“…The 3 He(n, p) 3 H cross section at thermal energies has been determined with high precision by the total cross section of Als-Nielsen and Dietrich [13]. Measurements at higher neutron energies have been reported by Coon [14], Batchelor, Aves, and Skyrme [15], Sayres, Jones, and Wu [16], Costello, Friesenhahn, and Lopez [17], and Borzakov et al [18]. Ratios of the 3 He(n, p) 3 H cross section to the 6 Li(n, α) and 10 B(n, α) cross sections have been measured by Bergman and Shapiro [19] (E n ≤ 30 keV) and Bowman et al [20] (E n ≤ 25 keV), respectively.…”