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On the Separation of Nuclear Isomers
Phys. Rev. 61, 1 – Published 1 January, 1942
DOI: https://doi.org/10.1103/PhysRev.61.1
Abstract
The fact that nuclear isomers can be separated chemically cannot be explained on the basis of the recoils involved. However, with capture, or with internal conversion accompanying the isomeric transition, there is a mechanism for the separation. The positive charge built up by the Auger effect during the electronic readjustment is enough to cause molecular dissociation. To illustrate this, the probabilities for Auger effect and for x-rays for all shells of the Br atom were calculated and compared, and they show that the excess charge in this case becomes as high as 4.7e. The effect on homopolar binding is examined by using a hydrogen molecule model. It is found that excess charges considerably less than 4.7e should cause dissociation in the Br case.
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