Modular total absorption spectrometer
Modular total absorption spectrometer
复制标题
模块化全吸收光谱仪
DOI：
10.1016/j.nima.2016.08.046
复制
发表时间：
2016
影响因子：
1.4
通讯作者：
E. Zganjar
中科院分区：
文献类型：
--
作者：
M. Karny;K. Rykaczewski;A. Fijałkowska;B. Rasco;M. Wolińska;R. Grzywacz;K. C. Goetz;D. Miller;E. Zganjar
介绍了橡树岭国家实验室建造和调试的模块化全吸收光谱仪的设计和性能。探测器的有效体积约为1吨NaI（Tl），这导致在6 MeV处的71%的非常高的全γ能量峰值效率和在300 keV和1 MeV之间的低能γ射线的81.5%左右的几乎平坦的效率。除了高峰效率外，探测器的模块化结构允许在数据分析和β缓发中子观测中使用γ符合技术。
The design and performance of the Modular Total Absorption Spectrometer built and commissioned at the Oak Ridge National Laboratory is presented. The active volume of the detector is approximately one ton of NaI(Tl), which results in very high fullγenergy peak efficiency of 71% at 6 MeV and nearly flat efficiency of around 81.5% for low energyγ-rays between 300 keV and 1 MeV. In addition to the high peak efficiency, the modular construction of the detector permits the use of aγ-coincidence technique in data analysis as well asβ-delayed neutron observation.