR mirror at 5 mRad; N2 in I0[15 cm] and IT[30 cm]<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

BEAMLINE OPERATIONS<o:p></o:p>

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Practical limits on energy range for EXAFS (highest and lowest measured spectra)<o:p></o:p>

Chlorine, but requires major modifications to “standard” configuration to reduce attenuation.<o:p></o:p>

Ease of changing energy<o:p></o:p>

Large energy changes, such as from 10 keV (Zn) to 25 keV (Cd) required some manual adjustment of the optics, including the HR mirror zero, HR mirror tilt (normal, since cutoff energy is different), detuning, slit size (to match HR mirror acceptance), gains, detector gases. <o:p></o:p>

Availability of detectors<o:p></o:p>

Availability of special sample environments (high/low temp., vacuum, pressure, etc.)<o:p></o:p>

Ease of integrating APS Pool Detectors and Equipment<o:p></o:p>

Data collection software<o:p></o:p>

On-line data processing and analysis<o:p></o:p>

Sources of systematic errors (random electronic noise, known monochromator glitches, etc.)<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

SOFTWARE CAPABILITIES (need to make a table for this)<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

maximum number of regions for energy scans<o:p></o:p>

k-space scanning<o:p></o:p>

k-weighted integration time<o:p></o:p>

automatic offset correction<o:p></o:p>

macro capabilities<o:p></o:p>

plotting capabilities<o:p></o:p>

on-line analysis capabilities<o:p></o:p>

example of data file header (what information is automatically recorded)<o:p></o:p>

<![if !supportEmptyParas]> <![endif]><o:p></o:p>

9.1 % absorption at Cd, 15 cm Ar. estimated flux is 8x10^9 above the edge.<o:p></o:p>

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APSXAFS/APS_XOR_Eval/20BMNotes/20BMNotes (last edited 2009-10-09 19:51:19 by localhost)