Hi,
If what you are trying to score is photon FLUENCE (or another estimator that is based on photon fluence such as DOSE-EQ filtered to PHOTON via AUXSCORE card), then you can set photon production threshold to 9 MeV with EMFCUT card: WHAT(2)=9.0, WHAT(3)=HYDROGEN, WHAT(4)=LAST-MAT, SDUM=PROD-CUT
You should note that this will bias any physics below 9 MeV (e.g. Electron fluencies or even neutron production if you have photo nuclear reactions enabled and a material with a low enough photo-nuclear threshold). If you don't want that to happen, then you would would need to filter USRBIN energy range through 'fluscw.f' subroutine, activated with USERWEIG card, but that is not something I recommend for someone new to Fluka. Alternatively, if you don't need that information as a geometrical map, you could use other estimators such as USRTRACK or USRBDX, where you can set energy limits.
If what you are scoring is photon DOSE, then you would need to filter USRBIN via 'comscw.f' subroutine, activated also with USERWEIG, but again, that is not for beginners.
-Mario
From: <owner-fluka-discuss_at_mi.infn.it<mailto:owner-fluka-discuss_at_mi.infn.it>> on behalf of "juan_at_mail.ustc.edu.cn<mailto:juan_at_mail.ustc.edu.cn>" <juan_at_mail.ustc.edu.cn<mailto:juan_at_mail.ustc.edu.cn>>
Date: Tuesday, January 19, 2016 at 12:50 AM
To: fluka-discuss <fluka-discuss_at_fluka.org<mailto:fluka-discuss_at_fluka.org>>
Subject: [fluka-discuss]: score the photon whose energy > 9 MeV
I am new to Fluka so maybe the answer should be obvious.
I want to score the photon whose energy > 9 MeV, but I only know how to use USRBIN to score the photons of all energy. What should I do?
Thanks,
L.J. HE
__________________________________________________________________________
You can manage unsubscription from this mailing list at
https://www.fluka.org/fluka.php?id=acc_info
Received on Wed Jan 20 2016 - 00:09:04 CET