고방사선장내 작업 로봇용 이중 방사선 감지 시스템

A Dual Radiation Monitoring System Ror Robot Working in High Radiation Field

  • 발행 : 2005.09.01

초록

The effect of high irradiation on inspection systems in a nuclear power plant can be severe, especially to electronic components such as control hoards. The effect may lead to a critical malfunction or trouble to a underwater robot for inspection and maintenance of nuclear reactor. However, if information on the total accumulated dose on the sensitive parts of the robot is available, a prediction of robot's behavior in radiation environments becomes possible. To know how much radiation the robot has encountered, a dosimeter to measure the total accumulated dose is necessary. This paper describes the development effort of a dual radiation monitoring system using a SiC diode as a dose-rate meter and a p-type power MOSFET as a dose meter. This attempt using two sensors which detect same radiation improves reliability and stability at high intensity radiation detection in nuclear facilities. It uses the concept of diversity and redundancy.

키워드

참고문헌

  1. S. Metzger, Silicon carbide radiation detector for harsh environments Nuclear Science, IEEE Transactions on Nuclear Sicence, vol. 49, pp. 1351-1355, 2002 https://doi.org/10.1109/TNS.2002.1039666
  2. Andrew Holmes-Siedle, Leonard Adams, J. Stephen Leffler, and Steven R. Lindgren, The RADFET System for Real-Time Dosimeter in Nuclear Facility, IEEE Trans. Nucl. Sci., 1983
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