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Many thanks for your help Nick!
I did corrections that you mention and was able to get nice USRBDX
result for photons but not for optical ones. It still zeroes.....(:
I am attaching new corrected input file.
As I understood from your explanation card OPT-PROP (sdum WV-LIMITS) is
optional and card OPT-PROP (sdum SENSITIV ) is used only for reducing
CPU load not for getting more precise results....?
I switched on also OPT-PROD (sdum SCINT-WV and WV-LIMITS) but without
luck!
I am little confused about WHAT(2) ( "fraction") parameter of OPT-PROD(
sdum SCINT-WV ), is it the same as /Luminosity [photons/Mev]???? /
How can I get USRBDX distribution of optical photons?
With regards V. Petrosyan!
On 10.12.2012 21:44, Nicholas Bolibruch wrote:
> Hi Vahan,
>
> Here are the issues with your input:
>
> 1) your source is at 20 MeV, and is isotropic. If you test it with a
> beam, make sure its in the positive direction, and set the primaries
> lower as the processing time is ~2 hrs on an i7 if it's made
> directional with your current settings. Using the SENSITIV sdum on
> OPT-PROP you can probably lower the OPT-PHOT production (and reduce
> CPU load) if you are trying to make other measurements at the same
> time in your simulation.
>
> 2) when entering in the wavelengths for the OPT-PROP (sdum WV-LIMITS)
> cards you want them in cm, they were all entered in as meters, you
> technically don't need them to run the simulation
>
> 3) same issue with OPT-PROD (sdum SCINT-WV), it was also in meters.
> This card is very much needed.
>
> 4) you explained you want an electron beam. But you have the source
> card set to isotropic at 20 MeV. :-)
>
> 5) You need to set an appropriate upper and lower energy in the USRBDX
> card for binning the optical wavelengths. I usually use 1E-9 to 1E-8
> initially.
>
> 6) You may want to set an OPT-PROP (sdum blank) card to set an index
> of refraction, absorption and diffusion coefficients. This will
> increase the processing time per particle however.
>
> Hope this helps.
>
> --Nick
>
> On Mon, Dec 10, 2012 at 7:11 AM, Vahan Petrosyan
> <vpetrosyan_at_asls.candle.am <mailto:vpetrosyan_at_asls.candle.am>> wrote:
>
> I want to get optical photons distribution (angular, energy) that
> irradiated by Yag screen ( scintillator material Yag(Ce) yttrium
> aluminum garnet ) via USRBDX card when electron beam with 5Mev energy
> hits it.
> http://www.detectors.saint-gobain.com/uploadedFiles/SGdetectors/Documents/Product_Data_Sheets/YAG-Data-Sheet.pdf
>
> I want to define scintillator material properties with fluka using
> OPT-PROD card with SCINT-WV option but fluka gives an error.
> I have never done such kind of simulation and need experts help in
> order
> to do it correctly. I am attached my input file and ask you to
> look and
> say what I did wrong.
>
> btw. I played with parameters of my input file a little and
> switched on
> Cerenkov and Transition(TR-Radia) radiation and disable OPT-PROD card
> with SCINT-WV in order to get some results but USRBDX plot with option
> OPTIPHOT gives me an empty data range.
>
> can someone help me to define correct parameters for scintillator
> material Yag(Ce) and get correct distribution (angular, energy) of
> optical photons via USRBDX card?
> http://en.wikipedia.org/wiki/Yttrium_aluminum_garnet
>
> Thanks!
