Improved growth and scintillation properties of intrinsic, non-hygroscopic scintillator Cs2HfCl6

被引：24

作者：

Ariesanti, E. ^{[1
]}

Hawrami, R. ^{[1
]}

Burger, A. ^{[1
]}

Motakef, S. ^{[2
]}

机构：

[1] Fisk Univ, 1000 Seventeenth Ave N, Nashville, TN 37208 USA

[2] CapeSym Inc, Natick, MA 01760 USA

来源：

JOURNAL OF LUMINESCENCE | 2020年 / 217卷

基金：

美国国家科学基金会;

关键词：

Cs-based scintillator; Hf-based scintillator; Intrinsic scintillator; High light yield;

D O I：

10.1016/j.jlumin.2019.116784

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper focuses on recent successful and improved growth runs of single phase Cs2HfCl6 (CHC) as well as improvement to its radiometric and scintillation performance. Two single crystal CHC boules of 15 mm in diameter are grown using the vertical Bridgman method. Samples retrieved from each boule are characterized for their optical and scintillation properties. Energy resolution of 2.8% (FWHM) at 662 keV has been obtained. Gamma-ray non-proportionality of CHC is compared to those of NaI:Tl and BGO. Decay times are measured to be at least 246 ns (13%) and 3.3 mu s (87%) for CHC, an improvement to previously reported values. In this paper we also present growth and scintillation performance of Cs2Hf(Cl(1-x)Brx)(6) with Cl/Br = 2/1 relation (CHC/B), as well as its scintillation decay times.

引用

页数：5

共 12 条

[1] Cesium hafnium chloride: A high light yield, non-hygroscopic cubic crystal scintillator for gamma spectroscopy [J].