Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 845, Issue -, Pages 548-551Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2016.05.005
Keywords
Neutron lifetime; Ultracold neutron detector
Categories
Funding
- Russian Science Foundation [14-22-00105]
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The gas-filled detector of ultracold neutrons has been designed and constructed for the spectrometer of the neutron lifetime measurements at the ILL, Grenoble, France. The detector has been successfully tested and is currently being used at this spectrometer. We could show that minimization of the wall effect is a key factor to ensure efficient background suppression and to maximize the detection efficiency. This effect is primarily related to the composition of the gas mixture, which crucially depends on the neutron velocity spectrum. (C) 2016 Elsevier B.V. All rights reserved.
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