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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">Spin-echo small-angle neutron scattering (or SESANS) is a variant of SANS that uses the Larmor precession of polarised neutrons to study the structure of materials over length
scales larger than those accessible by conventional SANS (comparable to USANS), and in real space.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">SESANS instruments have the same need for reliable and reproducible measurements that any neutron instruments do. To address this, we have formed a new subgroup of the canSAS
Reproducibility and Reliability Working Group to focus on “SESANS Reproducibility”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">The mission of the group is to achieve SESANS measurements that are the same, independent of the instrument used. We will discuss possible standard calibration samples for SESANS
as well as general issues of reproducibility between instruments.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">More information about the group can be found on the canSAS wiki.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://cansas.org/wgwiki/index.php/SESANS_Reproducibility_Working_Group">https://cansas.org/wgwiki/index.php/SESANS_Reproducibility_Working_Group</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">Furthermore, we have established a mailing list so that interested researchers can keep informed of our activities. If you are interested in joining this mailing list, you can
subscribe here.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><a href="https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=SESANS-WORKING-GROUP&A=1">https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=SESANS-WORKING-GROUP&A=1</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">We look forward to updating the neutron community of our activities as we make progress.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">Apologies for any cross-posting!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif">Gregory Smith, ISIS Neutron and Muon Source (on behalf of the members of the working group)<o:p></o:p></span></p>
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