Dear FLUKA experts,
I'm scoring energy spectra of photons, emitted by 200 MeV electrons focused in water. I'm particularly interested in photons at 20 cm depth. For that I defined 0.01 cm thin volume within water cube by using XYP plane. To score energy of photons I chose tabs USRTRACK with AUXSCORE for that volume. The results I've got are fine however I wanted see if USRBDX will give me the same spectra. I specified boundaries to cover the same region as in USRTRACK (also I added AUXSCORE command to score exatly energy of photons). The results I normalized (according to manual) as follows:
USRTRACK = Y(axis) * energy bin (I get rid of 'per GeV')* number of particles (I get rid of 'per primary'), so I get fluence in cm^{-2}
USRBDX = Y(axis)* energy bin*2pi (because I requested one way scoring) *number of particles.
The results I've got are:
USRBDX 1. ENERGY -34. TARGET TARGET6 100.usrbdx_his
USRBDX 0.2 0.1 200. 0.0 1. &
[X]
USRTRACK 1. ENERGY -30. TARGET6 100. 400.histogram6
USRTRACK 0.2 0.1 &
[X]
I would like to ask how can I explain difference between these two spectra? I have noticed that whenever I change the thickness of my volume fluence increases in USRTRACK. So how thick should be my scoring volume to get the same results as for USRBDX?
Thank you,
Karolina
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Received on Thu Aug 11 2016 - 21:53:18 CEST