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    • 9. 发明专利
    • Radiation measuring device
    • JP3991118B2
    • 2007-10-17
    • JP2004224826
    • 2004-07-30
    • 株式会社東芝独立行政法人 日本原子力研究開発機構
    • 明 佐野茂 兼本晋 内藤幸雄 吉村泰明 宮本徹 小野寺洋介 平田幹雄 泉雅弘 福本
    • G01T1/185G01T7/00
    • G01T1/185
    • PROBLEM TO BE SOLVED: To provide a radiation ray measurement device and an ion detector capable of collecting ions generated by the radiation rays radiated from the measurement object effectively and smoothly and improving the collection efficiency and also capable of correctly measuring the radiation dose radiated from the measurement object by correctly measuring the ion current caused by the collected ions. SOLUTION: The radiation ray measurement device is constituted of: the main body casing 11 forming the measurement chamber 12; the mounting table 13 for mounting the measurement object 15 emitting the radiation rays in the measurement chamber 12; the gas effluence means 18 provided in the casing 11 for making the ions generated from the measurement object 15 flow out together with the gas as convergent flow through a bell-mouth shape or horn shape nozzle; the radiation measurement means 16 provided on the down stream side of the gas effluence means 18 and also provided with the ion collection device 22 for collecting ions in the gas by applying electric fields and the current measurement device 33 for measuring the collected ions as current; and the gas feeding means 17 for feeding the refined gas into the measurement chamber 12. The radiation measurement means 16 is constituted such that the gas duct 20 is linearly formed from the gas effluence means 18 via the ion collection device 22 to the down stream side. COPYRIGHT: (C)2006,JPO&NCIPI