Hello everyone!
I am trying to obtain results for the neutron, gamma/photon fluence,
ambient dose-eq and etc. for the following simple spherical configuration
- 2.5 m thick spherical shell, filled with Portland concrete. I have a 18F
liquid target irradiated by a 24MeV proton beam. The shell is divided into
layers and as one can imagine the statistics in the outer layers is very
poor. Thus, I decided to use biasing technique. I saw that the integrated
neutron fluence usually drops about 2 times per layer and thus I decided
to increase the importance of the layers by factor of two. Is this a
correct approach? Am I disturbing the simulation and thus obtaining false
results? I applied the same factor for the photons too. I would appreciate
any advice.
Thank you in advance!
Best regards,
Angel
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Received on Mon Jun 10 2019 - 15:37:39 CEST