Changeset 2390 for Tutorials/TOF Single Crystal Refinement
- Timestamp:
- Jul 28, 2016 2:18:10 PM (7 years ago)
- Location:
- Tutorials/TOF Single Crystal Refinement
- Files:
-
- 2 edited
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Tutorials/TOF Single Crystal Refinement/TOF single crystal refinement in GSAS.htm
r1865 r2390 25 25 <o:Author>vondreele</o:Author> 26 26 <o:LastAuthor>Von Dreele</o:LastAuthor> 27 <o:Revision>1 1</o:Revision>28 <o:TotalTime>103 0</o:TotalTime>27 <o:Revision>12</o:Revision> 28 <o:TotalTime>1031</o:TotalTime> 29 29 <o:Created>2015-02-17T16:18:00Z</o:Created> 30 <o:LastSaved>201 5-05-22T18:02:00Z</o:LastSaved>30 <o:LastSaved>2016-07-28T18:57:00Z</o:LastSaved> 31 31 <o:Pages>1</o:Pages> 32 <o:Words>206 2</o:Words>33 <o:Characters>1175 7</o:Characters>32 <o:Words>2061</o:Words> 33 <o:Characters>11753</o:Characters> 34 34 <o:Company>Argonne National Laboratory</o:Company> 35 35 <o:Lines>97</o:Lines> 36 36 <o:Paragraphs>27</o:Paragraphs> 37 <o:CharactersWithSpaces>137 92</o:CharactersWithSpaces>38 <o:Version>1 5.00</o:Version>37 <o:CharactersWithSpaces>13787</o:CharactersWithSpaces> 38 <o:Version>16.00</o:Version> 39 39 </o:DocumentProperties> 40 40 </xml><![endif]--> 41 41 <link rel=dataStoreItem 42 href="TOF%20single%20crystal%20refinement%20in%20GSAS_files/item00 46.xml"43 target="TOF%20single%20crystal%20refinement%20in%20GSAS_files/props0 47.xml">42 href="TOF%20single%20crystal%20refinement%20in%20GSAS_files/item0056.xml" 43 target="TOF%20single%20crystal%20refinement%20in%20GSAS_files/props057.xml"> 44 44 <link rel=themeData 45 45 href="TOF%20single%20crystal%20refinement%20in%20GSAS_files/themedata.thmx"> … … 650 650 {font-family:"Cambria Math"; 651 651 panose-1:2 4 5 3 5 4 6 3 2 4; 652 mso-font-charset: 0;652 mso-font-charset:1; 653 653 mso-generic-font-family:roman; 654 654 mso-font-pitch:variable; 655 mso-font-signature: -536870145 1107305727 0 0 4150;}655 mso-font-signature:0 0 0 0 0 0;} 656 656 @font-face 657 657 {font-family:Calibri; … … 963 963 mso-hansi-font-family:"Courier New"; 964 964 mso-bidi-font-family:"Courier New";} 965 p.msonormal0, li.msonormal0, div.msonormal0 966 {mso-style-name:msonormal; 967 mso-style-noshow:yes; 968 mso-style-priority:99; 969 mso-style-unhide:no; 970 mso-margin-top-alt:auto; 971 margin-right:0in; 972 mso-margin-bottom-alt:auto; 973 margin-left:0in; 974 mso-pagination:widow-orphan; 975 font-size:12.0pt; 976 font-family:"Times New Roman",serif; 977 mso-fareast-font-family:"Times New Roman"; 978 mso-fareast-theme-font:minor-fareast;} 965 979 span.TitleChar 966 980 {mso-style-name:"Title Char"; … … 1215 1229 1216 1230 <p class=MsoNormal>In these exercises you will use GSAS-II to refine the 1217 structure of sapphire (really corundum, Al<sub>2</sub>O<sub>3</sub>) from 1218 single crystal diffraction data collected at the SNS on the TOPAZ instrument at 1219 room temperature. The data consists of a suite of exposures with the crystal in 1220 31different orientations all within a single data file. Note that menu entries1231 structure of sapphire (really corundum, Al<sub>2</sub>O<sub>3</sub>) from single 1232 crystal diffraction data collected at the SNS on the TOPAZ instrument at room 1233 temperature. The data consists of a suite of exposures with the crystal in 31 1234 different orientations all within a single data file. Note that menu entries 1221 1235 and user input are shown in bold face below as <b style='mso-bidi-font-weight: 1222 1236 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: … … 1271 1285 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 1272 1286 <o:lock v:ext="edit" aspectratio="t"/> 1273 </v:shapetype><v:shape id=" _x0000_i1050" type="#_x0000_t75" style='width:640.5pt;1274 height:375pt;visibility:visible;mso-wrap-style:square'>1287 </v:shapetype><v:shape id="Picture_x0020_1" o:spid="_x0000_i1050" type="#_x0000_t75" 1288 style='width:640.5pt;height:375pt;visibility:visible;mso-wrap-style:square'> 1275 1289 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image001.png" 1276 1290 o:title=""/> 1277 1291 </v:shape><![endif]--><![if !vml]><img width=854 height=500 1278 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 02.gif"1279 v:shapes=" _x0000_i1050"><![endif]></span></p>1292 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image051.gif" 1293 v:shapes="Picture_x0020_1"><![endif]></span></p> 1280 1294 1281 1295 <p class=MsoListParagraph><o:p> </o:p></p> … … 1301 1315 o:title=""/> 1302 1316 </v:shape><![endif]--><![if !vml]><img width=650 height=500 1303 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 04.gif"1317 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image052.gif" 1304 1318 v:shapes="Picture_x0020_29"><![endif]></span></p> 1305 1319 … … 1311 1325 <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1312 1326 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>4.7613</span></b> 1313 for <span class=GramE>a and</span><b style='mso-bidi-font-weight:normal'><span1327 for <span class=GramE>a</span> and <b style='mso-bidi-font-weight:normal'><span 1314 1328 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1315 1329 mso-hansi-theme-font:minor-latin'>12.9846</span></b> for c; a new cell volume … … 1334 1348 o:title=""/> 1335 1349 </v:shape><![endif]--><![if !vml]><img width=700 height=300 1336 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 06.gif"1350 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image053.gif" 1337 1351 v:shapes="Picture_x0020_31"><![endif]></span></p> 1338 1352 … … 1353 1367 o:title=""/> 1354 1368 </v:shape><![endif]--><![if !vml]><img width=700 height=300 1355 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 08.gif"1369 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image054.gif" 1356 1370 v:shapes="Picture_x0020_32"><![endif]></span></p> 1357 1371 … … 1359 1373 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>6.