| 摘要 |
PROBLEM TO BE SOLVED: To provide a land divider by which temporal measurement of an amount of radiation can be made in a boundary position.SOLUTION: In a temporary storage space 1 for a radioactive substance, a land is sectioned into inside and outside areas by fences 10, which are land dividers, and a radioactive substance accumulation place 20 is built in the inside area 100. Each fence 10 is composed of an optical fiber sensor 11, a multiplier phototube 13, a cable 14, a stake 15, a time wave high converter 17, an alarm 18, a PC 19, and so on. The optical fiber sensors 11 are used for measuring an amount of radiation by scintillation effect, and are provided in succession along a boundary position separating the inside and outside areas, and are supported at predetermined height by the stake 15. The PC 19 is connected to the optical fiber sensor 11 and records an amount of radiation measured by the optical fiber sensor 11. |
