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DOSIMETER FOR COLORED ALUMINUM OXIDE FILM AND MEASURING METHOD FOR RADIATION INTEGRATED DOSE USING THE DOSIMETER
DOSIMETER FOR COLORED ALUMINUM OXIDE FILM AND MEASURING METHOD FOR RADIATION INTEGRATED DOSE USING THE DOSIMETER
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机译:彩色氧化铝薄膜的剂量计及使用剂量计测定辐射综合剂量的方法
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摘要
PROBLEM TO BE SOLVED: To obtain a dosimeter which is not degraded even when it is used for many hours at a high temperature and in a high radiation dose rate and which can measure a high integrated dose by a method wherein a colored aluminum oxide film is executed to the surface of an aluminum alloy sheetlike small piece and a change in the discoloration of the surface color of the film irradiated with a radiation is measured.;SOLUTION: In this dosimeter 10 for a colored aluminum oxide film, an aluminum oxide film in a prescribed thickness by an anodizing operation is executed to the whole surface of an aluminum alloy plate. The surface of the dosimeter is made red by a dyestuff which is mixed with the film. In a measurement, an alanine dosimeter 30 is first placed in the same place as the dosimeter 10 in order to detect a radiation dose in its installation place, and a dose rate is calibrated by an electron spin method after it is irradiated for a set time, On the other hand, a change in the discoloration of the dosimeter 10 after it is irradiated with a radiation from a cobalt 60 source in an irradiation chamber 40 is measured in a time-series manner, and a relationship with an integrated dose is found as a graph. Thereby, the integrated dose at this time can be found with high accuracy on the basis of the hue value and the chroma value of the dosimeter 10.;COPYRIGHT: (C)2001,JPO
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