<span 1360 1374 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Change 1361 the <span class=GramE>Al(</span>z) to <b style='mso-bidi-font-weight:normal'><span 1362 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1363 mso-hansi-theme-font:minor-latin'>0. 352</span></b>, the O(x) to <b 1364 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1365 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>-0.306</span></b> 1366 and the <span class=GramE>O(</span>z) to <b style='mso-bidi-font-weight:normal'><span 1367 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1368 mso-hansi-theme-font:minor-latin'>Œ</span></b> (it will be changed to 0.2500). 1369 Site symmetries and multiplicities will automatically change for these 1370 positions.</p> 1375 the Al(z) to <b style='mso-bidi-font-weight:normal'><span style='font-family: 1376 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1377 minor-latin'>0. 352</span></b>, the O(x) to <b style='mso-bidi-font-weight: 1378 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1379 minor-latin;mso-hansi-theme-font:minor-latin'>-0.306</span></b> and the O(z) to 1380 <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1381 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Œ</span></b> 1382 (it will be changed to 0.2500). Site symmetries and multiplicities will 1383 automatically change for these positions.</p> 1371 1384 1372 1385 <p class=MsoListParagraph><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1376 1389 o:title=""/> 1377 1390 </v:shape><![endif]--><![if !vml]><img width=700 height=300 1378 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 10.gif"1391 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image055.gif" 1379 1392 v:shapes="Picture_x0020_34"><![endif]></span></p> 1380 1393 … … 1408 1421 will appear. Change the directory to the location of this exercise (<b 1409 1422 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1410 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'> exercises/TOF1411 Single Crystal Refinement</span></b> yours might be different), select <span1423 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>TOF Single 1424 Crystal Refinement/data</span></b> yours might be different), select <span 1412 1425 class=SpellE><b style='mso-bidi-font-weight:normal'><span style='font-family: 1413 1426 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: … … 1416 1429 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Open</span></b>. 1417 1430 A popup will show a bit of the file and ask if you want to read this file; 1418 press <span class=GramE><b style='mso-bidi-font-weight:normal'><span 1419 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1420 mso-hansi-theme-font:minor-latin'>Yes</span></b></span>. Another popup will 1421 appear with a suggested name for the data; this will be used for the GSAS-II 1422 Data tree. Press <b style='mso-bidi-font-weight:normal'><span style='font-family: 1423 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1424 minor-latin'>OK</span></b>. The console will show messages as each histogram is 1425 read; when done a new popup will appear</p> 1431 press <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1432 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Yes</span></b>. 1433 Another popup will appear with a suggested name for the data; this will be used 1434 for the GSAS-II Data tree. Press <b style='mso-bidi-font-weight:normal'><span 1435 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1436 mso-hansi-theme-font:minor-latin'>OK</span></b>. The console will show messages 1437 as each histogram is read; when done a new popup will appear</p> 1426 1438 1427 1439 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1431 1443 o:title=""/> 1432 1444 </v:shape><![endif]--><![if !vml]><img width=320 height=310 1433 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 12.gif"1445 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image056.gif" 1434 1446 v:shapes="Picture_x0020_35"><![endif]></span></p> 1435 1447 … … 1451 1463 o:title=""/> 1452 1464 </v:shape><![endif]--><![if !vml]><img width=400 height=250 1453 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 14.gif"1465 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image057.gif" 1454 1466 v:shapes="Picture_x0020_36"><![endif]></span></p> 1455 1467 1456 <p class=MsoNormal>The plot window shows a not very interesting 2D view of the 1457 l =0 layer of reciprocal space for the last data set. If you select the 1<sup>st</sup>1468 <p class=MsoNormal>The plot window shows a not very interesting 2D view of the l=0 1469 layer of reciprocal space for the last data set. If you select the 1<sup>st</sup> 1458 1470 HKLF entry (<b style='mso-bidi-font-weight:normal'><span style='font-family: 1459 1471 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: … … 1467 1479 o:title=""/> 1468 1480 </v:shape><![endif]--><![if !vml]><img width=700 height=600 1469 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 16.gif"1481 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image058.gif" 1470 1482 v:shapes="Picture_x0020_10"><![endif]></span></p> 1471 1483 1472 1484 <p class=MsoNormal>Green circles are drawn representing the magnitude of 4 1473 1485 structure factors on the l=0 layer. The positions are strictly on a square 1474 grid; you can tab through the layers on l with <span class=GramE>the <b1475 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1476 m so-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>+/-</span></b></span>1477 keys. Find other commands in the K box in the tools part of the plot. If you 1478 s elect <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;1486 grid; you can tab through the layers on l with the <b style='mso-bidi-font-weight: 1487 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1488 minor-latin;mso-hansi-theme-font:minor-latin'>+/-</span></b> keys. Find other 1489 commands in the K box in the tools part of the plot. If you select <b 1490 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1479 1491 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Commands/Plot 1480 1492 3D HKLs</span></b> from the data window youll see a 3D view of this reflection … … 1487 1499 1488 1500 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1489 id=" Picture_x0020_11" o:spid="_x0000_i1042" type="#_x0000_t75" style='width:363pt;1490 height:311.25pt;visibility:visible;mso-wrap-style:square'>1501 id="_x0000_i1042" type="#_x0000_t75" style='width:363pt;height:311.25pt; 1502 visibility:visible;mso-wrap-style:square'> 1491 1503 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image017.png" 1492 1504 o:title="" croptop="11818f" cropbottom="16324f" cropleft="40001f" 1493 1505 cropright="10518f"/> 1494 1506 </v:shape><![endif]--><![if !vml]><img width=484 height=415 1495 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 18.jpg"1496 v:shapes=" Picture_x0020_11"><![endif]></span></p>1507 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image059.jpg" 1508 v:shapes="_x0000_i1042"><![endif]></span></p> 1497 1509 1498 1510 <p class=MsoNormal>Here the plot has the correct representation for reciprocal 1499 1511 space as sampled by this crystal orientation on TOPAZ. The <b style='mso-bidi-font-weight: 1500 1512 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1501 minor-latin;mso-hansi-theme-font:minor-latin'>save as/key</span></b> commands 1502 give you control on the appearance of the plot; the plot responds to 1503 zoom/rotate commands from the mouse. Left mouse button to rotate, right mouse 1504 button to translate, center wheel to rotate about view direction and the wheel 1505 to zoom in or out. One cursor is the view point and the other is the 000 1506 reciprocal spaceorigin. </p>1513 minor-latin;mso-hansi-theme-font:minor-latin'>save as/key</span></b> commands give 1514 you control on the appearance of the plot; the plot responds to zoom/rotate 1515 commands from the mouse. Left mouse button to rotate, right mouse button to 1516 translate, center wheel to rotate about view direction and the wheel to zoom in 1517 or out. One cursor is the view point and the other is the 000 reciprocal space 1518 origin. </p> 1507 1519 1508 1520 <p class=MsoNormal>If you want to see the entire data set plotted together do <b … … 1520 1532 1521 1533 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1522 id=" Picture_x0020_12" o:spid="_x0000_i1041" type="#_x0000_t75" style='width:365.25pt;1523 height:310.5pt;visibility:visible;mso-wrap-style:square'>1534 id="_x0000_i1041" type="#_x0000_t75" style='width:365.25pt;height:310.5pt; 1535 visibility:visible;mso-wrap-style:square'> 1524 1536 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image019.png" 1525 1537 o:title="" croptop="12098f" cropbottom="16193f" cropleft="40187f" 1526 1538 cropright="10237f"/> 1527 1539 </v:shape><![endif]--><![if !vml]><img width=487 height=414 1528 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 20.jpg"1529 v:shapes=" Picture_x0020_12"><![endif]></span></p>1540 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image060.jpg" 1541 v:shapes="_x0000_i1041"><![endif]></span></p> 1530 1542 1531 1543 <p class=MsoNormal>Ive rotated the drawing around to show an obvious gap in … … 1546 1558 1547 1559 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1548 id=" _x0000_i1040" type="#_x0000_t75" style='width:525pt;height:450pt;1549 visibility:visible;mso-wrap-style:square'>1560 id="Picture_x0020_11" o:spid="_x0000_i1040" type="#_x0000_t75" style='width:525pt; 1561 height:450pt;visibility:visible;mso-wrap-style:square'> 1550 1562 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image021.png" 1551 1563 o:title=""/> 1552 1564 </v:shape><![endif]--><![if !vml]><img width=700 height=600 1553 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 22.gif"1554 v:shapes=" _x0000_i1040"><![endif]></span></p>1565 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image061.gif" 1566 v:shapes="Picture_x0020_11"><![endif]></span></p> 1555 1567 1556 1568 <p class=MsoNormal>Green rings are the observed magnitude, blue rings are the … … 1566 1578 1567 1579 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1568 