Radio-frequency spectroscopy in the states3D3,2 of platinum

The magnetic dipole hyperfine interaction constantsA of the atomic ground state3D3 and of the first excited state3D3 in195Pt have been measured by atomic beam magnetic resonance. The electronicg J factors of these states were determined from the Zeeman splitting in194Pt. Using intermediate coupling wave functions derived for the configurations (5d+6s)10 effective hyperfine radial integrals are evaluated.