A novel 4π Gd-loaded liquid scintillator detection system  

作　　者：于国梁 董连洁 侯龙 卢翰林 唐洪庆 

机构地区：[1]Department of Mathematics and Physics, North China Electric Power University [2]College of Science, Agriculture University of HeBei [3]Institute of Nuclear Physics, China Institute of Atomic Energy

出　　处：《Nuclear Science and Techniques》2014年第5期47-52,共6页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China(No.11375063);the Fundamental Research Funds for the Central Universities(No.13QN59)

摘　　要：With a Geant4 software package based on the Monte Carlo method, a multi-cell 4π detection system is designed, which consists of 40 Gadolinium-loaded liquid scintillation detectors. These detectors, associated with a fission chamber in its geometrical center, constitute a platform. This platform is mainly used for the measurement of a fissionable nucleus(n, 2n) reaction cross section. In order to properly determine the experimental set-up, we carry out a systematic numerical simulation using our model which is established by the Geant4 software package. This work provides rich and valuable reference data for experiments on the fissionable nucleus(n, 2n) cross section measurement in the future.With a Geant4 software package based on the Monte Carlo method, a multi-cell 4π detection system is de- signed, which consists of 40 Gadolinium-loaded liquid scintillation detectors. These detectors, associated with a fission chamber in its geometrical center, constitute a platform. This platform is mainly used for the measure- ment of a fissionable nucleus （n, 2n） reaction cross section. In order to properly determine the experimental set-up, we carry out a systematic numerical simulation using our model which is established by the Geant4 soft- ware package. This work provides rich and valuable reference data for experiments on the fissionable nucleus （n, 2n） cross section measurement in the future.

关 键 词：检测系统 液体闪烁体 液体闪烁探测器 GEANT4 蒙特卡洛方法 实验设置 断面测量 裂变室 

分 类 号：TL812[核科学技术—核技术及应用]