Figure 8

A gamma-ray spectrum resulting from the bombardment of 55 MeV 16O onto natCu. The spectrum was counted for 1 min beginning 7-min EOB. There is significant positron annihilation, as well as strong signatures of 77Kr.

A gamma-ray spectrum resulting from the bombardment of 55 MeV 16O onto natCu. The spectrum was counted for 1 min beginning 7-min EOB. There is significant positron annihilation, as well as strong signatures of 77Kr.