id=" _x0000_i1039" type="#_x0000_t75" style='width:369pt;height:310.5pt;1569 visibility:visible;mso-wrap-style:square'>1580 id="Picture_x0020_12" o:spid="_x0000_i1039" type="#_x0000_t75" style='width:369pt; 1581 height:310.5pt;visibility:visible;mso-wrap-style:square'> 1570 1582 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image023.png" 1571 1583 o:title="" croptop="9828f" cropbottom="18427f" cropleft="38257f" cropright="12033f"/> 1572 1584 </v:shape><![endif]--><![if !vml]><img width=492 height=414 1573 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 24.jpg"1574 v:shapes=" _x0000_i1039"><![endif]></span></p>1585 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image062.jpg" 1586 v:shapes="Picture_x0020_12"><![endif]></span></p> 1575 1587 1576 1588 <p class=MsoNormal>The size of the squares is proportional to the magnitude of <span … … 1598 1610 o:title=""/> 1599 1611 </v:shape><![endif]--><![if !vml]><img width=400 height=404 1600 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 26.gif"1612 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image063.gif" 1601 1613 v:shapes="Picture_x0020_16"><![endif]></span></p> 1602 1614 … … 1630 1642 from the next popup; this will copy the extinction model to all HKLF data sets.</p> 1631 1643 1632 <p class=MsoNormal>Because all of these extinction models are needed for one crystal,1633 it makes sense to tie them together into a single parameter. Select <b1644 <p class=MsoNormal>Because all of these extinction models are needed for one 1645 crystal, it makes sense to tie them together into a single parameter. Select <b 1634 1646 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1635 1647 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Constraints</span></b> … … 1643 1655 1644 1656 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1645 id=" Picture_x0020_17" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:468.75pt;1646 height:300pt;visibility:visible;mso-wrap-style:square'>1657 id="_x0000_i1037" type="#_x0000_t75" style='width:468.75pt;height:300pt; 1658 visibility:visible;mso-wrap-style:square'> 1647 1659 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image027.png" 1648 1660 o:title=""/> 1649 1661 </v:shape><![endif]--><![if !vml]><img width=625 height=400 1650 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image028.gif" 1651 v:shapes="Picture_x0020_17"><![endif]></span></p> 1652 1653 <p class=MsoNormal>Select the line beginning with <b style='mso-bidi-font-weight: 1654 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1655 minor-latin;mso-hansi-theme-font:minor-latin'>0:0<span class=GramE>:Eg<span 1656 style='font-family:"Times New Roman",serif;font-weight:normal'></span></span></span></b> 1662 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image064.gif" 1663 v:shapes="_x0000_i1037"><![endif]></span></p> 1664 1665 <p class=MsoNormal>Select the line beginning with <span class=GramE><b 1666 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1667 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>0:0:Eg</span></b></span> 1657 1668 (the Secondary type I parameter you just set to vary) and press <b 1658 1669 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; … … 1661 1672 1662 1673 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1663 id=" Picture_x0020_18" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:468.75pt;1664 height:300pt;visibility:visible;mso-wrap-style:square'>1674 id="_x0000_i1036" type="#_x0000_t75" style='width:468.75pt;height:300pt; 1675 visibility:visible;mso-wrap-style:square'> 1665 1676 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image029.png" 1666 1677 o:title=""/> 1667 1678 </v:shape><![endif]--><![if !vml]><img width=625 height=400 1668 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image030.gif" 1669 v:shapes="Picture_x0020_18"><![endif]></span></p> 1670 1671 <p class=MsoNormal>Pick either <b style='mso-bidi-font-weight:normal'><span 1672 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1673 mso-hansi-theme-font:minor-latin'>0<span class=GramE>:all:Eg</span></span></b> 1679 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image065.gif" 1680 v:shapes="_x0000_i1036"><![endif]></span></p> 1681 1682 <p class=MsoNormal>Pick either <span class=GramE><b style='mso-bidi-font-weight: 1683 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1684 minor-latin;mso-hansi-theme-font:minor-latin'>0:all</span></b></span><b 1685 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1686 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>:Eg</span></b> 1674 1687 or <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1675 1688 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>0:all=<span … … 1686 1699 o:title=""/> 1687 1700 </v:shape><![endif]--><![if !vml]><img width=642 height=246 1688 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 32.gif"1701 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image066.gif" 1689 1702 v:shapes="Picture_x0020_20"><![endif]></span></p> 1690 1703 1691 1704 <p class=MsoNormal>Now do <b style='mso-bidi-font-weight:normal'><span 1692 1705 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1693 mso-hansi-theme-font:minor-latin'>Calculate/Refine</span></b> from the main 1694 GSAS-IIdata tree menu. You may have to repeat this twice to get convergence (<span1706 