摘要
用93Nb(n,2n)92mNb和90Zr(n,2n)89m+gZr截面比法测定中子能量,以93Nb(n,2n)92mNb反应截面作中子注量标准,用活化法测量了13.5—14.6 MeV中子引起的89Y(n,2n)88Y的反应截面值。由(13.5±0.3),(14.1±0.2),(14.6±0.3)MeV中子引起的89Y(n,2n)88Y反应截面值分别为(759±42),(835±42)和(958±53)mb。
Cross section for （n, 2n） reaction on Yttrium have been measured at energy of 14 MeV neutrons from H（d, n）He by using activation technique. The ^93Nb（n, 2n）^92mNb reaction was used to monitor the neutron fluence, HPGe detector was used to detect the γ-rays. The cross section of ^89Y （n, 2n）^88Y reaction are 759 ± 42, 835 ±42, 958 ±53 mb for neutron energy 13.5 ±0.3, 14.1±0.2, 14.6 ±0.3 MeV, respectively.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2006年第2期127-129,共3页
Nuclear Physics Review
关键词
钇
快中子
反应截面
活化法
放射性活度
yttrium
fast neutron
cross section
activation
gamma ray activity
