High spin states in Rb-84

High spin states of Rb-84 were populated by the Zn-70 (O-18,p3n) reaction a t 75MeV O-18 beams provided by the HI-13 Tandem Accelerator of CIAE. Excita tion function, gamma-gamma coincidence and DCO Ratio were measured by using 8 EGO Compton-suppressed HPGe spectrometers and a planar HPGe detector. Mo re than 40 excited states and 50 gamma rays were identified in the present work. A new level scheme of 84Rb was established, in which the positive and negative bands are extended to 17(+) and 17(-) respectively. Comparing the odd-odd Rb isotopes and N = 47 isotones, the similar structure is observed in their low excited states.