X- and γ-ray response of Sm-doped SrBr_2 crystalline scintillators emitting red-NIR photons

Nakauchi Daisuke; Fujimoto Yutaka; Kato Takumi; Kawaguchi Noriaki; Yanagida Takayuki

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X- and γ-ray response of Sm-doped SrBr_2 crystalline scintillators emitting red-NIR photons

机译：SM掺杂SRBR_2晶体闪烁体的X和γ射线响应发射红发光光子

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Sm:SrBr2 crystals with various Sm concentrations were prepared by the vertical Bridgman method, and the detector properties including emission spectra, decay time, and pulse height were investigated. The samples exhibit a broad emission band peaking at 690 nm and decay time of about 10 mu s, and the emission is attributable to the allowed 5d-4f luminescence of Sm2+. The pulse height analyses under Cs-137 gamma-rays (662 keV) demonstrate that the light yields of the 0.03, 0.1, 0.3, and 1% Sm:SrBr2 are 31000, 32000, 23000 and 13000 photons/MeV, respectively. (C) 2021 The Japan Society of Applied Physics

机译：通过垂直的Bridgman方法制备具有各种SM浓度的SM：SRBR2晶体，并研究了包括发射光谱，衰减时间和脉冲高度的检测器性能。样品在690nm的宽发射带峰值和约10μm的衰减时间呈现，并且发射可归因于SM2 +的允许的5D-4F发光。 CS-137γ射线（662KeV）下的脉冲高度分析表明，0.03,0.1,0.3和1％SM：SRBR2分别为31000,32000,23000和13000光子/ MEV。（c）2021日本应用物理学会

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来源
《Japanese journal of applied physics》 |2021年第9期|092002.1-092002.4|共4页
作者
Nakauchi Daisuke; Fujimoto Yutaka; Kato Takumi; Kawaguchi Noriaki; Yanagida Takayuki;
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作者单位

Nara Inst Sci & Technol NAIST Div Mat Sci 8916-5 Takayama Ikoma Nara 6300192 Japan;

Tohoku Univ Dept Appl Chem Grad Sch Engn Aoba Ku 6-6 Aramaki Sendai Miyagi 9808579 Japan;

Nara Inst Sci & Technol NAIST Div Mat Sci 8916-5 Takayama Ikoma Nara 6300192 Japan;

Nara Inst Sci & Technol NAIST Div Mat Sci 8916-5 Takayama Ikoma Nara 6300192 Japan;

Nara Inst Sci & Technol NAIST Div Mat Sci 8916-5 Takayama Ikoma Nara 6300192 Japan;

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正文语种 eng
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关键词
scintillation detector; radiation measurement; floating zone method; gamma-ray spectroscopy; near-infrared;

机译：闪烁探测器;辐射测量;浮子法;γ射线光谱;近红外线;

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X- and γ-ray response of Sm-doped SrBr_2 crystalline scintillators emitting red-NIR photons

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