双面硅条探测器读出系统设计

Design of Readout System of DSSD

摘要: 双面硅条探测器(DSSD)用于实现中国电磁监测试验卫星高能粒子探测器载荷的望远镜系统。为了实现DSSD读出电子学低功耗、高集成度的要求，设计了一种基于ASIC VA64TA2的电子学读出系统，使用²⁴¹Am 5.486 MeV α源对DSSD读出系统进行了测试。DSSD探测器结面分辨率为1%~2%，欧姆面分辨率为3%~4%，达到了探测器额定性能。

Abstract: The double-sided silicon strip detector (DSSD) is the main component of the high energy particle detector (HEPD) onboard China seismic electromagnetic satellite (CSES). The low power consumption and high integration level of DSSD readout electronics was attained by using the application specific integrated circuit (ASIC) VA64TA2. The functions of the DSSD readout system were tested by ²⁴¹Am 5.486 MeV α particles. The energy resolution of the junction side is about 1%-2%, and the energy resolution of the ohmic side is about 3%-4%. The results generally meet the rated performance of the DSSD.