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Production and optical properties of Gd-loaded liquid scintillator for the RENO neutrino detector
- Authors
- Park, J. S.; Lee, J.; Yeo, I. S.; Choi, W. Q.; Ahn, J. K.; Choi, J. H.; Choi, S.; Choi, Y.; Jang, H. I.; Jang, J. S.; Jeon, E. J.; Joo, K. K.; Kim, B. R.; Kim, H. S.; Kim, J. Y.; Kim, S. B.; Kim, S. Y.; Kim, W.; Kim, Y. D.; Lee, J. H.; Lee, J. K.; Lim, I. T.; Ma, K. J.; Pac, M. Y.; Park, I. G.; Park, K. S.; Siyeon, K.; So, S. H.; Stepanyan, S. S.; Yu, I.
- Issue Date
- Apr-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Gadolinium-loaded liquid scintillator (GdLS); LAB; RENO; theta(13); Neutrino oscillation; Reactor neutrino experiment
- Citation
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.707, pp 45 - 53
- Pages
- 9
- Journal Title
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
- Volume
- 707
- Start Page
- 45
- End Page
- 53
- ISSN
- 0168-9002
1872-9576
- Abstract
- Reactor experiment for neutrino oscillation (RENO) began data-taking from August 2011. It successfully observed reactor antineutrino disappearance in April 2012 to measure the smallest mixing angle of theta(13). Two identical detectors, one at near location and the other at far location, are constructed at the Yonggwang nuclear power plant in South Korea, to compare the observed reactor neutrino fluxes. Each RENO detector is filled with 16 mass tons of Gadolinium loaded liquid scintillator (GdLS) in the neutrino target region, and with 28 mass tons of unloaded liquid scintillator (LS) in the gamma-catcher region surrounding the target. LS was developed to satisfy chemical, physical, optical properties, and safety requirements. Linear alkyl benzene (LAB) was chosen as a solvent because of its high flash-point, sufficient light yield, and being environmentally friendly. GdLS is carefully developed to keep a long attenuation length and high light yield for a long time period. In this paper, we report the characteristics and mass production of the RENO LS and GdLS. (C) 2013 Elsevier B.V. All rights reserved.
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