<div dir="ltr">Thank you Pedro and Devin for your replies,<div><br></div><div>I have done like suggested by you Devin, i.e. changing the yield, time constant and rindex. If anyone else has suggestsions on other/more values, please let us know!</div><div><br></div><div>Thank you,</div><div>Ida</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 10, 2015 at 8:47 PM, Devin VanElburg <span dir="ltr"><<a href="mailto:vanelbud@tbh.net" target="_blank">vanelbud@tbh.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">From what I see, the only scintillating material predefined in GATE is LSO. I also have been attempting to do scintillation simulations with LYSO. All I did was copy the LSO data, and change SCINTILLATIONYIELD to 32000 photons/MeV, FASTTIMECONSTANT to 41 ns, and RINDEX to 1.81 (hardly a difference).<br>
<br>
I kept RESOLUTIONSCALE, YIELDRATIO, and ABSLENGTH the same as LSO. I suppose I share the same question as you, Ida. What have people been using for these other values?<br>
<br>
Cheers,<br>
Devin Van Elburg<br>
----------------------------<br>
Physics w/ c/ Biomedical Physics<br>
Lakehead University<br>
<br>
>>> Alex Vergara Gil <<a href="mailto:alexvergaragil@gmail.com" target="_blank">alexvergaragil@gmail.com</a>> 06/10/15 10:32 AM >>><br>
<span>AFAIK LYSO is a crystal like material, so it is already used in the<br>
crystalSD detector, please correct me if I am wrong. So it is better<br>
used that way because Geant4 can simulate all kind of crystalline<br>
effects and it will be more realistic approach.<br>
<br>
Regards<br>
Alex<br>
<br>
2015-06-10 9:07 GMT-04:00, Ida Häggström <<a href="mailto:ida.haggstrom@umu.se" target="_blank">ida.haggstrom@umu.se</a>>:<br>
</span><div><div>> Dear gaters,<br>
><br>
> I have just installed version 7.1 of Gate and am including the material<br>
> LYSO in the database. First of all, I found previous posts indicating the<br>
> definition in GateMaterials.db was not correct, and have thus changed it<br>
> to:<br>
><br>
> LYSO: d=7.36 g/cm3; n=4 ; state=Solid<br>
> +el: name=Lutetium; f=0.714467891<br>
> +el: name=Yttrium; f=0.04033805<br>
> +el: name=Silicon; f=0.063714272<br>
> +el: name=Oxygen; f=0.181479788<br>
><br>
> I also want to add the optical properties of the material to Materials.xml.<br>
> Does anyone have proper values for the RINDEX, ABSLENGTH, YIELDRATIO,<br>
> FASTCOMPONENT... etc? I think I can probably find values of the<br>
> SCINTILLATIONYIELD and also the FASTTIMECONSTANT, but the others I'm not<br>
> sure of.<br>
><br>
> Thanks in advance! Sincerely,<br>
> Ida<br>
><br>
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