Design of the readout electronics for the DAMPE Silicon Tracker detector

TL;DR

This paper details the design and performance of the readout electronics for the DAMPE Silicon Tracker, a space-based cosmic ray detector with complex data acquisition requirements.

Contribution

It introduces a comprehensive readout electronics system for the DAMPE Silicon Tracker, including ASICs, ADCs, and control modules, tailored for space environment constraints.

Findings

Successful implementation of readout electronics in space conditions

High channel count handling with ASICs and ADCs

Effective data processing and control modules

Abstract

The Silicon Tracker (STK) is a detector of the DAMPE satellite to measure the incidence direction of high energy cosmic ray. It consists of 6 X-Y double layers of silicon micro-strip detectors with 73,728 readout channels. It's a great challenge to readout the channels and process the huge volume of data in the critical space environment. 1152 Application Specific Integrated Circuits (ASIC) and 384 ADCs are adopted to readout the detector channels. The 192 Tracker Front-end Hybrid (TFH) modules and 8 identical Tracker Readout Board (TRB) modules are designed to control and digitalize the front signals. In this paper, the design of the readout electronics for STK and its performance will be presented in detail.