Digital processing of large-area avalanche photodiode signals for x-ray spectrometry applications

被引：0
作者：
Fernandes, LMP [1 ]
Simoes, PCPS [1 ]
dos Santos, JMF [1 ]
Morgado, RE [1 ]
机构：
[1] Univ Coimbra, Dept Phys, P-3004516 Coimbra, Portugal
来源：
2001 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORDS, VOLS 1-4 | 2002年
关键词：
D O I：
10.1109/NSSMIC.2001.1009693
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The response of a large-area avalanche photodiode to x-rays was investigated by applying pulse-shape discrimination techniques based on rise time. The method employed analogue pre-shaping with time constants of 200 ns followed by digital signal processing in a commercial 125-Mhz digitiser. Pulse rise-time discrimination was applied to improve detector energy resolution, background level, and peak distortion. Electronic noise pulses can be efficiently removed at the expense of data acquisition throughput.
引用
收藏
页码：869 / 872
页数：4
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