The high-performance data acquisition system for the GAMMA-400 satellite-borne gamma-ray telescope

摘要

The future GAMMA-400 space mission is aimed for the study of gamma rays inthe energy range from ~20 MeV up to ~1 TeV. The observations will carry outwith GAMMA-400 gamma-ray telescope installed on-board the Russian SpaceObservatory. We present the detailed description of the architecture andperformances of scientific data acquisition system (SDAQ) developing by SRISAfor the GAMMA-400 instrument. SDAQ provides the collection of the data fromtelescope detector subsystems (up to 100 GB per day), the preliminaryprocessing of scientific information and its accumulation in mass memory,transferring the information from mass memory to the satellite high-speed radioline for its transmission to the ground station, the control and monitoring ofthe telescope subsystems. SDAQ includes special space qualified chipsetdesigned by SRISA and has scalable modular net structure based on fast andhigh-reliable serial interfaces.