1. Production of neutron-rich nuclei in the vicinity of 78Ni: Fragmentation reactions of unstable 81Ga and 82Ge beams.
- Author
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Sun, X.H., Wang, H., Yoneda, K., Aoi, N., Baba, H., Bednarczyk, P., Dombrádi, Zs., Doornenbal, P., Fülöp, Zs., Go, S., Hashimoto, T., Ideguchi, E., Kobayashi, K., Kondo, Y., Lee, J., Liu, H.N., Liu, W.P., Lou, J.L., Matsushita, M., and Minakata, R. more...
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FRAGMENTATION reactions , *PARTICLES (Nuclear physics) , *PROJECTILES - Abstract
The fragmentation reactions of neutron-rich unstable nuclei 81Ga and 82Ge at 250 MeV/nucleon have been studied in order to search the optimal mean for the production of very neutron-rich nuclei in the vicinity of 78Ni. The newly measured cross sections were compared with various calculations, showing a good agreement with EPAX3.01. The present work provides experimental insights into the two-step scheme—fragmentation following fission—as a method to produce very neutron-rich nuclei through a combination of ISOL and fragmentation of post-accelerated beams of unstable nuclei. Our results enable an evaluation of the potential of the two-step scheme in the production of very neutron-rich nuclei for the 78Ni region. The two-step scheme using fragmentation of a post-accelerated 81Ga beam could be an option to produce neutron-rich nuclei around 78Ni when the 81Ga beam intensity reaches 1.0 × 10 8 pps, compared to the one-step scheme with fission of 238U. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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