Performance of SI LEC GaAs detectors at 20 degrees C and -30 degrees C for X- and gamma-ray spectroscopy

被引：17

作者：

Bertuccio, G

Alietti, M

Canali, C

Cetronio, A

Chiossi, C

Nava, F

机构：

[1] DIPARTIMENTO FIS,I-41100 MODENA,ITALY

[2] POLITECN MILAN,DIPARTIMENTO ELETTR & INFORMAT,I-20133 MILAN,ITALY

[3] DIPARTIMENTO SCI INGN,I-41100 MODENA,ITALY

[4] ALENIA SPA,I-00131 ROME,ITALY

[5] IST NAZL FIS NUCL,SEZ MILANO,I-20133 MILAN,ITALY

[6] IST NAZL FIS NUCL,SEZ BOLOGNA,I-40126 BOLOGNA,ITALY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1996年 / 379卷 / 01期

关键词：

D O I：

10.1016/0168-9002(96)00526-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on the performance and limitations of a 7 mm(2), 100 mu m thick SI LEC GaAs detector, operated in overdepleted conditions with applied bias of 400 V at 20 degrees C and -30 degrees C, In detecting X- and gamma-rays. At 20 degrees C performance is limited to a charge collection efficiency of 92% and to an energy resolution of about 16.5 keV FWHM on the 59.5 keV line of Am-241. At -30 degrees C the charge collection efficiency is 85% and a resolution in between 1.8 and 2.2 keV FWHM in the photon energy range 8-60 keV has been achieved. The latest data represent to bur knowledge the best ones yet reported for GaAs LEC detectors.

引用

页码：152 / 154

页数：3

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