The spectral distribution and absolute intensity of the internal bremsstrahlung emitted in beta-decay was investigated in P 32 , Y 91 , and RaE. The gamma-radiation was detected by means of a Nal(Tl) crystal, phototube, linear amplifier and one-channel discriminator. Care was taken to avoid spurious effects, and corrections were made for several factors. Both the spectral distributions and the absolute intensities of the continua are in excellent agreement with theoretical predictions. The differences in the spectra due to allowed or forbidden types of the beta-transition and to different forms of interaction are too small to be detected in these experiments. Observations on the angular correlation of the internal bremsstrahlung of beta-emitters and on the internal bremsstrahlung emitted in K capture are also reported. 12TT 4 k o 3 (-x*-3x 2 +-\ + W 0 2 ( 18 -# 5 +5# 3 )
LETTERS TO THE EDITORQ-value of -(1.006:4=0.010) Mev has been given 3 corresponding to a mass difference of (0.22±0.01) Mev.The new method of determining the energy-release in electron capture processes may be applied even in some cases where the disintegration goes over an excited level of the daughter nucleus with the emission of a nuclear 7-ray. A more detailed account will be published in Helvetica Physica Ada. We thank Professor P. Scherrer for his interest in this work.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.