Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Large area detector of low-energy gamma radiation
Репозиторій DSpace/Manakin
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Large area detector of low-energy gamma radiation
Тема:
Devices and instruments
Інший ID:
DOI: https://doi.org/10.15407/fm24.04.678
Посилання:
Large area detector of low-energy gamma radiation / T.A. Nepokupnaya, A.A. Ananenko, A.Yu. Boyarintsev, A.A. Bobovnikov, A.V. Gektin, S.N. Kovalchuk, Yu.D. Onufriyev, V.Yu. Pedash // Functional Materials. — 2017. — Т. 24, № 4. — С. 678-681. — Бібліогр.: 6 назв. — англ.
Дата:
2017
Переглядів:
979
Завантажень:
667
Анотація:
Detectors for registration of low-energy gamma radiation based on plastic scintillator UPS-923A with composite YSO:Ce and CsI:Tl layers were developed. Size and concentrations of granules in the composite scintillators were determined experimentally. Additional composite layer in the detector design allowed reducing the gamma radiation registration threshold down to 20 keV. It was shown that registration efficiency of 59.5 keV gamma-quanta (Am²⁴¹) of the detector with YSO:Ce composite layer was 4 times higher than that of UPS-923A. The detector with CsI:Tl composite layer had 1.5 times higher sensitivity and almost 2 times lower minimum detectable activity in comparison to UPS-923A under Am²⁴¹ irradiation.
