14.6MeV中子的^(56)Fe(n,p)^(56)Mn反应截面  

THE ^(56)Fe(n,p)^(56)In CROSS SECTION OF 14.6MeV NEUTRON

作　　者：刘圣康[1] 韩民[1] 周永义 徐其高[1] 张治平[1] 

机构地区：[1]南京大学物理系

出　　处：《南京大学学报（自然科学版）》1993年第1期25-33,共9页Journal of Nanjing University（Natural Science）

基　　金：中国核数据中心资助

摘　　要：本文评价了14.6MeV中子的^(56)Fe(n,p)^(56)Mn反应截面,评价值为(109.6±0.6)×10^(-27)cm^2。又报告了利用我校400kV高压倍加器D-T中子源的测量工作。中子通量密度是用^(27)Al(n,p)^(27)Mg和^(63)Cu(n,2n)^(62)Cu反应截面进行刻度的。^(56)Mn的Υ放射性是利用NaI谱仪和高纯锗多道谱仪进行测量的。经修正后的测量结果为(110.7±1.9)×10^(-27)cm^2,在误差围内与评价值相符。The ^(56)Fe(n,p)^(56)Mn cross section of 14.6MeV neutron has been evaluated. The evaluated value is (109.6±0.6)×10^(-27)cm^2.That we make use of D-T neutron source of 400kV Cockroft-Walton accelerator in Nanjing University to measure this cross section also has been reported. The neutron flux density was calibrated by the cross setion of ^(27)Al(n,p)^(27)Mg and ^(63)Cu(n,2n)^(62)Cu. The Υ-activity of ^(56)Mn was measured by NaI(T1) scintillation spectrometer and HPGe-multichannel analyser. The measured result with correction is (110.7±1.9)×10^(-27)cm^2. It is in good agreement with evaluated data within the extent of the experiment error.

关 键 词：反应截面 中子 铁原子核 锰原子核 

分 类 号：O571.55[理学—粒子物理与原子核物理]