| 摘要 |
PROBLEM TO BE SOLVED: To provide a radioactive dust monitor with a simple structure and superior maintainability, which is capable of continuous measurement. SOLUTION: Portions 4, 6 for collecting dust of dust collecting means 4 to 6 and radiation detecting means 3 integrally surrounded by radiation shielding bodies 7, 8 of the portions 4, 6 and the radiation detecting means 3 and separated from each other; a separation body 31 for separating a radiation detecting means 3 from the side of dust collecting means 4 to 6 into a region surrounded by the radiation shielding bodies is provided; the dust collecting means 4 to 6 and their radiation shielding body 7 are provided in an airtight container 2, integrally drawably by a support stand 9 and a sliding mechanism 10; the radiation detecting means 3 and their radiation shielding body 8 are provided on the airtight container 2 to fix from the outside so as to keep airtightness. COPYRIGHT: (C)2006,JPO&NCIPI
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