>
>
>
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<div class="moz-cite-prefix">Many thanks for your help Nick!<br>
<br>
I did corrections that you mention and was able to get nice USRBDX
result for photons but not for optical ones. It still
zeroes.....(:<br>
I am attaching new corrected input file.<br>
<br>
As I understood from your explanation card OPT-PROP (sdum
WV-LIMITS) is optional and card OPT-PROP (sdum SENSITIV ) is used
only for reducing CPU load not for getting more precise
results....?<br>
I switched on also OPT-PROD (sdum SCINT-WV and WV-LIMITS) but
without luck! <br>
I am little confused about WHAT(2) ( "fraction") parameter of
OPT-PROD( sdum SCINT-WV ), is it the same as <em
style="font-weight: bold; font-style: normal; color: rgb(0, 0,
0); font-family: arial, sans-serif; font-size: small;
font-variant: normal; letter-spacing: normal; line-height: 16px;
orphans: 2; text-align: left; text-indent: 0px; text-transform:
none; white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255);">Luminosity
[photons/Mev]???? </em><br>
<br>
How can I get USRBDX distribution of optical photons?<br>
<br>
With regards V. Petrosyan!<br>
<br>
On 10.12.2012 21:44, Nicholas Bolibruch wrote:<br>
</div>
<blockquote
cite="mid:CAKT5vujSqavQWEx0TPcXoRaDDZV-3ewEgNw664fbA+DoWAHX8Q_at_mail.gmail.com"
type="cite">Hi Vahan, <br>
<br>
Here are the issues with your input:<br>
<br>
1) your source is at 20 MeV, and is isotropic. If you test it
with a beam, make sure its in the positive direction, and set the
primaries lower as the processing time is ~2 hrs on an i7 if it's
made directional with your current settings. Using the SENSITIV
sdum on OPT-PROP you can probably lower the OPT-PHOT production
(and reduce CPU load) if you are trying to make other measurements
at the same time in your simulation. <br>
<br>
2) when entering in the wavelengths for the OPT-PROP (sdum
WV-LIMITS) cards you want them in cm, they were all entered in as
meters, you technically don't need them to run the simulation<br>
<br>
3) same issue with OPT-PROD (sdum SCINT-WV), it was also in
meters. This card is very much needed. <br>
<br>
4) you explained you want an electron beam. But you have the
source card set to isotropic at 20 MeV. :-)<br>
<br>
5) You need to set an appropriate upper and lower energy in the
USRBDX card for binning the optical wavelengths. I usually use
1E-9 to 1E-8 initially.<br>
<br>
6) You may want to set an OPT-PROP (sdum blank) card to set an
index of refraction, absorption and diffusion coefficients. This
will increase the processing time per particle however.<br>
<br>
Hope this helps.<br>
<br>
--Nick<br>
<br>
<div class="gmail_quote">
On Mon, Dec 10, 2012 at 7:11 AM, Vahan Petrosyan <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:vpetrosyan_at_asls.candle.am" target="_blank">vpetrosyan_at_asls.candle.am</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
I want to get optical photons distribution (angular, energy)
that<br>
irradiated by Yag screen ( scintillator material Yag(Ce)
yttrium<br>
aluminum garnet ) via USRBDX card when electron beam with
5Mev energy<br>
hits it.<br>
<a moz-do-not-send="true"
href="http://www.detectors.saint-gobain.com/uploadedFiles/SGdetectors/Documents/Product_Data_Sheets/YAG-Data-Sheet.pdf"
target="_blank">http://www.detectors.saint-gobain.com/uploadedFiles/SGdetectors/Documents/Product_Data_Sheets/YAG-Data-Sheet.pdf</a><br>
<br>
I want to define scintillator material properties with fluka
using<br>
OPT-PROD card with SCINT-WV option but fluka gives an error.<br>
I have never done such kind of simulation and need experts
help in order<br>
to do it correctly. I am attached my input file and ask you to
look and<br>
say what I did wrong.<br>
<br>
btw. I played with parameters of my input file a little and
switched on<br>
Cerenkov and Transition(TR-Radia) radiation and disable
OPT-PROD card<br>
with SCINT-WV in order to get some results but USRBDX plot
with option<br>
OPTIPHOT gives me an empty data range.<br>
<br>
can someone help me to define correct parameters for
scintillator<br>
material Yag(Ce) and get correct distribution (angular,
energy) of<br>
optical photons via USRBDX card?<br>
<a moz-do-not-send="true"
href="http://en.wikipedia.org/wiki/Yttrium_aluminum_garnet"
target="_blank">http://en.wikipedia.org/wiki/Yttrium_aluminum_garnet</a><br>
<br>
Thanks!<br>
<br>
</blockquote>
</div>
<br>
<br>
</blockquote>
<br>
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