mso-hansi-theme-font:minor-latin'>Calculate/Refine</span></b> from the main GSAS-II 1707 data tree menu. You may have to repeat this twice to get convergence (<span 1695 1708 class=SpellE>Rw</span> ~14%); note the console output value of Delta 1696 1709 indicates closeness to convergence. Select one of the HKLF data sets and view … … 1698 1711 1699 1712 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1700 id=" _x0000_i1034" type="#_x0000_t75" style='width:362.25pt;height:311.25pt;1701 visibility:visible;mso-wrap-style:square'>1713 id="Picture_x0020_17" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:362.25pt; 1714 height:311.25pt;visibility:visible;mso-wrap-style:square'> 1702 1715 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image033.png" 1703 1716 o:title="" croptop="15476f" cropbottom="12688f" cropleft="40744f" 1704 1717 cropright="9798f"/> 1705 1718 </v:shape><![endif]--><![if !vml]><img width=483 height=415 1706 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image034.jpg" 1707 v:shapes="_x0000_i1034"><![endif]></span></p> 1708 1709 <p class=MsoNormal>The <span class=SpellE>wDF</span> is positive close to 0<span 1710 class=GramE>,0,0</span> then negative for an inner shell around the positive 1711 core and finally positive for the outer shell. This is a thermal 1712 parameter/extinction effect. So both have to be now refined. However, as a 1713 matter of course we may expect that the extinction corrections are less 1714 accurate when <span class=SpellE><span class=GramE>Fo</span></span><< Fc. 1715 In addition some reflections were poorly measured. We want to reject 1716 reflections where <span class=SpellE>Fo</span>/Fc < 0.5 and Fo2/<span 1717 class=GramE>s(</span>Fo2) < 3. These can be applied on the <b 1718 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1719 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Controls</span></b> 1720 page. After setting these my Controls were</p> 1719 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image067.jpg" 1720 v:shapes="Picture_x0020_17"><![endif]></span></p> 1721 1722 <p class=MsoNormal>The <span class=SpellE>wDF</span> is positive close to 0,0,0 1723 then negative for an inner shell around the positive core and finally positive 1724 for the outer shell. This is a thermal parameter/extinction effect. So both 1725 have to be now refined. However, as a matter of course we may expect that the 1726 extinction corrections are less accurate when <span class=SpellE>Fo</span><< 1727 Fc. In addition some reflections were poorly measured. We want to reject 1728 reflections where <span class=SpellE>Fo</span>/Fc < 0.5 and Fo2/s(Fo2) < 1729 3. These can be applied on the <b style='mso-bidi-font-weight:normal'><span 1730 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1731 mso-hansi-theme-font:minor-latin'>Controls</span></b> page. After setting these 1732 my Controls were</p> 1721 1733 1722 1734 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1723 id=" _x0000_i1033" type="#_x0000_t75" style='width:366pt;height:212.25pt;1724 visibility:visible;mso-wrap-style:square'>1735 id="Picture_x0020_18" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:366pt; 1736 height:212.25pt;visibility:visible;mso-wrap-style:square'> 1725 1737 <v:imagedata src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image035.png" 1726 1738 o:title=""/> 1727 1739 </v:shape><![endif]--><![if !vml]><img width=488 height=283 1728 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 36.gif"1729 v:shapes=" _x0000_i1033"><![endif]></span></p>1740 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image068.gif" 1741 v:shapes="Picture_x0020_18"><![endif]></span></p> 1730 1742 1731 1743 <p class=MsoNormal>Finally we can add the atom parameters for sapphire. Select … … 1741 1753 o:title=""/> 1742 1754 </v:shape><![endif]--><![if !vml]><img width=700 height=300 1743 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 10.gif"1755 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image055.gif" 1744 1756 v:shapes="Picture_x0020_21"><![endif]></span></p> 1745 1757 … … 1755 1767 o:title=""/> 1756 1768 </v:shape><![endif]--><![if !vml]><img width=346 height=336 1757 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 38.gif"1769 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image069.gif" 1758 1770 v:shapes="Picture_x0020_22"><![endif]></span></p> 1759 1771 … … 1773 1785 o:title=""/> 1774 1786 </v:shape><![endif]--><![if !vml]><img width=700 height=300 1775 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 40.gif"1787 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image070.gif" 1776 1788 v:shapes="Picture_x0020_23"><![endif]></span></p> 1777 1789 … … 1799 1811 cropright="9847f"/> 1800 1812 </v:shape><![endif]--><![if !vml]><img width=484 height=417 1801 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 42.jpg"1813 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image071.jpg" 1802 1814 v:shapes="Picture_x0020_24"><![endif]></span></p> 1803 1815 … … 1815 1827 <p class=MsoNormal>Phase:<span style='mso-spacerun:yes'> </span><span 1816 1828 class=GramE>sapphire<span style='mso-spacerun:yes'> </span>in</span> 1817 histogram:<span style='mso-spacerun:yes'> </span>HKLF 1818 sapphire_sphere.hkl_22<span 1819 style='mso-spacerun:yes'> </span><o:p></o:p></p> 1820 1821 <p