Empty USRBIN scoring

I am trying to obtain DoseEg/Cartesian binning, outside the concrete shield.
My results are zero.
Kindly suggest corrections. My input file is attached0810RAK.inp (3.5 KB)

Dear Raksha,

first there is a geometry error in your input: The det1 sphere is not subtracted from the VOID region.

Second, you are simulating a 1.25 MeV isotropic photon beam with more them 1 meter of concrete shielding around it. In this case (unless there is a penetration I can’t see) the result should be zero (or infinitesimally low) at the location of you scorings.


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A post was split to a new topic: Problem with geometry using ARB