Production of Neutron-Rich Isotopes around the Fermi Energy

Details Production of Neutron-Rich Isotopes around the Fermi Energy Production of Neutron-Rich Isotopes around the Fermi Energy

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apro10010s&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

Peripheral or near peripheral collisions between heavy nuclei around or below the Fermi energy involve the exchange of a substantial number of nucleons. By colliding a neutron rich beam with a neutron rich target at this energy, very neutron rich fragments can be produced. At Texas A&M we initiated a study of such reactions in order to be employed as a means to generate n-rich rare isotope beams (RIB). The results of a recent study of the yield distributions of projectile-like fragments from the reactions (25 MeV/nucleon) ^86Kr + ^64Ni, ^208Pb and (20 MeV/nucleon) ^124Sn + ^124Sn measured with the MARS recoil separator will be presented and compared with reaction simulations. The calculations, involving a stochastic nucleon exchange model for the interaction stage followed by a statistical evaporation code for the de-excitation stage, provide an adequate discription of the reaction product distributions. In general, we show that such reactions can serve as an effective route to generate neutron rich rare beams. Apart from in-flight options, the possible use of these reactions in IG-ISOL based facilities will be mentioned and applications in current RIB plans at Texas A&M will be briefly outlined.

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