Pulse shape discrimination capability of metal-loaded organic liquid scintillators for a short-baseline reactor neutrino experiment

B. R. Kim, B. Y. Han, E. J. Jeon, K. K. Joo, Jeongsoo Kang, N. Khan, H. J. Kim, Hyunsoo Kim, J. Y. Kim, Kim Siyeon, S. C. Kim, Yeongduk Kim, Y. J. Ko, Jaison Lee, Jeong Yeon Lee, J. Y. Lee, K. J. Ma, Hyeonseo Park, H. K. Park, K. S. ParkK. M. Seo, Gwang Min Seon, I. S. Yeo, K. M. Yeo

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19 Scopus citations

Abstract

A new short-baseline (SBL) reactor neutrino experiment is proposed to investigate a reactor anti-neutrino anomaly. A liquid scintillator (LS) is used to detect anti-neutrinos emitted from a Hanaro reactor, and the pulse shape discrimination (PSD) ability of the metal-loaded organic LSs is evaluated on small-scale laboratory samples. PSD can be affected by selecting different base solvents, and several of the LSs used two different organic base solvents, such as linear alkyl benzene and di-isopropylnaphthalene. For the metallic content, gadolinium (Gd) or lithium (6Li) was loaded into a home-made organic LS and into a commercially available liquid scintillation cocktail. A feasibility study was performed for the PSD using several different liquid scintillation cocktails. In this work, the preparation and the PSD characteristics of a promising candidate, which will be used in an above-ground environment, are summarized and presented.

Original languageEnglish
Article number055302
JournalPhysica Scripta
Volume90
Issue number5
DOIs
StatePublished - 1 May 2015

Keywords

  • gadolinium
  • liquid scintillator
  • lithium
  • pulse shape discriminaton
  • reactor neutrino

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