(d, p) Reactions withKr78andKr80

Abstract

Three targets of krypton gas, the first analyzing ${\mathrm{Kr}}^{78}$ 45%, ${\mathrm{Kr}}^{80}$ 51%, ${\mathrm{Kr}}^{82}$ 3.8%, the second ${\mathrm{Kr}}^{78}$ 28%, ${\mathrm{Kr}}^{80}$ 65%, ${\mathrm{Kr}}^{82}$ 6.3%, and the third ${\mathrm{Kr}}^{78}$ 14.2%, ${\mathrm{Kr}}^{80}$ 69.8%, ${\mathrm{Kr}}^{82}$ 14.4%, were produced by the thermal diffusion separation process. The ($d, p$) reactions for these samples were studied with the 4-Mev deuteron beam of the Yale cyclotron. The ground state and first excited state $Q$ values of ${\mathrm{Kr}}^{79}$ are 5.98±0.05 Mev and 5.52±0.05 Mev, respectively. The ground state $Q$ value of ${\mathrm{Kr}}^{81}$ is tentatively set at 5.63±0.1 Mev. The masses of ${\mathrm{Kr}}^{79}$ and ${\mathrm{Kr}}^{81}$ are 78.94530±11 and 80.94249±14 amu.