Solid Angle in USERBDX

From: Reza Taleei <>
Date: Sat Jun 14 2008 - 14:01:18 CEST

Dear Fluka-users,

I would like to calculate Neutron fluence in 30 degree angle. I have
written the following USRBDX card which calculates neutron fluence from
PI/6 up to (PI/6)+0.003 but I just get zero fluence. In the same problem I
can get the desired results by the same card but from 0 up to 0+0.03 solid
angle. Do I have misunderstandings in the definition of solid angle. AI3
and AI4 are two spheres. Thank you in advance for your help.

Best regards,
Reza Taleei.

USRBDX 1.0 NEUTRON -25.0 AI4 AI3 1.0Fne30
USRBDX 0.03 0.0 100.0.526598775.523598775 1.0&
Received on Sat Jun 14 14:19:37 2008

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