On-line Time Differential Perturbed Angular Correlation with Light Probe Nucleus 19F

An on-line time differential perturbed angular correlation technique has been developed with the light probe nucleus 19F. The first on-line TDPAC measurement was carried out to determine the field gradient in Cd and quadrupole moment of 19F (0.197 MeV: I π = 5/2+, T1/2 = 89 ns).