Dear experts,
I am currently focused on estimating the shielding required for a target
room for radiobiological studies. Hence, I would like to calculate the
PHOTONS and DOSE-EQ due to neutrons and photons produced after irradiating
a water sample with a 50 MeV proton beam.
After reading the manual, I have found out that biasing should be used in
order to calculate the generation of photons and the use of the BIASING
card is recommended. Therefore, I have set this card for all regions and
photon particle.
BIASING -1. PHOTON
I do not have any experience on biasing and I would be grateful if you
could advice me if any other card would be needed in order to have accurate
results. I read that LAM-BIAS and EMF-BIAS are recommended for electron
accelerators but not sure about protons.
I do not really understand why a biasing card is needed in order to obtain
an accurate photon flux when the neutron flux, of a similar order of
magnitude, is not necessary to be biased.
Thank you for your time
Monica Huerta
--
Monica Huerta Parajon
Proton Beam Applications group
Edificio Cosimet
Paseo de Landabarri, 2, Planta 1
48940 Leioa - Spain
http://www.essbilbao.org
Tfno.: +34 946 07 66 41
mhuerta_at_essbilbao.org
Received on Mon Feb 18 2013 - 18:18:26 CET