Performance of digital data acquisition system in gamma-ray spectroscopy

被引：15

作者：

Luo, Di-Wen ^{[1
]}

Wu, Hong-Yi ^{[1
]}

Li, Zhi-Huan ^{[1
]}

Xu, Chuan ^{[1
]}

Hua, Hui ^{[1
]}

Li, Xiang-Qing ^{[1
]}

Wang, Xiang ^{[1
]}

Zhang, Shuang-Quan ^{[1
]}

Chen, Zhi-Qiang ^{[1
]}

Wu, Chen-Guang ^{[1
]}

Jin, Yu ^{[1
]}

Lin, Jie ^{[1
]}

机构：

[1] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2021年 / 32卷 / 08期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Digital data acquisition system; Gamma spectroscopy; Energy resolution; REAL-TIME; ANALOG; RESOLUTION; DETECTORS;

D O I：

10.1007/s41365-021-00917-8

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A newly developed digital data acquisition system, which is based on the digital pulse processor Pixie-16 modules by XIA LLC, was tested with the gamma-ray detector array of the China Institute of Atomic Energy using the gamma-ray source and in-beam gamma-rays. A comparison between this digital data acquisition system and the conventional analog data acquisition system was made. At a low count rate, both systems exhibit good and comparable energy resolutions. At a high count rate above 8.8 k/s, while the energy resolution obtained by the analog system deteriorates significantly, the energy resolution obtained by the digital system is nearly unchanged. Meanwhile, experimental data with higher statistics can be collected by the digital system. The advantage of this digital system over the conventional analog system can be ascribed to its excellent capability of handling pile-up pulses at higher count rates, and the fact that it has nearly no dead time in data transmission and conversion.

引用

页数：11

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