Energy resolution in GaAs X- and γ-ray detectors

被引：26

作者：

Bertuccio, G

Canali, C

Nava, F

机构：

[1] Politecn Milan, Dipartimento Elettr & Informat, I-20133 Milan, Italy

[2] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy

[3] Univ Modena, Dipartimento Sci Ingn, I-41100 Modena, Italy

[4] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[5] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 410卷 / 01期

关键词：

D O I：

10.1016/S0168-9002(98)00138-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The present limits of the energy resolution achievable using GaAs detectors are analysed and discussed. The noise due to the reverse current and the noise due to the charge-carrier trapping have been considered, giving upper limits to attain specific energy resolutions. The degradation of the resolution due to charge trapping is examined. It is shown that, in general, a charge collection efficiency higher than 98% is required to reduce the influence of the trapping in high-resolution X-and gamma-ray spectroscopy with GaAs detectors. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

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页码：29 / 35

页数：7

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