Trajectory Sensor and Readout Electronics of a Cosmic Dust Telescope

An Application Specific Integrated Circuit (ASIC) is developed for the processing of electrostatic signals from a trajectory sensor for cosmic dust. The detector is assembled of multiple wire electrodes which allow the determination of direction, speed and charge of cosmic dust. The circuit consists of two units, a low noise charge sensitive amplifier optimized for a specified detector capacitance and a multi-channel digital transient recorder. The last converts analog signals on 32 channels and buffers the data in a static memory. A controller coordinates the recording of the data and the serial readout on a trigger event. The two units are operated in a mixed-signal network performing a transient recording of a multi-channel low noise charge measurement. Physical separation of the individual front-end amplifiers allows the optimization of the detector capacitances. Circuit design and simulation, as well as successful system tests are presented.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Heidelberg

Year

2005

Author dc:creator

• Srowig, André

Contributors dc:contributor

• Grün, Eberhard

Repository record source_url

http://www.ub.uni-heidelberg.de/archiv/5402

OAI identifier oai:identifier

oai:archiv.ub.uni-heidelberg.de:5402