Eur. Phys. J. A (2022) 58: 80
https://doi.org/10.1140/epja/s10050-022-00720-y

Regular Article - Experimental Physics

Determination of (n,2n) reaction cross-section for ¹⁵⁴Sm, ¹⁵⁰Nd and ⁸²Se at 14.6 MeV neutron energy

¹ Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Mumbai, India
² Homi Bhabha National Institute, Anushaktinagar, 400094, Mumbai, India
³ Nuclear Physics Division, Bhabha Atomic Research Centre, 400085, Mumbai, India
⁴ Technical Physics Division, Bhabha Atomic Research Centre, 400085, Mumbai, India

^a nstawade@barc.gov.in

Received: 9 November 2021
Accepted: 31 March 2022
Published online: 30 April 2022

Abstract

The (n,2n) reaction cross-sections of ¹⁵⁴Sm, ¹⁵⁰Nd and ⁸²Se isotopes at 14.6 MeV neutron energy have been measured by neutron activation followed by off-line gamma-ray spectrometry with improved experimental methodology. The neutron flux was determined using the ¹⁹⁷Au(n, 2n)¹⁹⁶Au^g monitor reaction which has not been used earlier for cross-section measurement for the above mentioned nuclei. The measured reaction cross-sections are found to have good agreement with calculated cross-section data, obtained independently, using Talys and ENDF codes. A detailed comparison of the present cross-section data with the existing literature has been presented in this paper.