Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2009, Vol. 20 ›› Issue (1): 42-45 doi: 10.13538/j.1001-8042/nst.20.42-45

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Energy and angular distribution of recoil proton of fast neutron in scintillation fiber: a simulation study

MA Qingli1,* TANG Shibiao2 ZOU Jiwei3   

  1. 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
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MA Qingli, TANG Shibiao, ZOU Jiwei. Energy and angular distribution of recoil proton of fast neutron in scintillation fiber: a simulation study.Nuclear Science and Techniques, 2009, 20(1): 42-45     doi: 10.13538/j.1001-8042/nst.20.42-45

Abstract:

Due to their low cost, big reaction cross-section with neutrons, flexibility, and convenience for long distance data transfer, plastic scintillation fibers (PSF) have been increasingly used as detectors or sensors for high-energy neutron radiography. In this paper, Geant4 Monte Carlo simulation tool was used to obtain some characteristics of energy and angular distributions of recoil protons in plastic scintillation fibers irradiated by fast neutrons. The plastic fiber with BCF-20 as the core and an acrylic outer cladding was used in the simulation. The results show that there is a big range of energy and angular distribution of recoil protons in energies varying inversely with the recoil angle.

Key words: Angular distribution, Energy distribution, Fast neutron, Scintillation fiber