INHIBITION AND ANTIINHIBITION EFFECTS OF ELECTRON SCAVENGERS IN HYDROCARBONS REVISITED

Positronium formation experiments in n-hexane were performed with C2H5 Br and CCl4 as inhibitors and others (decalin, tetralin, benzene, naph thalene, phenanthrene)as anti-inhibitors. Although the results can be interpreted in terms of the anti-recombination and anti-inhibition, it is necessary to consider further some new aspects of intra-spur react ions such as shallow trapping of e(+) and secondary reactions of Ps. T he data thus interpreted correlate excellently with the data of radiat ion chemistry.