  The silicon-strip tracker of the China Seismo-Electromagnetic Satellite
(CSES) consists of two double-sided silicon strip detectors (DSSDs) which
provide incident particle tracking information. The low-noise analog ASIC VA140
was used in this study for DSSD signal readout. A beam test on the DSSD module
was performed at the Beijing Test Beam Facility of the Beijing Electron
Positron Collider (BEPC) using a 400~800 MeV/c proton beam. The pedestal
analysis results, RMSE noise, gain correction, and particle incident position
reconstruction of the DSSD module are presented.
