https://doi.org/10.1140/epja/s10050-020-00136-6
Regular Article – Experimental Physics
Ground-state and isomeric-state cross-sections for 
Se(n,2n)
Se reaction in the 13–15 MeV energy region
1
Institute of New Energy, Hexi University, Zhangye, 734000, China
2
School of Physics and Electromechanical Engineering, Hexi University, Zhangye, 734000, China
3
Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics, Mianyang, 621900, China
* e-mail: luojh71@163.com
Received:
14
January
2020
Accepted:
2
April
2020
Published online:
4
May
2020
Activation technique was applied for the measurement of ground-state and isomeric-state cross-sections in the Se(n,2n)Se reaction within the 13–15 MeV neutron energy range to resolve inconsistencies in the existing database. 
rays with energy of 253.7 keV from the decay of the 
Se isomeric-state and energy of 361.2 keV from the 
Se ground state were recorded using a high-resolution high-purity germanium (HPGe) detector. A monoenergetic neutron beam was produced via the T(d,n)
He. The cross-sections and isomeric ratios were also calculated using the TALYS-1.95 nuclear model code with different six-level density options at neutron energies varying from the reaction threshold to 20 MeV. Results are discussed and also compared with some corresponding values found in the literature.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
