The MULTI spectrometer for measurement of β-decay process in exotic nuclei
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 Qβ values accessible in radioactive beams facilities. The...
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EDP Sciences
2021
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oai:doaj.org-article:d25be233faf34fbfac389ac6074143772021-12-02T17:12:45ZThe MULTI spectrometer for measurement of β-decay process in exotic nuclei2100-014X10.1051/epjconf/202125301003https://doaj.org/article/d25be233faf34fbfac389ac6074143772021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_01003.pdfhttps://doaj.org/toc/2100-014XThe 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 Qβ 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 CeBr3+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 60Co source are presented. Design of the neutron counter array, consisting of 40 proportional counters filled with 3He gas, was optimized with Monte Carlo simulations. Results were validated with a 252Cf spectroscopic source, leading to expected detection efficiency of ∼35% for neutrons with energy < 1MeV. Further development plans are discussed.Siváček IvanStukalov SergeySobolev YuriTestov DmitrySmirnov VladimirPenionzhkevich YuriZeinulla ZhasulanEDP Sciencesarticlemonte carlo simulationsphoswich detectorgamma-ray spectrometer3he neutron countersPhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 01003 (2021) |
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DOAJ |
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DOAJ |
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EN |
| topic |
monte carlo simulations phoswich detector gamma-ray spectrometer 3he neutron counters Physics QC1-999 |
| spellingShingle |
monte carlo simulations phoswich detector gamma-ray spectrometer 3he neutron counters Physics QC1-999 Siváček Ivan Stukalov Sergey Sobolev Yuri Testov Dmitry Smirnov Vladimir Penionzhkevich Yuri Zeinulla Zhasulan The MULTI spectrometer for measurement of β-decay process in exotic nuclei |
| description |
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 Qβ 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 CeBr3+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 60Co source are presented. Design of the neutron counter array, consisting of 40 proportional counters filled with 3He gas, was optimized with Monte Carlo simulations. Results were validated with a 252Cf spectroscopic source, leading to expected detection efficiency of ∼35% for neutrons with energy < 1MeV. Further development plans are discussed. |
| format |
article |
| author |
Siváček Ivan Stukalov Sergey Sobolev Yuri Testov Dmitry Smirnov Vladimir Penionzhkevich Yuri Zeinulla Zhasulan |
| author_facet |
Siváček Ivan Stukalov Sergey Sobolev Yuri Testov Dmitry Smirnov Vladimir Penionzhkevich Yuri Zeinulla Zhasulan |
| author_sort |
Siváček Ivan |
| title |
The MULTI spectrometer for measurement of β-decay process in exotic nuclei |
| title_short |
The MULTI spectrometer for measurement of β-decay process in exotic nuclei |
| title_full |
The MULTI spectrometer for measurement of β-decay process in exotic nuclei |
| title_fullStr |
The MULTI spectrometer for measurement of β-decay process in exotic nuclei |
| title_full_unstemmed |
The MULTI spectrometer for measurement of β-decay process in exotic nuclei |
| title_sort |
multi spectrometer for measurement of β-decay process in exotic nuclei |
| publisher |
EDP Sciences |
| publishDate |
2021 |
| url |
https://doaj.org/article/d25be233faf34fbfac389ac607414377 |
| work_keys_str_mv |
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