Well-type Ge Detector for Measuring Small Amount of Environmental Samples.
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概要
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<I>A well-type</I> Ge <I>detector was studied to use for determining radioactivities of</I> U <I>and</I> T h-<I>series nuclides in small amount of environmental samples. Peak efficiencies of the well-type detector decreased against the height of sample (relative variation rate (a'/Eff (<SUB>at24mm</SUB>) ) was about -1%/ mm in this study) . The principal reason is thought to be in self-absorption. It is convenient to use the first-order regression formula to calculate the efficiencies if sample height is lower than the well depth. This technique was applied to lake core samples to determine sedimentation rate, and a good result was obtained.</I>
- 社団法人 日本アイソトープ協会の論文
社団法人 日本アイソトープ協会 | 論文
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