<報文>軟β線の自己吸収の一測定法

概要

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Various amounts of barium sulfate of constant specific activity were collected uniformly on filter papers and their radioactive intensities were measured by the Geiger-Muller counter of end-window type. Self-absorption curve now obtained was well expressed by the following equation and as the value of self-absorption coefficient (μ), 0.22 (cm^2/mg) was obtained : [numerical formula] where I is the intensity of sample whose thickness is d and I_∞ is the intensity of sample of infinite thickness.
東北大学の論文
1953-09-10