The cosmic radiation field is not well known up to the altitude of the lower orbiting spacecrafts. Since the frequency of manned space flights is increasing faster nowadays than before the importance of cosmic radiation and dosimetric measurements with advanced instruments and techniques is increasing. The radiation field should be studied at higher altitudes too for a detailed understanding of the cosmic radiation.
There are several ways to measure the cosmic radiation, however not easy to apply them to a sounding rocket. The easiest way is to use Geiger-Müller (GM) counters to quantify the radiation level and estimate its dose rate. The experiment is planned to perform measurements with active radiation instruments (GM counters) in order to quantify the cosmic radiation field from the Earth’s surface up to the maximum altitude of the REXUS rocket.
My task was to design a control unit of a system which is accordant to the ESA quality standards and capable of measuring acceleration, temperature, operational voltage and current and the count rate of the Geiger-Müller tubes.