Abstract

The energies of the γ-rays emitted in the disintegration of some radioelements have been determined by means of a magnetic spectrograph. The results may be summarized as follows: <colspec colname="Col1"/><colspec colname="Col2"/><colspec colname="Col3"/><colspec colname="Col4"/><colspec colname="Col5"/><colspec colname="Col6"/><colspec colname="Col7"/> Radioelement Sb¹²² Cd¹¹⁵ Ir¹⁹² Mn⁵⁴ Zn⁶⁵ Co⁶⁰ Quantum energies (Mev) 0.80+/-0.02 0.65+/-0.02 0.63+/-0.02 0.86+/-0.02 1.14+/-0.02 1.33+/-0.03 The quantum energies were obtained from the end points of distributions in momentum of Compton secondaries arising from the several γ-rays. Qualitative results obtained from observations on several other γ-ray emitters are briefly discussed.