Edwin O. Wiig

EXCHANGE REACTION OF GASEOUS BROMINE AND HYDROGEN BROMIDE

The exchange reaction of bromine and radioactive hydrogen bromide in the gas phase has been found to fall just short of reaching equilibrium in two minutes. The very rapid rate of exchange would seem to be accounted for best by a chain reaction involving bromine atoms.

EXCITATION FUNCTIONS OF THE (p,pn) AND (p,2p) REACTIONS ON Te

The cross sections of the reactions Te/sup 130/(p pn)Te/sup 129m/ Te/sup 130/(p,pn)Te/sup 129g/, and Te/sup 130/(p,2p)Sb/sup 129/ were determined for protons of 60, 120, 180, and 233 Mev energy. The observed yields of Te/sup 129/ and Sb/sup 129/ were compared with those predicted by interpolation of Monte Carlo cascade calculations on Ru/sup 100/ and Ce/sup 140/ at 83, 238, and 368 Mev followed by evaporatlon calculations based on data for Ce/sup 142/. There was good agreement in shape and absolute magnitude for the (p,pn) excitation function but poor agreemert for the (p,2p) reaction. In the (p,pn) reaction the low-spin Te/sup 129g/ isomer was found to be favored over high-spin Te/sup 129g/. (auth)