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Disintegration Schemes of Radioactive Substances. IV.
Phys. Rev. 62, 3 – Published 1 July, 1942
DOI: https://doi.org/10.1103/PhysRev.62.3
Abstract
The mode of disintegration of the 47-day isotope of iron has been investigated by spectrometer and coincidence techniques. The beta-ray spectrum is complex, consisting of two components of approximately equal intensity with end points 0.257±0.008 Mev and 0.460±0.007 Mev. The low energy group is accompanied by gamma-rays of energy 1.30±0.02 Mev, and the high energy group by gamma-rays of energy 1.10±0.02 Mev. No beta-rays of energy greater than 0.460 Mev are present to as much as 0.25 percent of the main group. The yield of from an iron target bombarded by 12-Mev deuterons is 0.05 microcurie per microampere hour. Methods of purification and preparation are described.
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