Measurement of Disintegration Rates of ^<60>Co Volume Sources by the Sum-Peak Method
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概要
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The sum-peak method has been applied to the determination of the disintegration rates of ^<60>Co volume sources (1.05×10^4 Bq, 1.05×10^3 Bq and 1.05×10^2 Bq, in 100-ml polyethylene bottles) by using a NaI(Tl) detector of a diameter of 50 mm and a height of 50 mm. The experimental results showed that decreasing the disintegration rates resulted in enlarged underestimation in comparison with the true disintegration rates. It was presumed that the underestimations of the disintegration rates determined by the sum-peak method resulted from the overestimations of the areas under the sum peaks caused by the overlap of the area under the Compton scattering of the γ-ray (2614 keV) emitted from a naturally occurring radionuclide ^<208>Tl under the sum peaks.
- 社団法人応用物理学会の論文
- 1991-02-15
著者
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KAWANO Takao
Radioisotope Center,University of Tsukuba
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Kawano Takao
Radioisotope Center University Of Tsukuba
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EBIHARA Hiroshi
Radioisotope Center, University of Tsukuba
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Ebihara Hiroshi
Radioisotope Center University Of Tsukuba
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