Počet záznamů: 1
The MULTI spectrometer for measurement of beta-decay process in exotic nuclei
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SYSNO ASEP 0557384 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název The MULTI spectrometer for measurement of beta-decay process in exotic nuclei Tvůrce(i) Siváček, Ivan (UJF-V)
Stukalov, S. S. (RU)
Sobolev, Yu. G. (RU)
Testov, D. (RU)
Smirnov, V. (RU)
Penionzhkevich, Y. E. (RU)
Zeinulla, Z. (KZ)Celkový počet autorů 7 Číslo článku 01003 Zdroj.dok. EPJ Web of Conferences, ANIMMA 2021 – Advancements in Nuclear Instrumentation Measurement Methods and their Applications, 253. - Les Ulis : E D P Sciences, 2021 - ISSN 2100-014X Poč.str. 6 s. Forma vydání Tištěná - P Akce Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA) Datum konání 21.06.2021 - 25.06.2021 Místo konání Prague Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova Monte Carlo simulations ; Phoswich detector ; gamma-ray spectrometer ; He-3 neutron counters Obor OECD Nuclear physics CEP LTT18021 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UJF-V - RVO:61389005 UT WOS 000788459400003 DOI https://doi.org/10.1051/epjconf/202125301003 Anotace The construction of the portable spectrometer, MULTI, is designed for the measurement of beta-gamma-neutron coincidences on beams of radioactive exotic nuclei. It will be used in measurements of the beta-decay process of neutron-rich nuclei with large Q(beta) 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 Co-60 source are presented. Design of the neutron counter array, consisting of 40 proportional counters filled with He-3 gas, was optimized with Monte Carlo simulations. Results were validated with a Cf-252 spectroscopic source, leading to expected detection efficiency of similar to 35% for neutrons with energy < 1MeV. Further development plans are discussed. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2023
Počet záznamů: 1