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Instruments and Experimental Techniques

, Volume 61, Issue 5, pp 680–683 | Cite as

Determination of the 14C Concentration in a Liquid Scintillator for a Neutrino Detector

  • P. Yu. Naumov
  • E. D. Rovan
  • V. V. Sinev
Nuclear Experimental Technique
  • 15 Downloads

Abstract

A setup has been developed for studying ultralow 14C concentrations in liquid scintillator samples for a large neutrino detector. The setup is located at the low-background underground laboratory of the Baksan Neutrino Observatory (Institute for Nuclear Research, Russian Academy of Sciences) at a depth of 4900 m of water equivalent. The 14C concentrations in a liquid scintillator based on linear alkyl benzene, the background counting rates, and the spectra of particle energies deposited in the technological scintillator sample have been measured. The ratio 14C/12C = (1.41 ± 0.12) × 10–16 has been obtained. A model of the γ-ray background has been developed, with which it is possible to extract the energy spectrum of 14C and reduce the systematic uncertainty of measurements.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.National Research Nuclear University, Moscow Engineering Physics InstituteMoscowRussia
  2. 2.Institute for Nuclear ResearchRussian Academy of SciencesMoscowRussia

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