Development of self-activated Tl2ZnCl4 and Tl3ZnCl5 scintillators

Development of self-activated Tl2ZnCl4 and Tl3ZnCl5 scintillators
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自激活Tl2ZnCl4和Tl3ZnCl5闪烁体的研制

DOI:
10.1016/j.optmat.2020.110455
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发表时间:
2020
期刊:
影响因子:
3.9
通讯作者:
Asai Keisuke
Asai Keisuke
中科院分区:
材料科学3区
文献类型:
--
作者:
Arai Miki;Fujimoto Yutaka;Koshimizu Masanori;Nakauchi Daisuke;Yanagida Takayuki;Asai Keisuke

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本文报道了两种新的基于有效原子序数较大的Tl_2ZnCl_4和Tl_3ZnCl_5晶体(Zeff分别为73.2和74.6)的自激活闪烁体的光致发光和闪烁特性,用于X射线和γ射线探测。在472 nm处观察到了Tl_2ZnCl_4和Tl_3ZnCl_5晶体的发射带。峰值波长是自激活氯化铊晶体的特征。Tl_2ZnCl_4和Tl_3ZnCl_5晶体的光产额分别约为10,000和2100光子/MeV。Tl 2 ZnCl 4的光输出与市售的发光材料如Gd 2SiO 5(Ce)(10,000光子/MeV)相匹配。
We report the photoluminescence and scintillation properties of two new self-activated scintillators, based on Tl2ZnCl4and Tl3ZnCl5crystals with large effective atomic numbers (Zeff= 73.2 and 74.6, respectively), for application in X- and gamma-ray detection. The emission bands of the Tl2ZnCl4and Tl3ZnCl5crystals were observed at 472 nm. The peak wavelengths were characteristic of self-activated thallium-based chloride crystals. The estimated light yields of the Tl2ZnCl4and Tl3ZnCl5crystals were approximately 10,000 and 2100 photons/MeV, respectively. The light yield measured for Tl2ZnCl4matches that of commercially available scintillators, such as Gd2SiO5(Ce) (10,000 photons/MeV).
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发表时间: 2017-04-20
期刊: Scientific reports
影响因子: 4.6
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