Numerical simulation of high-energy neutron radiation effect of scintillation fiber  

作　　者：MA Qingli TANG Shibiao ZOU Jiwei 

机构地区：[1]Electronics Department, Electronic Engineering Institute, Hefei 230038, China [2]Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [3]Department of Scientific Research, Electronic Engineering Institute, Hefei 230038, China

出　　处：《Nuclear Science and Techniques》2008年第4期236-240,共5页核技术（英文）

基　　金：National Natural Science Foundation (No60602065)

摘　　要：Due to their low cost,flexibility,and convenience for long distance data transfer,plastic scintillation fibers (PSF) have been increasingly used in building detectors or sensors for detecting various radiations and imaging. In this paper,GEANT4 Monte Carlo simulation tool was used to obtain some radiation effects of PSF under high-energy neutron irradiation. BCF-20,a plastic fiber material,produced by Saint-Gobain,was used in the simulation. The fiber consists of a core scintillating material of polystyrene and an acrylic outer cladding. Incident neutrons produce energy deposition in fiber through neutron induced recoil proton events. The relationships between energy deposition efficiency and fiber length,fiber radius and incident neutron energy are presented. The variation with those parameters and parameter selection are also analyzed.Due to their low cost, flexibility, and convenience for long distance data transfer, plastic scintillation fibers （PSF） have been increasingly used in building detectors or sensors for detecting various radiations and imaging. In this paper, GEANT4 Monte Carlo simulation tool was used to obtain some radiation effects of PSF under high-energy neutron irradiation. BCF-20, a plastic fiber material, produced by Saint-Gobain, was used in the simulation. The fiber consists of a core scintillating material of polystyrene and an acrylic outer cladding. Incident neutrons produce energy deposition in fiber through neutron induced recoil proton events. The relationships between energy deposition efficiency and fiber length, fiber radius and incident neutron energy are presented. The variation with those parameters and parameter selection are also analyzed.

关 键 词：核爆炸 辐射作用 高能量中子 纤维 

分 类 号：TL91[核科学技术—核技术及应用]