class=MsoNormal>------------------------------------------------------------------------------------------------------<o:p></o:p></p> 1829 histogram:<span style='mso-spacerun:yes'> </span>HKLF sapphire_sphere.hkl_22<span 1830 style='mso-spacerun:yes'> </span></p> 1831 1832 <p class=MsoNormal>------------------------------------------------------------------------------------------------------</p> 1822 1833 1823 1834 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Final refinement RF, 1824 1835 RF^2 = 4.64%, 8.41% on 134 reflections (3 user rejected, 9 <span class=SpellE>sp.gp.extinct</span>)<span 1825 style='mso-spacerun:yes'> </span>< o:p></o:p></p>1836 style='mso-spacerun:yes'> </span></p> 1826 1837 1827 1838 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>HKLF histogram weight 1828 1839 factor <span class=GramE>=<span style='mso-spacerun:yes'> </span>1.000</span><span 1829 1840 style='mso-spacerun:yes'> 1830 </span>< o:p></o:p></p>1841 </span></p> 1831 1842 1832 1843 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Scale <span 1833 1844 class=GramE>factor :</span><span style='mso-spacerun:yes'> </span>66.8623, 1834 1845 sig<span style='mso-spacerun:yes'> </span>0.8144<span 1835 style='mso-spacerun:yes'> </span><span1836 style='mso-spacerun:yes'> </span><o:p></o:p></p>1846 style='mso-spacerun:yes'> 1847 </span></p> 1837 1848 1838 1849 <p class=MsoNormal><span 1839 style='mso-spacerun:yes'> 1840 </span><o:p></o:p></p>1850 style='mso-spacerun:yes'> </span><span 1851 style='mso-spacerun:yes'> </span></p> 1841 1852 1842 1853 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Single crystal … … 1844 1855 style='mso-spacerun:yes'> </span><span class=SpellE>Approx</span></span>:<span 1845 1856 style='mso-spacerun:yes'> </span>Secondary Type I<span 1846 style='mso-spacerun:yes'> </span><span 1847 style='mso-spacerun:yes'> </span><o:p></o:p></p> 1857 style='mso-spacerun:yes'> </span></p> 1858 1859 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span 1860 class=SpellE>Eg</span>:<span style='mso-spacerun:yes'> </span>5.58e-04 1861 sig:<span style='mso-spacerun:yes'> </span>1.28e-05<span 1862 style='mso-spacerun:yes'> </span><span 1863 style='mso-spacerun:yes'> </span></p> 1864 1865 <p class=MsoNormal><span 1866 style='mso-spacerun:yes'> 1867 </span></p> 1868 1869 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Phase:<span 1870 style='mso-spacerun:yes'> </span><span class=GramE>sapphire<span 1871 style='mso-spacerun:yes'> </span>in</span> histogram:<span 1872 style='mso-spacerun:yes'> </span>HKLF sapphire_sphere.hkl_23<span 1873 style='mso-spacerun:yes'> </span></p> 1874 1875 <p class=MsoNormal>------------------------------------------------------------------------------------------------------</p> 1876 1877 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Final refinement RF, 1878 RF^2 = 21.69%, 38.49% on 148 reflections (5 user rejected, 6 <span 1879 class=SpellE>sp.gp.extinct</span>)<span style='mso-spacerun:yes'> </span></p> 1880 1881 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>HKLF histogram weight 1882 factor <span class=GramE>=<span style='mso-spacerun:yes'> </span>1.000</span><span 1883 style='mso-spacerun:yes'> </span><span 1884 style='mso-spacerun:yes'> </span></p> 1885 1886 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Scale <span 1887 class=GramE>factor :</span><span style='mso-spacerun:yes'> </span>43.2084, 1888 sig<span style='mso-spacerun:yes'> </span>0.6507<span 1889 style='mso-spacerun:yes'> 1890 </span></p> 1891 1892 <p class=MsoNormal><span 1893 style='mso-spacerun:yes'> 1894 </span></p> 1895 1896 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Single crystal 1897 extinction: Type:<span style='mso-spacerun:yes'> </span><span class=GramE>Lorentzian<span 1898 style='mso-spacerun:yes'> </span><span class=SpellE>Approx</span></span>:<span 1899 style='mso-spacerun:yes'> </span>Secondary Type I<span 1900 style='mso-spacerun:yes'> </span></p> 1848 1901 1849 1902 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span … … 1851 1904 sig:<span style='mso-spacerun:yes'> </span>1.28e-05<span 1852 1905 style='mso-spacerun:yes'> 1853 </span>< o:p></o:p></p>1906 </span></p> 1854 1907 1855 1908 <p class=MsoNormal><span 1856 style='mso-spacerun:yes'> 1857 </span>< o:p></o:p></p>1909 style='mso-spacerun:yes'> 1910 </span><span style='mso-spacerun:yes'> </span></p> 1858 1911 1859 1912 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Phase:<span 1860 1913 style='mso-spacerun:yes'> </span><span class=GramE>sapphire<span 1861 1914 style='mso-spacerun:yes'> </span>in</span> histogram:<span 1862 style='mso-spacerun:yes'> </span>HKLF sapphire_sphere.hkl_2 3<span1863 style='mso-spacerun:yes'> </span>< o:p></o:p></p>1864 1865 <p class=MsoNormal>------------------------------------------------------------------------------------------------------< o:p></o:p></p>1915 style='mso-spacerun:yes'> </span>HKLF sapphire_sphere.hkl_24<span 1916 style='mso-spacerun:yes'> </span></p> 1917 1918 <p class=MsoNormal>------------------------------------------------------------------------------------------------------</p> 1866 1919 1867 1920 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Final refinement RF, 1868 RF^2 = 21.69%, 38.49% on 148 reflections (5 user rejected, 6<span1869 class=SpellE>sp.gp.extinct</span>)<span style='mso-spacerun:yes'> </span><o:p></o:p></p>1921 RF^2 = 3.86%, 6.70% on 160 reflections (11 user rejected, 1 <span class=SpellE>sp.gp.extinct</span>)<span 1922 style='mso-spacerun:yes'> </span></p> 1870 1923 1871 1924 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>HKLF histogram weight 1872 1925 factor <span class=GramE>=<span style='mso-spacerun:yes'> </span>1.000</span><span 1873 1926 style='mso-spacerun:yes'> 1874 </span>< o:p></o:p></p>1927 </span></p> 1875 1928 1876 1929 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Scale <span 1877 class=GramE>factor :</span><span style='mso-spacerun:yes'> </span> 43.2084,1878 sig<span style='mso-spacerun:yes'> </span>0. 