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Hi Robert,
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<div class="">it’s good to know, that we are not the only ones who have some interest in that type of a component…</div>
<div class="">I agree with you guys what the main problem is. Absolute intensities (within reasonable limits) is what we</div>
<div class="">really need. I guess we are mostly talking about multiple scattering and inelastic processes which</div>
<div class="">is a lot of fun if you have a broad energy spectrum in the primary beam :-)</div>
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<div class="">We’ll be talking about this here to see if we can get a little core group together.</div>
<div class="">You’ll hear from me… </div>
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<div class="">Best wishes,</div>
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<div class="">Uli</div>
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<div class="">On 28 Apr 2020, at 08:33, Robert Dalgliesh - UKRI STFC <<a href="mailto:robert.dalgliesh@stfc.ac.uk" class="">robert.dalgliesh@stfc.ac.uk</a>> wrote:</div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Uli,<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">I think there are quite a few people who might be interested in this.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">It is something that has come up in discussion quite frequently.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">As Peter says the problem is usually how to get the absolute scattering intensity correct. Ideally it would also be great to think about how to get a transmission
calculation correct for a time-of-flight instrument.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">If you are interested in further discussion then I think it would be good to invite others into working on something together.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Best regards<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Rob<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">===================================<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Dr. Robert Dalgliesh<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">ISIS Neutron and Muon Source<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">STFC Rutherford Appleton Laboratory<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">R3 1.29<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Harwell Oxford<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Office Tel: +44 (0) 1235 445687<o:p class=""></o:p></span></div>
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<b class=""><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Apple-converted-space"> </span>mcstas-users
<<a href="mailto:mcstas-users-bounces@mcstas.org" style="color: purple; text-decoration: underline;" class="">mcstas-users-bounces@mcstas.org</a>><span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Wildgruber,
Christoph U.<br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>28 April 2020 13:18<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>Peter Kjær Willendrup <<a href="mailto:pkwi@fysik.dtu.dk" style="color: purple; text-decoration: underline;" class="">pkwi@fysik.dtu.dk</a>><br class="">
<b class="">Cc:</b><span class="Apple-converted-space"> </span>McStas <<a href="mailto:mcstas-users@mcstas.org" style="color: purple; text-decoration: underline;" class="">mcstas-users@mcstas.org</a>>; Qian, Shuo <<a href="mailto:qians@ornl.gov" style="color: purple; text-decoration: underline;" class="">qians@ornl.gov</a>><br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [mcstas-users] [EXTERNAL] Re: SANSCurve type component for I(qx, qy) instead of I(q)?<o:p class=""></o:p></span></div>
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Hi Peter,<span class="Apple-converted-space"> </span><o:p class=""></o:p></div>
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I’ll definitely look again more carefully :-)<o:p class=""></o:p></div>
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Besides that my strategy is to get a younger person here excited<o:p class=""></o:p></div>
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to learn how to write a McStas component…<o:p class=""></o:p></div>
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Thanks so much,<o:p class=""></o:p></div>
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Uli<o:p class=""></o:p></div>
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On 28 Apr 2020, at 03:24, Peter Kjær Willendrup <<a href="mailto:pkwi@fysik.dtu.dk" style="color: purple; text-decoration: underline;" class="">pkwi@fysik.dtu.dk</a>> wrote:<o:p class=""></o:p></div>
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Hi Uli,<span class="Apple-converted-space"> </span><o:p class=""></o:p></div>
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On 27 Apr 2020, at 23.07, Wildgruber, Christoph U. <<a href="mailto:wildgrubercu@ornl.gov" style="color: purple; text-decoration: underline;" class="">wildgrubercu@ornl.gov</a>> wrote:<o:p class=""></o:p></div>
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I might not be looking hard enough but I don’t think there is a SANS<br class="">
sample component similar to SANSCurve (which uses I(q) as an input file)<br class="">
that can handle I(qx, qy).<br class="">
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If anybody can point me in the right direction or has a component like that<br class="">
to share it would be greatly appreciated!<span class="Apple-converted-space"> </span><o:p class=""></o:p></div>
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For that sort of functionality I would be looking in the direction of the SASview (SASmodels really) sample <a href="http://www.mcstas.org/download/components/samples/SasView_model.html" style="color: purple; text-decoration: underline;" class="">http://www.mcstas.org/download/components/samples/SasView_model.html</a> which
does include models that are 2D in q. (It may also be that one of Henrich Frielinghaus’ contributed sample components has a similar feature?)<o:p class=""></o:p></div>
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The limitations of the SasView_model sample are that<o:p class=""></o:p></div>
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a) I am not entirely sure the absolute normalisation is completely correct <o:p class=""></o:p></div>
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b) One needs to recompile when shifting between models<o:p class=""></o:p></div>
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Should you decide to implement one yourself instead, such a model would of course always be welcome as a contribution. ;-)<o:p class=""></o:p></div>
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Best<o:p class=""></o:p></div>
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Peter<o:p class=""></o:p></div>
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<span style="font-size: 9pt; font-family: Helvetica, sans-serif;" class=""><br class="">
Peter Kjær Willendrup<br class="">
Forskningsingeniør, Specialkonsulent<br class="">
Næstformand for DTU Fysik LSU<br class="">
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DTU Physics<o:p class=""></o:p></span></p>
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Technical University of Denmark<br class="">
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Department of Physics<br class="">
Fysikvej<br class="">
Building 307<br class="">
DK-2800 Kongens Lyngby<br class="">
Direct +45 2125 4612<br class="">
Mobil +45 2125 4612<br class="">
Fax +45 4593 2399<br class="">
<a href="mailto:pkwi@fysik.dtu.dk" style="color: purple; text-decoration: underline;" class="">pkwi@fysik.dtu.dk</a></span></div>
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