Monocrystalline ZnSe as an ionising radiation detector operated over a wide temperature range |
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Institution: | 1. Department of Applied Physics, Xi''an University of Sciences and Technology, Xi''an 710054, China;2. Institute of High Energy Physics, Chinese Academy of Sciences, No. 19 Yuquan Lu, Beijing 100049, China |
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Abstract: | This work presents an analysis of the main requirements for semiconductor detectors of ionising radiation that can be operated over a wide temperature range. The analysis shows that wide-gap semiconductors with a band gap greater than 2.0 eV are a better option for effective detection of ionising radiation at high temperatures. The results of an experimental investigation into the luminescent, electrical and spectrometric properties of the wide-gap semiconductor ZnSe are shown as an example. Undoped monocrystalline ZnSe has an extremely low leakage current over a wide range of temperatures up to 167 °C and can be used as a radiometric X-ray detector in pulse-counting mode over a wide temperature range up to at least 130 °C. |
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Keywords: | X-ray Gamma ray ZnSe Semiconductor Radiation High temperature Detector |
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