6507<span1879 style='mso-spacerun:yes'> 1880 </span><o:p></o:p></p>1930 class=GramE>factor :</span><span style='mso-spacerun:yes'> </span>66.6296, 1931 sig<span style='mso-spacerun:yes'> </span>0.7816<span 1932 style='mso-spacerun:yes'> </span><span 1933 style='mso-spacerun:yes'> </span></p> 1881 1934 1882 1935 <p class=MsoNormal><span 1883 style='mso-spacerun:yes'> </span><span1884 style='mso-spacerun:yes'> </span><o:p></o:p></p>1936 style='mso-spacerun:yes'> 1937 </span></p> 1885 1938 1886 1939 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Single crystal … … 1888 1941 style='mso-spacerun:yes'> </span><span class=SpellE>Approx</span></span>:<span 1889 1942 style='mso-spacerun:yes'> </span>Secondary Type I<span 1890 style='mso-spacerun:yes'> </span>< o:p></o:p></p>1943 style='mso-spacerun:yes'> </span></p> 1891 1944 1892 1945 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span 1893 class=SpellE>Eg</span>:<span style='mso-spacerun:yes'> </span>5.58e-04 1894 s ig:<span style='mso-spacerun:yes'> </span>1.28e-05<span1895 style='mso-spacerun:yes'> 1896 </span>< span style='mso-spacerun:yes'> </span><o:p></o:p></p>1946 class=SpellE>Eg</span>:<span style='mso-spacerun:yes'> </span>5.58e-04 sig:<span 1947 style='mso-spacerun:yes'> </span>1.28e-05<span 1948 style='mso-spacerun:yes'> 1949 </span></p> 1897 1950 1898 1951 <p class=MsoNormal><span 1899 1952 style='mso-spacerun:yes'> 1900 </span><o:p></o:p></p> 1901 1902 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Phase:<span 1903 style='mso-spacerun:yes'> </span><span class=GramE>sapphire<span 1904 style='mso-spacerun:yes'> </span>in</span> histogram:<span 1905 style='mso-spacerun:yes'> </span>HKLF sapphire_sphere.hkl_24<span 1906 style='mso-spacerun:yes'> </span><o:p></o:p></p> 1907 1908 <p class=MsoNormal>------------------------------------------------------------------------------------------------------<o:p></o:p></p> 1909 1910 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Final refinement RF, 1911 RF^2 = 3.86%, 6.70% on 160 reflections (11 user rejected, 1 <span class=SpellE>sp.gp.extinct</span>)<span 1912 style='mso-spacerun:yes'> </span><o:p></o:p></p> 1913 1914 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>HKLF histogram weight 1915 factor <span class=GramE>=<span style='mso-spacerun:yes'> </span>1.000</span><span 1916 style='mso-spacerun:yes'> 1917 </span><span style='mso-spacerun:yes'> </span><o:p></o:p></p> 1918 1919 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Scale <span 1920 class=GramE>factor :</span><span style='mso-spacerun:yes'> </span>66.6296, 1921 sig<span style='mso-spacerun:yes'> </span>0.7816<span 1922 style='mso-spacerun:yes'> 1923 </span><o:p></o:p></p> 1924 1925 <p class=MsoNormal><span 1926 style='mso-spacerun:yes'> 1927 </span><o:p></o:p></p> 1928 1929 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Single crystal 1930 extinction: Type:<span style='mso-spacerun:yes'> </span><span class=GramE>Lorentzian<span 1931 style='mso-spacerun:yes'> </span><span class=SpellE>Approx</span></span>:<span 1932 style='mso-spacerun:yes'> </span>Secondary Type I<span 1933 style='mso-spacerun:yes'> </span><o:p></o:p></p> 1934 1935 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span 1936 class=SpellE>Eg</span>:<span style='mso-spacerun:yes'> </span>5.58e-04 1937 sig:<span style='mso-spacerun:yes'> </span>1.28e-05<span 1938 style='mso-spacerun:yes'> 1939 </span><o:p></o:p></p> 1940 1941 <p class=MsoNormal><span 1942 style='mso-spacerun:yes'> 1943 </span><span style='mso-spacerun:yes'> </span></p> 1953 </span></p> 1944 1954 1945 1955 <p class=MsoNormal>There is obviously something wrong with #23 (high residual … … 1956 1966 o:title="" croptop="9290f" cropbottom="18441f" cropleft="38576f" cropright="11843f"/> 1957 1967 </v:shape><![endif]--><![if !vml]><img width=487 height=420 1958 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 44.jpg"1968 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image072.jpg" 1959 1969 v:shapes="Picture_x0020_25"><![endif]></span></p> 1960 1970 1961 <p class=MsoNormal>By zooming in and rotating the plot around a bit, you can identify1962 the reflection with the cursor. It seems to be the <b style='mso-bidi-font-weight: 1963 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1964 m inor-latin;mso-hansi-theme-font:minor-latin'>541</span></b> reflection; select1965 the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1966 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Reflection 1967 List</span></b> and look for it (unfortunately the reflections are produced in 1968 a somewhat random order by the TOPAZ data acquisition system). It is very near 1969 the bottom of the list (#<b style='mso-bidi-font-weight:normal'><span 1970 style=' font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;1971 mso- hansi-theme-font:minor-latin'>153</span></b>).