The MCNPX and MCNP5C codes are used to simulate the reaction
9Be(p,n)9B. The photons and neutrons intensities resulting of this reaction are
calculated as a functions of the 9Be target thickness. To calculate this intensity,
the protons with energ
y 15.0MeV and protons current 200.0μA are used. In
addition, the angular distribution of the emitted photons and neutrons from the
reaction 9Be(p,n)9B is calculated as a function of the 9Be target thickness. The
maximum value of the photons and neutrons flux is found to be at angle 00 for
thin targets. The calculated values using MCNPX of the neutrons spectrum
emission from reactions of 9Be(p,n)9B and 207Pb(p,n) is compared to
experimental values. There is a good agreement between them.