Detection of Electron Polarization by Double Scattering

Abstract

12:000356A calculation is made of the circular polarization of the internal bremsstrahlung is allowed beta decay with the most general beta interaction. The polarization is found to rise from zero at the low-energy end of the spectrum to a maximum value at the high-energy end. This maximum value depends critically on the relative magnitudes of the coupling constants in the beta interaction. With the two-component neutrino theory and only the scalar and tensor interactions present, the polarization is complete at the high- energy end of the spectrum. Plots have been made, with this beta coupling, of the Born approximation result for the circular polarization as a function of photon energy for S/sup 35/ and P/sup 32/. The effects of the nuclear Coulomb field on the gamma -ray spectrum and polarization are discussed. (auth)