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29 March 2024
 
  » arxiv » 1606.7432

 Article overview


Ultracold neutron detection with 6Li-doped glass scintillators, NANOSC: a fast ultracold neutron detector for the nEDM experiment at the Paul Scherrer Institute
G. Ban ; G. Bison ; K. Bodek ; Z. Chowdhuri ; P. Geltenbort ; W.C. Griffith ; V. Hélaine ; R. Henneck ; M. Kasprzak ; Y. Kermaidic ; K. Kirch ; S. Komposch ; P.A. Koss ; A. Kozela ; J. Krempel ; B. Lauss ; T. Lefort ; Y. Lemière ; A. Mtchedlishvili ; M. Musgrave ; O. Naviliat-Cuncic ; F. M. Piegsa ; E. Pierre ; G. Pignol ; G. Quéméner ; M. Rawlik ; D. Ries ; D. Rebreyend ; S. Roccia ; G. Rogel ; P. Schmidt-Wellenburg ; N. Severijns ; E. Wursten ; J. Zejma ; G. Zsigmond ;
Date 23 Jun 2016
AbstractThis paper summarizes the results from measurements aiming to characterize ultracold neutron detection with 6Li-doped glass scintillators. Single GS10 or GS20 scintillators, with a thickness of 100-200 micrometer, fulfill the ultracold neutron detection requirements with an acceptable neutron-gamma discrimination. This discrimination is clearly improved with a stack of two scintillators: a 6Li-depleted glass bonded to a 6Li-enriched glass. The optical contact bonding is used between the scintillators in order to obtain a perfect optical contact. The scintillator’s detection efficiency is similar to that of a 3He Strelkov gas detector. Coupled to a digital data acquisition system, counting rates up to a few 10^5 counts/s can be handled. A detector based on such a scintillator stack arrangement was built and has been used in the neutron electric dipole moment experiment at the Paul Scherrer Institute since 2010. Its response for the regular runs of the neutron electric dipole moment experiment is presented.
Source arXiv, 1606.7432
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