Abstract
Double-differential thick target neutron yields from LiF, C, Si, Ni, Mo, and Ta targets bombarded by 13.4-MeV deuterons were measured by using an EJ-301 liquid organic scintillator at the Center for Accelerator and Beam Applied Science, Kyushu University. The measured (d, xn) spectra were compared with the (t, xn) spectra measured by the other group at the same incident energy per nucleon (6.7 MeV/u) and theoretical model calculations by Particle and Heavy Ion Transport code System (PHITS) and DEUteron-induced Reaction Analysis Code System (DEURACS). Some bumps are observed in the (d, xn) spectra for low-Z target elements, while no specific structure was seen in the (t, xn) spectra. The PHITS calculation, in which the intra-nuclear cascade of Liége (INCL) and generalized evaporation model (GEM) were used, generally overestimates neutron spectra while the DEURACS calculation agrees with experimental ones fairly well.
Highlights
As a candidate for intense neutron sources for nuclear applications, accelerator-based neutron sources using deuteron-induced reactions have been proposed in recent years
Irradiation Facility (IFMIF), neutron beams generated by the Li(d, xn) reactions will be utilized in various irradiation tests for research and development of fusion reactors [1]
Systematic estimation of neutron yields from the whole neutron source including accelerator is important because neutrons are produced from neutron converters made of light nuclei such as Li, Be, and C and from structural materials of the accelerator
Summary
As a candidate for intense neutron sources for nuclear applications, accelerator-based neutron sources using deuteron-induced reactions have been proposed in recent years. Irradiation Facility (IFMIF), neutron beams generated by the Li(d, xn) reactions will be utilized in various irradiation tests for research and development of fusion reactors [1]. In these neutron sources, systematic estimation of neutron yields from the whole neutron source including accelerator is important because neutrons are produced from neutron converters made of light nuclei such as Li, Be, and C and from structural materials of the accelerator. We validated the theoretical nuclear reaction models implemented in PHITS and DEURACS by comparing their predictions with the measured (d, xn) spectra
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