实验证实,用重离子碰撞合成超重原子核时,准裂变对熔合的抑制是非常重要的.碰撞中双核系统间核子转移所形成的势能面称之为驱动势,它制约核子转移,因而决定熔合与准裂变的竞争.双核系统势能面还提供重离子碰撞合成超重原子核的最佳激发能和最佳弹靶组合的信息. Experiments show that when using heavy ion collisions to synthesize superheavy nuclei, the quasi-fission change is very important for the inhibition of the fusions.In the collision, the potential energy surface formed by the nucleon transfer between the dinuclear systems is called driving potential and it controls the nuclear transfer, Quasi-fission competition. The binuclear system potential energy surface also provides information on the best excitation energy and the best combination of targets for heavy ion collisions of synthetic overweight nuclei.