Energy resolution improvement in room-temperature CZT detectors

被引：9

作者：

Ramachers, Y. ^{[1
]}

Stewart, D. Y. ^{[1
]}

机构：

[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

JOURNAL OF INSTRUMENTATION | 2007年 / 2卷

基金：

英国科学技术设施理事会;

关键词：

gamma detectors (scintillators; CZT; HPG; HgI etc); front-end electronics for detector readout; data processing methods;

D O I：

10.1088/1748-0221/2/12/P12003

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present methods to improve the energy resolution of single channel, room-temperature Cadmium-Zinc-Telluride (CZT) detectors. A new preamplifier design enables the acquisition of the actual transient current from the crystals and straightforward data analysis methods yield unprecedented energy resolution for our test-detectors. These consist of an eV-CAPture Plus crystal as standard and 1 cm cube Frisch collar crystals created in-house from low-grade coplanar grid detectors. Energy resolutions of 1.9% for our collar detectors and 0.8% for the eV crystal at 662 keV were obtained. The latter compares favourably to the best existing energy resolution results from pixel detectors.

引用

页数：13

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