Abstract
Nucleon (N) and triton production from nucleon-induced reactions on 7 Li at an incident energy of 14 MeV are analyzed by using three-body continuum discretized coupled channels method (CDCC), final state interaction (FSI) model, and sequential decay (SD) model. The CDCC is used to describe nucleon and triton production via breakup continuum channels, 7 Li(N,N′)7 Li*→ t + α . Triton production from p (n ) + 7 Li → t + 5 Li(5 He) channel and nucleon production from sequential decay of the ground-state 5 Li(5 He) are calculated by the FSI model and the SD model, respectively. The calculated double differential cross sections for both nucleon and triton production are in good agreement with experimental ones except at relatively low nucleon emission energies.
Highlights
In fusion technology, lithium is an important element for tritium breeding in D-T fusion reactors [1] as well as a candidate material for neutron converter in the intense neutron source of International Fusion Materials Irradiation Facility (IFMIF) [2]
The proton and triton emission DDXs from the breakup channel (a) in proton induced reactions on 7Li are calculated within the framework of continuum discretized coupled channels method (CDCC)
The underestimation is caused by neglecting the other reaction channels including the reaction channel (b) which cannot be calculated with the present CDCC as discussed later
Summary
Lithium is an important element for tritium breeding in D-T fusion reactors [1] as well as a candidate material for neutron converter in the intense neutron source of International Fusion Materials Irradiation Facility (IFMIF) [2]. Ichinkhorloo et al [4] have applied three-body continuum discretized coupled channels method (CDCC)[5, 6] with the JLM N-N interaction [7] to n +7Li scattering for incident energies below 24 MeV Their result reproduces well experimental angular distributions for neutron elastic and inelastic scattering from 7Li and double differential (n, xn) cross sections at relatively high emission energies for incident energies between 11.5 and 24.0 MeV.
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