Cesium hafnium chloride: A high light yield, non-hygroscopic cubic crystal scintillator for gamma spectroscopy

被引：92

作者：

Burger, Arnold ^{[1
,2
]}

Rowe, Emmanuel ^{[1
]}

Groza, Michael ^{[1
]}

Figueroa, Kristle Morales ^{[1
]}

Cherepy, Nerine J. ^{[3
]}

Beck, Patrick R. ^{[3
]}

Hunter, Steven ^{[3
]}

Payne, Stephen A. ^{[3
]}

机构：

[1] Fisk Univ, Dept Life & Phys Sci, Nashville, TN 37208 USA

[2] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[3] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 14期

基金：

美国国家科学基金会; 美国能源部;

关键词：

SINGLE-CRYSTALS; LUMINESCENCE; CS2HFCL6; CS2ZRCL6;

D O I：

10.1063/1.4932570

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the scintillation properties of Cs2HfCl6 (cesium hafnium chloride or CHC) as an example of a little-known class of non-hygroscopic compounds having the generic cubic crystal structure of K2PtCl6. The crystals are easily growable from the melt using the Bridgman method with minimal precursor treatments or purification. CHC scintillation is centered at 400 nm, with a principal decay time of 4.37 mu s and a light yield of up to 54 000 photons/MeV when measured using a silicon CCD photodetector. The light yield is the highest ever reported for an undoped crystal, and CHC also exhibits excellent light yield nonproportionality. These desirable properties allowed us to build and test CHC gamma-ray spectrometers providing energy resolution of 3.3% at 662 keV. (C) 2015 AIP Publishing LLC.

引用

页数：3

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