Abstract
We have measured production cross-sections of the new neutron-rich isotopes58Ti,61V,63Cr,66Mn,69Fe,71Co and neighbouring isotopes that have been identified as projectile fragments from reactions between a 500 MeV/u86Kr beam and a beryllium target. The isotope identification was performed with the zero-degree magnetic spectrometer FRS at GSI, using in addition time-of-flight and energy-loss measurements. The experimental production cross-sections for the new nuclides and neighbouring isotopes are compared with an empirical parametrization. The resulting prospects for reaching even more neutron-rich isotopes, such as the doubly-magic nuclide78Ni, are discussed.
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This work is part of the Ph.D. Thesis of M. Weber
We acknowledge the support of K.-H. Behr, A. Brünie, C. Bruske, K. Burkard, H.G. Burkhard, and the technical staff at GSI in setting up the FRS. Furthermore, we would like to thank the SIS operation crew and the GSI target laboratory for fruitful collaboration. One of us (DJV) would like to acknowledge support from the Alexander von Humboldt Foundation and the warm hospitality of GSI while on leave from Los Alamos.
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Weber, M., Donzaud, C., Dufour, J.P. et al. New neutron-rich isotopes in the scandium-to-nickel region, produced by fragmentation of a 500 MeV/u86Kr beam. Z. Physik A - Hadrons and Nuclei 343, 67–71 (1992). https://doi.org/10.1007/BF01291599
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DOI: https://doi.org/10.1007/BF01291599