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Physics Letters B 364 (1995) 8-12
Beta-delayed proton emission from the proton-rich isotopes ^{67}se ^{71}kr ^{75}sr
B. Blank1, S. Andriamonje1, S. Czajkowski1, F. Davi1, R. Del Moral1, C. Donzaud, J.P. Dufour1, A. Fleury1, A. Grewe, R. Grzywacz, A. Heinz, Z. Janas, A. Junghans, M. Lewitowicz2, A. Musquere, M.S. Pravikoff1, M. Pfuetzner, J.E. Sauvestre

In an experiment at the SISSI/LISE facility of GANIL, we produced proton-rich isotopes in the selenium-to-strontium region by projectile fragmentation of a 78Kr primary beam at 73 MeV/nucleon. The emission of P-delayed protons from h7Se, 7'Kr, and 75Sr was observed for the first time and the corresponding branching ratios were determined. The proton energy spectra were compared to predictions of a statistical model. The half-lives of 67 Se, 7' Kr, and 75Sr were deduced from the time characteristics of the observed proton activity. The half-life of 75Sr was measured for the first time. For “Se and 7'Kr, the obtained half-lives are compared to previous measurements.
1 :  CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
2 :  GANIL - Grand Accélérateur National d'Ions Lourds
Physique/Physique des Hautes Energies - Expérience