质子滴线区新核素25P的鉴别

在兰州放射性束流装置RIBLL上 ,利用磁刚度B_ρ、飞行时间t_TOF和多重望远镜ΔE- E联合探测方法测量了69Me V/u 36Ar轰击Be靶产生的 P同位素碎片的同位素分布,并与 EPAX经验公式的计算结果进行了比较 ,在质子滴线区首次鉴别出了新核素25PThe mass distribution of the phosphor fragments induced by projectile fragmentation reaction of 69 MeV/u 36Ar + 9Be was measured at the projectile fragment separator RIBLL at IMP. The fragment products were identified by determining the magnetic rigidity Bρ , the time of flight t_TOF and their energy loss ΔE . The experimental isotope distribution was compared to the result of the empirical parameterization EPAX. Three events for the new nuclide 25P in the...

Identification of New Nuclide 25P in Region of Proton Drip Line

The mass distribution of the phosphor fragments induced by projectile fragmentation reaction of 69 MeV/u 36Ar ＋ 9Be was measured at the projectile-fragment separator RIBLL at IMP. The fragment products were identified by determining the magnetic rigidity Bρ, the time of flight tTor and their energy loss ΔE. The experimental isotope distribution was compared to the result of the empirical parameterization EPAX. Three events for the new nuclide 25p in the region of proton drip line were found in experiment of five days.