New Intrinsic Scintillator with Large Effective Atomic Number: Tl2HfCl6 and Tl2ZrCl6 Crystals for X-ray and Gamma-ray Detections

被引：33

作者：

Fujimoto, Yutaka ^{[1
]}

Saeki, Keiichiro ^{[1
]}

Nakauchi, Daisuke ^{[2
]}

Yanagida, Takayuki ^{[2
]}

Koshimizu, Masanori ^{[1
]}

Asai, Keisuke ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Sendai, Miyagi 9808579, Japan

[2] Nara Inst Sci & Technol, Grad Sch Mat Sci, 8916-5 Takayama, Nara 6300192, Japan

来源：

SENSORS AND MATERIALS | 2018年 / 30卷 / 07期

关键词：

scintillator; crystal growth; Tl2HfCl6; Tl2ZrCl6; LUMINESCENCE; CS2HFCL6; GROWTH;

D O I：

10.18494/SAM.2018.1927

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on the photoluminescence and scintillation characterizations of new Tl2HfCl6 and Tl2ZrCl6 crystalline scintillators grown by the vertical Bridgman-Stockbarger method. Both Tl2HfCl6 and Tl2ZrCl6 crystals showed an intrinsic emission band peak at 450-470 nm under UV light and X-ray excitations. The scintillation light yields of Tl2HfCl6 and Tl2ZrCl6 reach 24200 and 50800 photons/MeV, respectively. Their energy resolutions at 662 keV are 17.7% for Tl2HfCl6 and 5.6% for Tl2ZrCl6. The scintillation decay time values of Tl2HfCl6 are 288 and 6340 ns; meanwhile, those of Tl2ZrCl6 are 696 and 2360 ns.

引用

页码：1577 / 1583

页数：7

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