The decay of the neutron-rich nucleus Bi-216

Kurpeta, J; Andreyev, Andrei; Äystö, J; Evensen, AH; Huhta, M; Huyse, Marc; Jokinen, A; Karny, M; Kugler, E; Lettry, J; Nieminen, A; Plochocki, Andrzej; Ramdhane, M; Ravn, HL; Rykaczewski, K; Szerypo, J; Van Duppen, Piet; Walter, G; Wöhr, A

The decay of the neutron-rich nucleus Bi-216

Author:

Kurpeta, J

Andreyev, Andrei ; Äystö, J ; Evensen, AH ; Huhta, M ; Huyse, Marc ; Jokinen, A ; Karny, M ; Kugler, E ; Lettry, J ; Nieminen, A ; Plochocki, Andrzej ; Ramdhane, M ; Ravn, HL ; Rykaczewski, K ; Szerypo, J ; Van Duppen, Piet ; Walter, G ; Wöhr, A

Keywords:

Decay, Region, Model, Configurations, isotopes, Science & Technology, Physical Sciences, Physics, Nuclear, Physics, Particles & Fields, Physics, ISOTOPES, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, 5106 Nuclear and plasma physics, 5107 Particle and high energy physics, 5110 Synchrotrons and accelerators

Abstract:

The decay of the neutron-rich isotope Bi-216, produced by proton-induced spallation at the PS Booster-ISOLDE facility, was investigated by beta - gamma gamma, alpha gamma coincidence and spect;rum-multiscaling measurements. A new method for reducing isobaric contamination enabled to cover the unknown region "east" of Pb-208 for, the isobaric chain A=216. The half-life of the beta decay of Bi-216 was found as T-1/2 = 135 +/- 5 s. Its decay scheme was extended and the possible shell model configurations are proposed.