Extrapolation of neutron-rich isotope cross-sections from projectile fragmentation

¹  National Superconducting Cyclotron Laboratory and Department of Physics & Astronomy, Michigan State University - East Lansing, MI 48824, USA
²  Institute of Modern Physics, CAS - Lanzhou 730000, China
³  Department of Physics, University of Wisconsin - Madison, WI 53706, USA

Corresponding author: Tsang@nscl.msu.edu

Received: 1 May 2007
Accepted: 29 May 2007

Abstract

Using the measured fragmentation cross-sections produced from the ⁴⁸Ca and ⁶⁴Ni beams at 140 MeV per nucleon on ⁹Be and ¹⁸¹Ta targets, we find that the cross-sections of unmeasured neutron-rich nuclei can be extrapolated using a systematic trend involving the average binding energy. The extrapolated cross-sections will be very useful in planning experiments with neutron-rich isotopes produced from projectile fragmentation. The proposed method is general and could be applied to other fragmentation systems including those used in other radioactive ion beam facilities.