The 'waiting point' nuclide 93Pd has been produced via the 58Ni(40Ca, 3n2p) reaction. A helium-jet fast tape transport system was used in combination with p-7 coincidence measurement to identify the β-delayed...The 'waiting point' nuclide 93Pd has been produced via the 58Ni(40Ca, 3n2p) reaction. A helium-jet fast tape transport system was used in combination with p-7 coincidence measurement to identify the β-delayed proton precursor 93Pd, whose half-life has been measured to be (1.3±0.2) s. The measured展开更多
The very neutron-deficient nuclide ^129Pm was produced via the ^92Mo( ^40Ca, p2n) reaction and identified for the first time by using the X-γ coincidence in combination with a He-jet tape transport system. According ...The very neutron-deficient nuclide ^129Pm was produced via the ^92Mo( ^40Ca, p2n) reaction and identified for the first time by using the X-γ coincidence in combination with a He-jet tape transport system. According to the decay curve of a 99 keV γ-ray which corresponds to the known 5/2^- → 1/2^- transition in the daughter nucleus ^129Nd of ^129pm decay, the half-live of ^129pm was determined to be 2.4(9) s (see Fig.l). Based on the nuclear potential-energy surface (PES) calculations, the ground-state spin and parity of ^129pm was predicted as 5/2^- which is favorable to fecd a 5/2&- low-lying statc in the daughter nucleus ^129Nd via the (EC+/β+) decay.展开更多
文摘The 'waiting point' nuclide 93Pd has been produced via the 58Ni(40Ca, 3n2p) reaction. A helium-jet fast tape transport system was used in combination with p-7 coincidence measurement to identify the β-delayed proton precursor 93Pd, whose half-life has been measured to be (1.3±0.2) s. The measured
文摘The very neutron-deficient nuclide ^129Pm was produced via the ^92Mo( ^40Ca, p2n) reaction and identified for the first time by using the X-γ coincidence in combination with a He-jet tape transport system. According to the decay curve of a 99 keV γ-ray which corresponds to the known 5/2^- → 1/2^- transition in the daughter nucleus ^129Nd of ^129pm decay, the half-live of ^129pm was determined to be 2.4(9) s (see Fig.l). Based on the nuclear potential-energy surface (PES) calculations, the ground-state spin and parity of ^129pm was predicted as 5/2^- which is favorable to fecd a 5/2&- low-lying statc in the daughter nucleus ^129Nd via the (EC+/β+) decay.
