CORRECTION FACTORS FOR GAMMA-RAY RELATIVE INTENSITIES IN THE GA-66 RADIOISOTOPE

We present here strong evidence that recently published values for the relative intensities of gamma-ray lines in the Ga-66(beta(+) EC)Zn-66 decay are incorrect at the higher energies (similar to 30% too low at 4.8 MeV), In particular, we find that our current results are consist ent with a set of correction factors which were first suggested 20 yea rs ago, but have gone largely ignored until now, Our validation of the se little known correction factors will have bearing on experiments wh ich use the Ga-66 radioisotope to extrapolate absolute detector effici encies to higher energies, In particular, we discuss the conclusions o f a recent D(p, gamma)He-3 experiment which will be strongly affected by our current results, The astrophysical S-factor data derived from t his D(p, gamma)He-3 experiment are now seen to be systematically too l ow by similar to 30%.