Methods for Increasing the Resistance of Polymers to Low-Temperatures

Abstract

y r a y and internal conversion electron spectra of the "Se(p, ny)"Br reaction were measured with Ge(Li) and superconducting magnet transporter Si(Li) spectrometers respectively, at 3.5 and 4 MeV bombarding proton energies. The level scheme of "Br, multipolarities of 11 transitions, y-branching ratios, level spin and parity values have been deduced. The energies of "Br levels were calculated on the basis of the parabolic rule derived from the cluster-vibration model. This calculation provided a simple classification of several multiplet states in "Br.