</p>1971 <p class=MsoNormal>By zooming in and rotating the plot around a bit, you can 1972 identify the reflection with the cursor. It seems to be the <b 1973 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1974 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>541</span></b> 1975 reflection; select the <b style='mso-bidi-font-weight:normal'><span 1976 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1977 mso-hansi-theme-font:minor-latin'>Reflection List</span></b> and look for it 1978 (unfortunately the reflections are produced in a somewhat random order by the 1979 TOPAZ data acquisition system). It is very near the bottom of the list (#<b 1980 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1981 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>153</span></b>).</p> 1972 1982 1973 1983 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1977 1987 o:title=""/> 1978 1988 </v:shape><![endif]--><![if !vml]><img width=780 height=326 1979 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 46.gif"1989 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image073.gif" 1980 1990 v:shapes="Picture_x0020_26"><![endif]></span></p> 1981 1991 1982 1992 <p class=MsoNormal>The <span class=SpellE>Fcsq</span> (F<sub>c</sub><sup>2</sup>) 1983 1993 is very much larger than <span class=SpellE>Fosq</span> (F<sub>o</sub><sup>2</sup>) 1984 so that |ΔF<sup>2</sup>|/ <span class=GramE>σ(</span>F<sub>o</sub><sup>2</sup>)1985 > 80! It was obviously poorly measured (e.g. on the edge of the detector, 1986 etc.). Wed like to eliminate it, but perhaps we might be better setting a 1987 lower cutoff on |ΔF<sup>2</sup>|/<span class=GramE>σ(</span>F<sub>o</sub><sup>2</sup>) 1988 to eliminate other similar problem reflections. Go to the <b style='mso-bidi-font-weight: 1989 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1990 m inor-latin;mso-hansi-theme-font:minor-latin'>Controls</span></b> entry in the1991 GSAS-II datatree</p>1994 so that |ΔF<sup>2</sup>|/σ(F<sub>o</sub><sup>2</sup>) > 80! It was 1995 obviously poorly measured (e.g. on the edge of the detector, etc.). Wed like 1996 to eliminate it, but perhaps we might be better setting a lower cutoff on 1997 |ΔF<sup>2</sup>|/σ(F<sub>o</sub><sup>2</sup>) to eliminate other 1998 similar problem reflections. Go to the <b style='mso-bidi-font-weight:normal'><span 1999 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2000 mso-hansi-theme-font:minor-latin'>Controls</span></b> entry in the GSAS-II data 2001 tree</p> 1992 2002 1993 2003 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1997 2007 o:title=""/> 1998 2008 </v:shape><![endif]--><![if !vml]><img width=522 height=301 1999 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 48.gif"2009 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image074.gif" 2000 2010 v:shapes="Picture_x0020_27"><![endif]></span></p> 2001 2011 … … 2015 2025 o:title="" croptop="8876f" cropbottom="19515f" cropleft="39851f" cropright="10631f"/> 2016 2026 </v:shape><![endif]--><![if !vml]><img width=484 height=413 2017 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image0 50.jpg"2027 src="TOF%20single%20crystal%20refinement%20in%20GSAS_files/image075.jpg" 2018 2028 v:shapes="Picture_x0020_28"><![endif]></span></p> 2019 2029 … … 2030 2040 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2031 2041 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Atoms</span></b> 2032 tab; then double click <span class=GramE>the <b style='mso-bidi-font-weight: 2033 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2034 minor-latin;mso-hansi-theme-font:minor-latin'>I</span></b></span><b 2035 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2036 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>/A</span></b> 2037 column heading. A popup will appear; select <b style='mso-bidi-font-weight: 2038 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2039 minor-latin;mso-hansi-theme-font:minor-latin'>Anisotropic</span></b> and press <b 2040 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2041 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>OK</span></b>. 2042 The atom <span class=SpellE>Uijs</span> will appear and <span class=SpellE>Uiso</span> 2043 will be greyed out. Then do <b style='mso-bidi-font-weight:normal'><span 2042 tab; then double click the <b style='mso-bidi-font-weight:normal'><span 2043 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2044 mso-hansi-theme-font:minor-latin'>I/A</span></b> column heading. A popup will 2045 appear; select <b style='mso-bidi-font-weight:normal'><span style='font-family: 2046 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 2047 minor-latin'>Anisotropic</span></b> and press <b style='mso-bidi-font-weight: 2048 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2049 minor-latin;mso-hansi-theme-font:minor-latin'>OK</span></b>. The atom <span 2050 class=SpellE>Uijs</span> will appear and <span class=SpellE>Uiso</span> will be 2051 greyed out. Then do <b style='mso-bidi-font-weight:normal'><span 2044 2052 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2045 2053 mso-hansi-theme-font:minor-latin'>Calculate/Refine</span></b> again. My final -
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