Radiation monitoring device

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United States of America Patent

PATENT NO 12085682
APP PUB NO 20220236430A1
SERIAL NO

17614410

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Abstract

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A radiation monitoring device realizes a high measurement function. Therefore, a radiation monitoring device includes: a radiation detection unit including a phosphor that emits light by incident radiation; a photodetector that converts a single photon or a photon group having a plurality of the single photons generated by the radiation detection unit into an electric pulse signal; and an analysis unit that analyzes the electric pulse signal. The phosphor emits light based on a plurality of light emission phenomena having different decay time constants. The analysis unit includes: a signal discrimination circuit that discriminates the electric pulse signal output from the photodetector; a dose rate calculation circuit that calculates a dose rate of the radiation based on a count rate of the discriminated electric pulse signal; and an application energy calculation circuit that calculates application energy of the radiation based on a peak value of the discriminated electric pulse signal.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTD6-6 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1008280

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatakeyama, Shuichi Tokyo, JP 17 137
Okada, Kouichi Tokyo, JP 30 242
Sasaki, Keisuke Tokyo, JP 100 183
Shibutani, Tooru Tokyo, JP 2 2
Tadokoro, Takahiro Tokyo, JP 29 61
Ueno, Katsunori Tokyo, JP 126 2480
Ueno, Yuichiro Tokyo, JP 33 158

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