Application of CdTe spectrometers for hard X-ray astronomy

Computer Science – Performance

Scientific paper

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Astronomical Spectroscopy, Cadmium Tellurides, Satellite-Borne Instruments, Semiconductor Devices, X Ray Spectroscopy, Fluence, Gamma Rays, Performance Tests, Proton Irradiation, Radiation Dosage, Space Environment Simulation

Scientific paper

Progress in the development of CdTe detectors has reached a point where serious considerations have been given to their use as hard X-ray spectrometers for certain satellite applications. A measurement program to investigate the performance of CdTe gamma-ray detectors after bombardment with 33-MeV protons has been undertaken in order to evaluate the effects of energetic protons encountered in earth-orbit. Energy resolutions and leakage currents are observed to improve at moderate bombardment levels. Relative pulse heights and energy resolutions decrease significantly after large doses.

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