A position-sensitive detector for the polarized-neutron spectrometer

O. V. Fateev, G. A. Cheremukhina, S. P. Chernenko, Yu V. Zanevskij, H. Lauter, V. V. Lauter, S. V. Kozhevnikov, Yu V. Nikitenko, A. V. Petrenko

Research output: Contribution to journalArticlepeer-review

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Abstract

A linear detector of thermal neutrons, developed at the Laboratory for High Energies (Joint Institute for Nuclear Research), is used in the polarized-neutron spectrometer of the IBR-2 reactor (JINR). The data are acquired in the regime of frame-by-frame survey to select neutrons with a wavelength λ = 1-12 A by the time of flight. The neutron-detection efficiency is ≈ 70% for a wavelength of 2 A. The detector exhibits a low sensitivity to γ-rays, a differential nonlinearity of ≈1.5%, and a spatial resolution of ≈1.5 mm at counting rates of ≈105 events/s.

Original languageEnglish
Pages (from-to)5-12
Number of pages8
JournalPribory i Tekhnika Eksperimenta
Issue number2
StatePublished - 2001
Externally publishedYes

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