Slightly edited version of the one evaluated by B. Singh for ENSDF, dated: 31-Jul-2014

2010Oh02: ⁸¹Cu nuclide identified in Be(²³⁸U,F) and Pb(²³⁸U,F) reactions with a ²³⁸U⁸⁶⁺ beam energy of 345 MeV/nucleon produced by the cascade operation of the RBIF accelerator complex of the linear accelerator RILAC and four cyclotrons RRC, fRC, IRC and SRC. Identification of ⁸¹Cu nuclei was made on the basis of magnetic rigidity, time-of-flight and energy loss of the fragments using BigRIPS fragment separator. Experiments performed at RIKEN facility.

Based on α/Q spectrum and Z versus α/Q plot, 36 counts were assigned to ⁸¹Cu isotope. (Q=charge state)

2014Xu07: ⁸¹Cu nuclide produced in ⁹Be(²³⁸U,F) reaction with a ²³⁸U⁸⁶⁺ beam of 345 MeV/nucleon produced at the RIKEN accelerator complex. Separation of ⁸¹Cu nuclei was made on the basis of magnetic rigidity, time-of-flight and energy loss of the fragments (ΔE-Bρ-tof method) using BigRIPS fragment separator and and ZeroDegree Spectrometer (ZDS) at RIBF-RIKEN facility. Based on α/Q spectrum and Z versus α/Q plot. Measured heavy fragment, β and γ spectra using wide-range active silicon strip stopper array (WAS3ABi) for β and ion detection, and EUROBALL-RIKEN Cluster array for γ detection. Decay curves were obtained from time differences between implantation and correlated β decays

2005Bo19: calculated half-life, β-delayed neutron emission probability

Q-value: ΔQ(β^-)=300, ΔS(n)=420, ΔS(p)=670, ΔQ(α)=670 (syst,2021Wa16)

Q-value: S(2n)=5650 320, Q(β^-n)=11670 300 (syst,2021Wa16)