Study Of The High Spin States Of Stable Sr-84

High spin states of Sr-84 were populated by bombarding Zn-70 target with 75MeV O-18 beam provided by HI-13 Tandem Accelerator of CIAE, gamma-gamma coincidences and DCO ratios were measured using eight anticompton Ge detectors and one planar. A new level scheme of Sr-84 was established in which 12 new energy states and nearly 30 new gamma-transitions were identified in present work. Level scheme was compared with its even-even isotopes Sr-78,Sr-80,Sr-82,Sr-86. It shows that Sr-84 is a transitional nucleus, namely its ground state band exhibits a collective nature. The negative bands were extended to spin of 19(-) and the gamma-transition energies take on the nature of stagger. The negative band levels are in good agreement with D. C. M. theory calculations.