Measurements of neutron-induced light-charged particle emission reactions

¹ State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
² Frank Laboratory of Neutron Physics, JINR, Dubna 141980, Russia
³ Nuclear Research Centre, National University of Mongolia, Ulaanbaatar, Mongolia
⁴ Sate Key Laboratory of Particle Detection and Electronics
⁵ Institute of High Energy Physics, Chinse Academy of Sciences (CAS), Beijing 100049, China
⁶ Spallation Neutron Science Center, Dongguan 523803, China
⁷ Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
⁸ Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China
⁹ Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
¹⁰ Northwest Institute of Nuclear Technology, Xi'an 710024, China
¹¹ University of Chinese Academy of Sciences, Beijing 100049, China
¹² Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China
¹³ Beihang University, Beijing 100083, China

^* e-mail: guohuizhang@pku.edu.cn

Published online: 30 September 2020

Abstract

In the past two decades cooperating with Frank Laboratory of Neutron Physics (FLNP), Joint Institute for Nuclear Research (JINR) measurements of (n, α) reaction cross sections for ⁶Li, ¹⁰B, ²⁵Mg, ³⁹K, ⁴⁰Ca, ^54,56,57 Fe, ⁵⁸Ni, ⁶³Cu, ^64,67 Zn, ⁹⁵Mo, ¹⁴³Nd and ^147,149 Sm nuclei were performed in the MeV neutron energy region based on the 4.5 MV Van de Graaff accelerator at Peking University. In recent years, our measurements were extended in three aspects. Firstly, measurements were expanded from two-body reactions to three-body reactions such as ¹⁰B (n, t2 α). Secondly, the neutron energy region was extended from below 8 MeV to 8 - 11 MeV by using the HI-13 tandem accelerator of China Institute of Atomic Energy (CIAE), with which cross sections of ^54,56 Fe(n, α)^53,51Cr reactions were measured. Thirdly, based on the newly-built China Spallation Neutron Source (CSNS) Back-n WNS (White Neutron Source), differential and angle-integrated cross sections for ⁶Li(n, t) and ¹⁰B(n, α) reactions were measured in the neutron energy region from 1 eV to 3 MeV.