On the Value of the Decay Constant for Spontaneous Fission of Uranium-238

Abstract

The fission-track method was used to determine the decay constant for spontaneous fission of uranium-238. The decay constant obtained is 7.1×10-17y-1. On the other hand, for the cross checking of fission-track ages with other age determination, the same samples dated by other methods were supplied to the fission-track age determination. Although the error limits of these results are relatively large, they support the value of 6.85×10-17y-1 (FLEISCHER and PRICE, 1964).