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MCNP

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Oursgenial

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Aug 19, 2008, 5:22:54 PM8/19/08
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I have some problems with simulation program Monte Carlo MCNP:
I use this program to evaluate the energy lost by photons and electrons
in water. The source is a unidirectional high energy photons (
vertically, from up to down. I use the tallie F8.
During simulation, there is none electron production.
The output file there is no Compton scattering.

I write this code to command simulation:

SDEF POS=0 0 123 ERG=1.5 PAR=2 VEC=0 0 1 DIR=-1
MODE P E
PHYS:P 100 1 1
*F8: p,e 4 88i 93

The question is: do you see the mistake?
I thank you for your help.

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