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Dear GSAS-II community, I have been working on setting up the instrument parameter file for a Bruker D2 in GSAS-II, using SRM 660 and 640 standards. However, I am encountering issues with peak identification, particularly with peak splitting</div>
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<p class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">Dear GSAS-II community,</span></p>
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I have been working on setting up the instrument parameter file for a Bruker D2 in GSAS-II, using SRM 660 and 640 standards. However, I am encountering issues with peak identification, particularly with peak splitting at higher 2� angles.</div>
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Given this, I was wondering if stripping the ka2 component is an absolutely necessary step for this process?</div>
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When I limit my 2� range to 20�80�, I manage to obtain reasonable U, V, W, X, and Y parameters. However, these parameters go spammy when I attempt to refine them over a broader range, such as 5�140� (to get the D2's full profile)</div>
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Finally, shouldn't I be getting the same parameters regardless of the standard I am using? LaB6 and Si produce completely different params.</div>
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I would greatly appreciate your thoughts or suggestions on this.</div>
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Looking forward to your insights.</div>
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Thanos</div>
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<b>Dr Thanos Goulas</b>, BEng MSc PhD</div>
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