摘要
在飞行时间谱仪测量中子能谱的基础上,利用238U裂变电离室测量了中国原子能科学研究院HI-13串列加速器产生的25.5 MeV中子注量率。为验证该裂变电离室测量快中子注量率的可靠性,在中国原子能科学研究院5SDH-2串列加速器上,利用该电离室和伴随α粒子装置同时测量14.8 MeV中子注量率,结果在不确定度范围内一致。
Based on the neutron energy spectrum measured with a time-of-flight neutron spectrometer, the 25.5 MeV neutron fluence rate was measured with ^238U fission chamber at the HI-13 tandem accelerator in CIAE （China Institute of Atomic Energy）. To verify the reliability of the fission chamber for measuring fast neutron fluence rate, the 14.8 MeV neutron fluence rate was measured simultaneously with the fission chamber and the association α particle instrument at the 5SDH-2 tandem accelerator in CIAE, of which results are coincident within the uncertainties.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2009年第2期124-127,共4页
Atomic Energy Science and Technology
关键词
^238U裂变电离室
中子注量率
中子飞行时间谱仪
中子能谱
伴随α粒子装置
^ 238U fission chamber
neutron fluence rate
time-of-flight neutron spectrometer
neutron energy spectrum
association α particle instrument
