Measurement of 232Th(n, γ) and 232Th( ${n}, {2n}$ ) cross-sections at neutron energies of 13.5, 15.5 and 17.28 MeV using neutron activation techniques

Determination of neutron capture cross sections of 232 Th at 14.1 MeV and 14.8 MeV using the neutron activation method

“…It can be seen from Table 2, our measured results are in good agreement with the literature data [19] but much lower than [20]. For purpose of comparison, the 232 Th(n,γ) 231 Th reaction cross sections from the present work and the similar experimental data from the literatures [21][22][23][24][25][26][27] were plotted in Fig. 1 together with the evaluated data [4][5][6] as well as the theoretical values from computer code TALYS1.6…”

“…The cross sections of the 232 Th(n,γ) 233 Th reaction measured in the present work and the values around neutron energy 14 MeV given in the literature are summarized in Table 2 together with the cross section of the monitor reaction 27 Al(n,α) 24 Na. In the calculations, the cross sections for the 27 Al(n,α) 24 Na monitor reaction were obtained by interpolating the evaluated values from the literature [12].…”

“…The cross section measured in the present work and the values around neutron energy 14 MeV given in the literatures were summarized in Table 2 together with the cross section of the monitor reaction 27 Al(n,α) 24 Na. In the calculations, the cross Submitted to 'Chinese Physics C' 6 sections for the 27 Al(n,α) 24 Na monitor reaction were obtained by interpolating the evaluated values of the literature [12]. It can be seen from Table 2, our measured results are in good agreement with the literature data [19] but much lower than [20].…”

“…During irradiation, the neutron flux was determined using the monitor reaction 27 Al(n, α) 24 Na, and the variation of the neutron yield was monitored by accompanying α-particles so that the corrections could be made for the fluctuation of neutron flux. The schematic view of the accompanying α-particle monitor was the same as shown in Ref.…”

“…The neutron energies in these positions were calculated by the Q equation [7] and compared with the method of cross-section ratios for 90 Zr(n,2n) 89m+g Zr and 93 Nb(n,2n) 92m Nb reactions [8,9] before irradiation. The determined neutron energy During irradiation, the neutron flux was determined using the monitor reaction 27 Al(n,α) 24 Na, and the variation of the neutron yield was monitored by accompanying α-particles so that the corrections could be made for the fluctuation of neutron flux.…”