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Measurement of the Attenuation Length of a Liquid Scintillator for the Detection of Reactor Neutrinos

원전 중성미자 검출을 위한 액체섬광검출용액의 감쇄거리 측정

  • Park, Young Seo (Institute for Universe & Elementary Particles, Department of Physics, Chonnam National University) ;
  • Kim, Seung Chan (Institute for Universe & Elementary Particles, Department of Physics, Chonnam National University) ;
  • Joo, Kyung Kwang (Institute for Universe & Elementary Particles, Department of Physics, Chonnam National University)
  • 박영서 (전남대학교 물리학과, 우주소립자 연구소) ;
  • 김승찬 (전남대학교 물리학과, 우주소립자 연구소) ;
  • 주경광 (전남대학교 물리학과, 우주소립자 연구소)
  • Received : 2017.03.10
  • Accepted : 2017.05.31
  • Published : 2017.07.31

Abstract

The antielectron neutrino is emitted during fission in a reactor. Through an inverse beta-decay reaction (${\bar{\nu}}_e+p{\rightarrow}e{^+}+n$, IBD), the positron and the neutron generated in the liquid scintillator will be detected by using the time difference between the prompt signal and the delayed signal. During this process, light will travel a certain distance to reach the photomultiplier tube, so measurements of the optical and the physical properties of the liquid scintillator are very important. For that reason, a precise measurement of the attenuation length in a liquid scintillator is needed. This paper briefly describes a device for measuring the attenuation length in a liquid scintillator and presents the results of those measurements.

Acknowledgement

Supported by : 한국연구재단, Samsung Science & Technology Foundation