Portal de Periódicos da CAPES

Heavy fragment production cross sections from 1.05 GeV/nucleon 56Fe in C, Al, Cu, Pb, and CH2 targets

1997; American Institute of Physics; Volume: 56; Issue: 1 Linguagem: Inglês

10.1103/physrevc.56.388

1538-4497

C. Zeitlin, L. Heilbronn, J. Miller, S. Rademacher, Thomas B. Borak, T. Carter, Kenneth A. Frankel, Walter Schimmerling, C. E. Stronach,

Nuclear Physics and Applications

We have obtained charge-changing cross sections and partial cross sections for fragmentation of 1.05 GeV/nucleon Fe projectiles incident on H, C, Al, Cu, and Pb nuclei. The energy region covered by this experiment is critical for an understanding of galactic cosmic ray propagation and space radiation biophysics. Surviving primary beam particles and fragments with charges from 12 to 25 produced within a forward cone of half-angle 61 mrad were detected using a silicon detector telescope to identify their charge and the cross sections were calculated after correction of the measured yields for finite target thickness effects. The cross sections are compared to model calculations and to previous measurements. Cross sections for the production of fragments with even-numbered nuclear charges are seen to be enhanced in almost all cases.