A novel segmented-scintillator antineutrino detector

Research output: Contribution to journalArticle

Authors

  • Yamiel Abreu
  • Y. Amhis
  • Lukas Arnold
  • G. Ban
  • Wim Beaumont
  • Mathieu Bongrand
  • Delphine Boursette
  • J.M. Buhour
  • B.C. Castle
  • Keith Clark
  • David Cussans
  • Albert De Roeck
  • J. D'Hondt
  • D. Durand
  • M. Fallot
  • S. Fresneau
  • L. Giot
  • Benoit Guillon
  • G. Guilloux
  • Sakari Ihantola
  • X. Janssen
  • Leonidas Kalousis
  • Mathieu Labare
  • Gregory Lehaut
  • Ianthe Michiels
  • Dave Newbold
  • Jaewon ¨Park
  • K. Petridis
  • Ibrahin Pinera
  • G. Pommery
  • G. Pronost
  • J. Rademacker
  • A. Reynolds
  • Dirk Ryckbosch
  • Nick Ryder
  • Daniel Saunders
  • Yu. A. Shitov
  • M.-H. Schune
  • P. R. Scovell
  • Laurent Simard
  • Antonin Vacheret
  • Petra Van Mulders
  • Nick Van Remortel
  • Simon Vercaemer
  • A. Waldron
  • Alfons Weber
  • Frederic Yermia

Institutes & Expert groups

  • UAntwerpen - Universiteit Antwerpen - Belgium
  • University Paris-Sud
  • University of Bristol
  • LPC - Laboratoire de Physique Corpusculaire de Caen
  • SUBATECH - Co-operated by École des mines de Nantes/Université de Nantes
  • University of Oxford
  • CERN - Conseil Européen pour la Recherche Nucléaire
  • VUB - Vrije Universiteit Brussel
  • Imperial College London
  • UGent - Universiteit Gent
  • STFC - Science and Technology Facilities Council
  • Virginia Polytechnic Institute and State University

Documents & links

DOI

Abstract

The next generation of very-short-baseline reactor experiments will require compact detectors operating at surface level and close to a nuclear reactor. This paper presents a new detector concept based on a composite solid scintillator technology. The detector target uses cubes of polyvinyltoluene interleaved with 6LiF:ZnS(Ag) phosphor screens to detect the products of the inverse beta decay reaction. A multi-tonne detector system built from these individual cells can provide precise localisation of scintillation signals, making efficient use of the detector volume. Monte Carlo simulations indicate that a neutron capture efficiency of over 70 % is achievable with a sufficient number of 6LiF:ZnS(Ag) screens per cube and that an appropriate segmentation enables a measurement of the positron energy which is not limited by gamma-ray leakage. First measurements of a single cell indicate that a very good neutron-gamma discrimination and high neutron detectionefficiency can be obtained with adequate triggering techniques. The light yield from positron signals has been measured, showing that an energy resolution of 14%/sqrt(E(MeV)) is achievable with high uniformity. A preliminary neutrino signal analysis has been developed, using selection criteria for pulse shape, energy, time structure and energy spatial distribution and showing that an antineutrino efficiency of 40% can be achieved. It also shows that the fine segmentation of the detector can beused to significantly decrease both correlated and accidental backgrounds.

Details

Original languageEnglish
Article numberp04024
Pages (from-to)1-18
Number of pages18
JournalJournal of Instrumentation
DOIs
StatePublished - 21 Apr 2017

Keywords

  • Neutrino detector, Calorimeters, cold, thermal, fast neutrons, Particle identification methods

ID: 2920100