Recalculation of Data on ³²P Activity Induced in Sulfur in Hiroshima

A Review of Forty-Five Years Study of Hiroshima and Nagasaki Atomic Bomb Survivors I. DOSIMETRY

Abstract

Historical data for ³²P activity induced in sulfur by fast neutrons have been corrected for decay with a recent half-life value of ³²P and recalculated with an experimentally determined efficiency ratio of the electroscope for beta rays from ³²P and natural uranium used as a standard.
Most samples would have been pure enough so that no correction for the weight of sulfur has been made. The possibility of interference with ³²P activity measurements due to induced activity of other elements in the samples could also be excluded.
The revised data show little difference from the original ones except for one sample which contained much impurity. Uncertainty of the data was also discussed.