Document Type
Article
Publication Date
7-12-2013
Abstract
Short-lived neutron-rich nuclei including 93Br, 93Kr, and 94Kr were produced in proton-induced fission of 238U at the Holifield Radioactive Ion Beam Facility in Oak Ridge. Their β decay was studied by means of a high-resolution online mass separator and β-γ spectroscopy methods. The half-life of T1/2 = 152(8) ms and β-delayed branching ratio of Pn = 53-8+11% measured for 93Br differs from the previously reported values of T1/2 = 102(10) ms and Pn = 68(7)%. At the same time the half-life of 94Kr T1/2 = 227(14) ms and both the half-life of T1/2 = 1.298(54) s and β-delayed branching ratio of Pn = 1.9-0.2+0.6% of 93Kr are in very good agreement with literature values. The decay properties of 93Br include previously unreported γ transitions following β-delayed neutron emission. © 2013 American Physical Society.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
Recommended Citation
Miernik, K., Rykaczewski, K., Grzywacz, R., Gross, C., Stracener, D., Batchelder, J., Brewer, N., Cartegni, L., Fijałkowska, A., Hamilton, J., Hwang, J., Ilyushkin, S., Jost, C., Karny, M., Korgul, A., Królas, W., Liu, S., Madurga, M., Mazzocchi, C., Mendez, A., Miller, D., Padgett, S., Paulauskas, S., Ramayya, A., Surman, R., Winger, J., Wolińska-Cichocka, M., & Zganjar, E. (2013). β-Decay study of neutron-rich bromine and krypton isotopes. Physical Review C - Nuclear Physics, 88 (1) https://doi.org/10.1103/PhysRevC.88.014309