Internal bremsstrahlung spectrum of 𝐑�𝐛� 𝟑�𝟕� 𝟖�𝟔� for forbidden beta transition

Abstract

Many researchers have worked on to explain the theory of internal bremsstrahlung process released along with a beta particle and a neutrino from the beta-decaying radioactive nuclei. According to the original Knipp, Uhlenbeck and Bloch (KUB) theory, IB is a low-intensity continuous spectrum of electromagnetic radiation which accompanies all types of beta decay. Former experimental studies on the internal bremsstrahlung emission from the forbidden beta transitions have shown marked deviations from the theoretical calculations. We took the more theoretical calculations for the IB probability problem. The analytical expressions proposed by the work of Chang and Falkoff for forbidden transitions were used for the IB spectrum. We have also calculated the Coulomb effects of IB spectrum from the study by Lewis and Ford who first addressed to these phenomena. We have handled and analyzed the data of IB emissions of Rb 37 86 beta emitting isotope that its transition is classified as forbidden. In addition to the analytical calculation, IB spectrum was also obtained by applying Monte Carlo Method to IB problem. The results were compared with the IB spectrum results which are calculated from the analytical expressions.