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Measurement of differential and angle-integrated cross sections for the 10B(n, α)7Li reaction from 0.3 eV to 3.0 MeV at CSNS Back-n
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Abstract
In the present work, new measurements of differential and angle-integrated cross sections for the 10B(n, α1)7Li*, 10B(n, α0)7Li and 10B(n, α)7Li reactions were performed at CSNS Back-n white neutron source. The Light-charged Particle Detector Array (LPDA) system was used to detect the charged particles. The 6Li-Si monitor was employed to measure the neutron flux. The differential cross sections for the 10B(n, α)7Li reaction were obtained from 20.2o to 158.7o (13 angles) in the neutron energy region from 0.3 eV to 3.0 MeV (70 energy points). The differential cross sections for the 10B(n, α0)7Li and 10B(n, α1)7Li* reactions were also obtained at the same angular positions in the neutron energy region from 0.3 eV to 1.0 MeV (65 energy points). Fitting with the Legendre polynomial series, the angle-integrated cross sections of these three reactions were obtained through integration. The experimental data for these three reactions across such a wide neutron energy range are valuable references for future nuclear data evaluations.
Title: Measurement of differential and angle-integrated cross sections for the 10B(n, α)7Li reaction from 0.3 eV to 3.0 MeV at CSNS Back-n
Description:
Abstract
In the present work, new measurements of differential and angle-integrated cross sections for the 10B(n, α1)7Li*, 10B(n, α0)7Li and 10B(n, α)7Li reactions were performed at CSNS Back-n white neutron source.
The Light-charged Particle Detector Array (LPDA) system was used to detect the charged particles.
The 6Li-Si monitor was employed to measure the neutron flux.
The differential cross sections for the 10B(n, α)7Li reaction were obtained from 20.
2o to 158.
7o (13 angles) in the neutron energy region from 0.
3 eV to 3.
0 MeV (70 energy points).
The differential cross sections for the 10B(n, α0)7Li and 10B(n, α1)7Li* reactions were also obtained at the same angular positions in the neutron energy region from 0.
3 eV to 1.
0 MeV (65 energy points).
Fitting with the Legendre polynomial series, the angle-integrated cross sections of these three reactions were obtained through integration.
The experimental data for these three reactions across such a wide neutron energy range are valuable references for future nuclear data evaluations.
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