<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello Maciej,<br></div><div><br data-mce-bogus="1"></div><div>The best is to look at the S_coh(q) for large q, which is expected to converge to 1.<br data-mce-bogus="1"></div><div>As far as I can remember, there is such an automatic normalisation mechanism in the Isotropic_Sqw component, so that in practice you may skip any norm step with syntax Isotropic_Sqw(norm=-1), which is the default.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Emmanuel.<br data-mce-bogus="1"></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>De: </b>"Maciej Bartkowiak, STFC UKRI" <maciej.bartkowiak@stfc.ac.uk><br><b>À: </b>"FARHI Emmanuel" <emmanuel.farhi@synchrotron-soleil.fr><br><b>Envoyé: </b>Vendredi 15 Novembre 2024 09:54:04<br><b>Objet: </b>McStas isotropic Sqw sample (from the MDANSE perspective)<br></div><div><br><style style="display:none;"> P {margin-top:0;margin-bottom:0;} </style></div><div data-marker="__QUOTED_TEXT__">
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Dear Emmanuel,</div>
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I am trying to pass the S(Q,w) values from MDANSE to McStas and I would like to know how what input McStas expects. I think that you may be the right person to ask about the isotropic S(Q,w) sample in McStas.</div>
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When I was looking at the documentation, I found information about the units of the q and omega axes, but I am not sure about the unit and normalisation convention for the S(Q,w) values themselves. Where could I find the information? Please let me know if you
could point me in the right direction.</div>
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Best regards,</div>
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Maciej Bartkowiak</div>
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