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<body lang="en-SE" link="blue" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Dear colleagues and GISANS-interested scientists,<span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">A</span> first community workshop of the initiative <b>“GISANS – Advancing Data Reduction and Analysis”</b> discussed current needs in instrumentation and data reduction for GISANS. Discussions focused <span lang="EN-US">around</span> multiple
scattering, normalization and background handling, as well as magnetic and polarization-analysed measurements.<o:p></o:p></p>
<p class="MsoNormal">Thanks to broad input, it was concluded that <b>coordinated standards, improved modelling tools, and clearly defined data and metadata structures are essential to advance GISANS analysis</b> (see the workshop summary:<br>
<a href="https://wiki.cansas.org/index.php?title=/GISANS_-_Advancing_data_reduction_and_analysis_Workshop#1%22_2026-03-17/18" target="_blank">https://wiki.cansas.org/index.php?title=/GISANS_-_Advancing_data_reduction_and_analysis_Workshop#1%22_2026-03-17/18</a>).<span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">Work plans now include:<span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b>1. Multiple Scattering </b><br>
Develop practical methods to identify and quantify the multiple scattering that arises in GISANS experimentally and integrate modelling tools (e.g. Monte Carlo).<o:p></o:p></p>
<p class="MsoNormal"><b>2. Background Handling</b><br>
Establish system and instrument dependent best practices and integrate background modelling into fitting workflows.<o:p></o:p></p>
<p class="MsoNormal"><b>3. Normalization</b><br>
Define standardized, normalization procedures with reproducible uncertainty treatment.<o:p></o:p></p>
<p class="MsoNormal"><b>4. Data Formats</b><br>
Develop a common reduced-data format (e.g. NeXus-based) that preserves essential metadata for resolution, normalization, background, and uncertainties to enable better sharing of analysis tools.<span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b>To move forward and to develop groups to address these issues, we kindly ask for your contribution by completing the following surveys.</b> The aim is to allow those who could not participate in the workshop to become involved. Results
will be evaluated and discussed in upcoming meetings. The goal is to:<span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%;mso-list:l3 level1 lfo6">
Identify current challenges and steps to resolve them<o:p></o:p></li><li class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%;mso-list:l3 level1 lfo6">
Compare workflows across facilities<o:p></o:p></li><li class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%;mso-list:l3 level1 lfo6">
Provide a base for harmonizing GISANS practices <o:p></o:p></li></ul>
<p class="MsoNormal">We would greatly appreciate completion of those surveys that interest you at your earliest convenience, and no later than <b>the end of June</b>, to allow sufficient time for evaluation and planning of future work and meetings.<o:p></o:p></p>
<p class="MsoNormal"><b>(i) A General survey – interest in joint GISA(N/X)S data reduction and analysis workshops/meetings:</b><span style="mso-ligatures:none">
</span><br>
<a href="https://docs.google.com/forms/d/e/1FAIpQLScJIezI9-v5pMrFwkKZwj2uC9AZf65ZBfKnjjWwZDJxZnS7nQ/viewform" target="_blank">https://docs.google.com/forms/d/e/1FAIpQLScJIezI9-v5pMrFwkKZwj2uC9AZf65ZBfKnjjWwZDJxZnS7nQ/viewform</a><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none"><img border="0" width="59" height="59" style="width:.6145in;height:.6145in" id="Picture_x0020_1" src="cid:image001.png@01DCE772.38126590"></span><o:p></o:p></p>
<p class="MsoNormal"><b>(ii) Survey on normalization, background handling, and instrumentation:</b><br>
<a href="https://docs.google.com/forms/d/e/1FAIpQLScCMceGlp71DWP-4T2YqHCqw798ABYea1oRMHf7W6T9qIl41w/viewform" target="_blank">https://docs.google.com/forms/d/e/1FAIpQLScCMceGlp71DWP-4T2YqHCqw798ABYea1oRMHf7W6T9qIl41w/viewform</a><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-ligatures:none"><img border="0" width="59" height="59" style="width:.6145in;height:.6145in" id="Picture_x0020_2" src="cid:image002.png@01DCE772.38126590"></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b>(iii) Ideas on common data formats for GISA(N/X)S:</b><br>
<a href="https://docs.google.com/forms/d/e/1FAIpQLSedX9kCjrid85AE95iMmXSK4k8uY28kfCrPedLLIkzvze5BoQ/viewform" target="_blank">https://docs.google.com/forms/d/e/1FAIpQLSedX9kCjrid85AE95iMmXSK4k8uY28kfCrPedLLIkzvze5BoQ/viewform</a><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-ligatures:none"><img border="0" width="59" height="59" style="width:.6145in;height:.6145in" id="Picture_x0020_3" src="cid:image003.png@01DCE772.38126590"></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">Thank you very much for your time and contribution to strengthening the GISANS community. We apologise if you have already received this message by other channels.<span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">With our best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">The GISANS workshop organizing team: Apostolos Vagias, Annika Stellhorn, and Adrian Rennie</span><o:p></o:p></p>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
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