Ground-state and isomeric-state cross sections for the 165 Ho( n ,2 n ) 164 Ho reaction from reaction threshold to 20 MeV
Ground-state and isomeric-state cross sections for the 165 Ho( n ,2 n ) 164 Ho reaction from reaction threshold to 20 MeV
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DOI：
10.1103/physrevc.89.014604
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发表时间：
2014-01
影响因子：
3.1
通讯作者：
Junhua Luo;Li Jiang
中科院分区：
文献类型：
--
作者：
Junhua Luo;Li Jiang
利用活化技术，在13.5 MeV和14.8 MeV两个中子能量下测量了反应Ho($n$，2$n$)Ho的截面，以解决现有数据库中的不一致问题。用高分辨率高纯锗探测器分别记录了Ho同质异构态和Ho基态衰变产生的94keV和91.39keV的数学伽马射线。单能中子束是通过H($d$，$n$)He反应产生的。在中子能量从反应阈值到20 MeV变化的情况下，使用不同能级密度选项的Talys-1.4核模型代码也估算了截面。文中还对结果进行了讨论，并与文献中的一些相应值进行了比较。
By using the activation technique, the cross section for the reaction Ho($n$,2$n$) Ho was measured at two neutron energies of 13.5 and 14.8 MeV to resolve inconsistencies in the existing database. The 94- and 91.39-keV \ensuremath{\gamma} rays from the decay of the Ho${}^{m}$ isomeric state and Ho${}^{g}$ ground state, respectively, were recorded with a high-resolution high-purity germanium detector. The monoenergetic neutron beam was produced via the H($d$,$n$) He reaction. The cross sections also were estimated with the talys-1.4 nuclear model code that uses different level-density options at neutron energies that vary from the reaction threshold to 20 MeV. Results are also discussed and are compared with some corresponding values found in the literature.