Energy response of AlGaAs soft X-ray photon counting detectors

被引：1
作者：
Lees, J. E. [1 ]
Bugby, S. L. [1 ]
Boie, L. [2 ]
Scoular, C. [1 ]
机构：
[1] Univ Leicester, Dept Phys & Astron, Space Res Ctr, Leicester LE1 7RH, Leics, England
[2] Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany
来源：
JOURNAL OF INSTRUMENTATION | 2014年 / 9卷
关键词：
Solid state detectors; X-ray detectors; Radiation-hard detectors; PHOTODIODE; NOISE;
D O I：
10.1088/1748-0221/9/05/P05003
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A variety of new types of detectors based on wide band gap materials have been developed for soft X-ray spectroscopy applications (e.g. GaAs, SiC, diamond). In this report we describe the spectroscopic performance of a simple p-i-n diode fabricated on AlGaAs. The energy response of the diode, operating in photon counting mode, at room temperature has been investigated using fluorescence from a number of high purity materials. X-ray spectra over the energy range 5 keV-25 keV show this type of diode can be used for spectroscopy with promising energy resolution (similar to 1.3 keV) at 30 degrees C and excellent linearity.
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页数：13
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