New approach to description of (d,xn) spectra at energies below 50MeV in Monte Carlo simulation by intra-nuclear cascade code with Distorted Wave Born Approximation
Résumé
A new approach to describing neutron spectra of deuteron-induced reactions in the Monte Carlo simulation
for particle transport has been developed by combining the Intra-Nuclear Cascade of Liège (INCL) and
the Distorted Wave Born Approximation (DWBA) calculation. We incorporated this combined method
into the Particle and Heavy Ion Transport code System (PHITS) and applied it to estimate (d,xn) spectra
on natLi, 9Be, and natC targets at incident energies ranging from 10 to 40 MeV. Double differential cross
sections obtained by INCL and DWBA successfully reproduced broad peaks and discrete peaks, respectively,
at the same energies as those observed in experimental data. Furthermore, an excellent agreement
was observed between experimental data and PHITS-derived results using the combined method in thick
target neutron yields over a wide range of neutron emission angles in the reactions. We also applied the
new method to estimate (d,xp) spectra in the reactions, and discussed the validity for the proton emission
spectra.