In:
EPJ Web of Conferences, EDP Sciences, Vol. 253 ( 2021), p. 01003-
Abstract:
The construction of the portable spectrometer, MULTI, is designed for the measurement of β-γ-neutron coincidences on beams of radioactive exotic nuclei. It will be used in measurements of the β-decay process of neutron-rich nuclei with large Q β values accessible in radioactive beams facilities. The experimental technique includes the measurement of the ratios between gamma-ray emission and multi-neutron emission, following beta-decay of radioactive nuclei implanted into an active target. The construction of a gamma-ray spectrometer based on high-volume CeBr 3 +NaI(Tl) phoswich scintillation detectors is introduced. Results of the measurements of its fundamental characteristics – total detection efficiency, peak efficiency and Compton suppression effect with a 60 Co source are presented. Design of the neutron counter array, consisting of 40 proportional counters filled with 3 He gas, was optimized with Monte Carlo simulations. Results were validated with a 252 Cf spectroscopic source, leading to expected detection efficiency of ∼35% for neutrons with energy 〈 1MeV. Further development plans are discussed.
Type of Medium:
Online Resource
ISSN:
2100-014X
DOI:
10.1051/epjconf/202125301003
Language:
English
Publisher:
EDP Sciences
Publication Date:
2021
detail.hit.zdb_id:
2595425-8
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