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Title: Rayleigh scattering of linear alkylbenzene in large liquid scintillator detectors

Rayleigh scattering poses an intrinsic limit for the transparency of organic liquid scintillators. This work focuses on the Rayleigh scattering length of linear alkylbenzene (LAB), which will be used as the solvent of the liquid scintillator in the central detector of the Jiangmen Underground Neutrino Observatory. We investigate the anisotropy of the Rayleigh scattering in LAB, showing that the resulting Rayleigh scattering length will be significantly shorter than reported before. Given the same overall light attenuation, this will result in a more efficient transmission of photons through the scintillator, increasing the amount of light collected by the photosensors and thereby the energy resolution of the detector.
Authors:
;  [1] ; ;  [2] ;  [3] ;  [4] ; ; ; ;  [5]
  1. Hubei Nuclear Solid Physics Key Laboratory, Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan 430072 (China)
  2. School of Physics, University of Chinese Academy of Sciences, Beijing 100049 (China)
  3. Institute of Physics and EC PRISMA, Johannes Gutenberg University, 55128 Mainz (Germany)
  4. Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049 (China)
  5. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)
Publication Date:
OSTI Identifier:
22482708
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ATTENUATION; ENERGY RESOLUTION; LIQUID SCINTILLATORS; PHOTONS; RAYLEIGH SCATTERING; SCINTILLATION COUNTERS; UNDERGROUND