Measurements of k0 and Q0 values for 64Zn(n,γ)65Zn and 68Zn(n,γ)69mZn reactions with covariance analysis

The values of k0 and Q0 for 64Zn(n,γ)65Zn and 68Zn(n,γ)69mZn reactions were determined experimentally. The irradiations were performed near the core of the IEA-R1 3.5 MW nuclear research reactor of the Nuclear and Energy Research Institute - IPEN-CNEN/SP, in São Paulo, Brazil. The results for the neutron field parameters f and α were 49.7(19) and −1.1(31)×10−3, respectively. The resulting values of k0 and Q0 for 64Zn(n,γ)65Zn reaction were 5.63(8)×10−3 and 1.69(6), respectively, and the corresponding values for 68Zn(n,γ)69mZn reaction were 4.00(6)×10−4 and 2.34(4), respectively. These results were compared with the literature.