Ion beam test result of the prototype silicon detector system for HERD project

HERD(High Energy Cosmic Radiation Detection) facility is one of the Cosmic Lighthouse Programs onboard China's Space Station. The main science objectives of HERD are indirect dark matter particles search, cosmic ray spectrum and composition measurements and high energy gamma-ray observations. The Silicon TracKer (STK) inherited from DAMPE is one of the main payloads of HERD. A new readout electronics system based on ASIC-IDE1162 is developed for charge measurement of STK. Here, we present the performance measurements and the preliminary ion beam test results.