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RADIOACTIVITY MEASUREMENT APPARATUS, RADIOACTIVITY MEASUREMENT METHOD, RADIOACTIVITY INFORMATION PROCESSING SERVER, AND RADIOACTIVITY INFORMATION PROCESSING SYSTEM
RADIOACTIVITY MEASUREMENT APPARATUS, RADIOACTIVITY MEASUREMENT METHOD, RADIOACTIVITY INFORMATION PROCESSING SERVER, AND RADIOACTIVITY INFORMATION PROCESSING SYSTEM
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机译：放射性测量装置，放射性测量方法，放射性信息处理服务器和放射性信息处理系统
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摘要
To provide a method or the like that, even in a case of a low radioactivity concentration derived from a subject that cannot be moved from a site thereof such as a living tree or the like, can improve accuracy in a measurement of the radioactivity concentration while intending to decrease measurement loads.SOLUTION: In a first state, a housing 14 is in an open state, an X-ray unit 10 is disposed such that X-ray detectors 11, 12 are exposed to a subject, and a shielding member 20 surrounds the subject. Both the housing 14 and the shielding member 20 have a shielding ability from an X-ray of 32 KeV derived fromCs as a specific X-ray. In a second state, the housing 14 is in a closed state, the X-ray unit 10 is disposed such that the X-ray detectors are shielded from the subject, and the shielding member 20 does not surround the subject. A radioactivity concentration derived from the subject is determined based on a difference between a dose of specific X-rays corresponding to output signals from the X-ray detectors 11, 12 in the first state and a dose of specific X-rays corresponding to output signals from the X-ray detectors 11, 12 in the second state.SELECTED DRAWING: Figure 1
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