Electrical and detection performance of radiation detector based on bulk semi-insulating InP:Fe: role of detector volume
Smolenice（2000）
Abstract
In this work study of bulk semi-insulating (SI) InP:Fe-based particle detectors with emphasise to the role of detector volume is presented. Detectors based on three various materials with active contact area between 0.3-5.5 mm2 and various base length, 190, 400, and 1830 μm were fabricated and tested. Obtained attenuation volume ranges between 0.12 and 5.7 mm3. Detection performance of detectors was tested at temperature 230 K. Charge collection efficiency and energy resolution tested using γ-ray sources (241Am, 57Co) are demonstrated. Problems of measurement at voltages >1 kV necessary for detectors with long base (>500 μm) and architecture of a “large volume” radiation detector based on bulk SI InP applicable in detection of solar neutrino are discussed
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Key words
iii-v semiconductors,gamma-ray detection,indium compounds,iron,neutrino detection,semiconductor counters,1 kv,230 k,inp:fe,active contact area,attenuation volume,bulk semi-insulating inp:fe,charge collection efficiency,electrical characteristics,energy resolution,radiation detector,solar neutrino detection,temperature,particle detector,solar neutrinos,radiation detectors,attenuation,contact area
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