Eur. Phys. J. A (2021) 57: 310
https://doi.org/10.1140/epja/s10050-021-00610-9

Regular Article - Experimental Physics

Measurement of relative differential cross sections of the neutron-deuteron elastic scattering for neutron energy from 13 to 52 MeV

¹ State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871, Beijing, China
² Institute of High Energy Physics, Chinese Academy of Sciences (CAS), 100049, Beijing, China
³ Spallation Neutron Source Science Center, 523803, Dongguan, China
⁴ State Key Laboratory of Particle Detection and Electronics, Beijing, China
⁵ School of Physics and Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, 100191, Beijing, China
⁶ University of Chinese Academy of Sciences, 100049, Beijing, China
⁷ Institute of Materials, China Academy of Engineering Physics, 621907, Jiangyou, China
⁸ Department of Modern Physics, University of Science and Technology of China, 230026, Hefei, China
⁹ Key Laboratory of Nuclear Data, China Institute of Atomic Energy, 102413, Beijing, China
¹⁰ Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, 621900, Mianyang, China
¹¹ Northwest Institute of Nuclear Technology, 710024, Xi’an, China
¹² Department of Engineering and Applied Physics, University of Science and Technology of China, 230026, Hefei, China
¹³ School of Physics, Beihang University, 100083, Beijing, China

^d guohuizhang@pku.edu.cn
^e fanrr@ihep.ac.cn

Received: 6 August 2021
Accepted: 9 October 2021
Published online: 11 November 2021

Abstract

The measurement of the relative differential cross sections of the neutron-deuteron ( elastic scattering, i.e., the H(n, el)H reaction, for 12 neutron energies from 13.56 MeV to 52.48 MeV has been carried out at the Back-n White Neutron Source of the China Spallation Neutron Source (CSNS). By detection of the recoil deuterons using the light charged particle detector array (LPDA) system, the relative differential cross sections of the neutrons in the center-of-mass frame were obtained and then compared with previous measurements, the theoretical calculations performed using the Nijmegen I nucleon-nucleon potential in the Faddeev formalism, and the evaluated from libraries including the ENDF-B/VIII.0, JEFF-3.3, JENDL-4.0, CENDL-3.2, and FENDL-3.2. The present work was the first measurement relative differential cross sections of the n-d scattering for the 30 MeV 60 MeV neutron energy range using a white neutron source.