航天器环境工程2018，Vol.35Issue(2)：200-204,5.DOI:10.3969/j.issn.1673-1379.2018.02.017
基于Spartan-6的微结构探测器APV25数字化系统设计
Design of APV25 digitization system for MPGD based on Spartan-6
摘要
Abstract
To meet the demand of high-speed readout of multi-channel signals from micro pattern gas detectors, a digitization system is designed for the 128-channel preamplifier chip APV25 based on the field programmable gate array (FPGA) Spartan-6. In this system, the serial analog signal output by the APV25 is digitized by the analog-to-digital conversion (ADC) chip ADS5242. After the serial-to-parallel conversion by the Spartan-6, the data are acquired, buffered and packaged to the user datagram, and then sent to the computer via the gigabit ethernet for storage and analysis. In the test, the system reaches a maximum sampling rate of 280 kHz for the APV25, and the pedestal noise is as low as 716 electrons. The linearity of the charge response is good when the input amount of charge is less than 75 000 electrons. This system is expected to be used in the multi-channel radiation detection system in space thanks to the radiation tolerance of the APV25.关键词
APV25芯片/Spartan-6/数字化系统/千兆以太网/硬件设计Key words
APV25 chip/Spartan-6/digitization system/gigabit ethernet/hardware design分类
数理科学引用本文复制引用
李兴隆,胡守扬,周静,智宇,陈雷,刘雯迪,赵明锐,李沛玉,李笑梅..基于Spartan-6的微结构探测器APV25数字化系统设计[J].航天器环境工程,2018,35(2):200-204,5.基金项目
国家重点研发计划项目(编号:2016YFE0100900,2016YFA0400300) （编号:2016YFE0100900,2016YFA0400300）
国家自然科学基金项目(编号:11775313) （编号:11775313）
核探测与核电子学国家重点实验室开放课题基金项目 （）
