关键词: 
数据获取 /
阵列探测器 /
PXI /
ROOT

摘要: 描述了一种适用于阵列探测器的数据获取系统。系统基于PXI总线， 采用标准NIM插件作为前端电子学。系统软件采用C/C++语言编写， 在线分析通过调用ROOT类库实现， 系统运行在Linux操作系统下。多次测试结果表明， 系统稳定可靠， 单个ADC通道可以处理的最大事例率为40 kHz。A data acquisition system for array detectors is described. The system is based on PXI bus with standard NIM modules used as front\|end electronics. The system software is written in C/C++ language with its online analysis modules realized by ROOT class library. Several runs of the system under Linux show that it is reliable and is capable of handling event rates up to 40 k events/s for 1 ADC channel.