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FRS Karl-Heinz Schmidt
Production cross-section measurements The experimental installations of GSI Darmstadt, the heavy-ion accelerator SIS18 and the projectile-fragment separator FRS, allow for the first time to systematically measure the isotopic cross sections and velocities of heavy residues produced in peripheral nuclear collisions at relativistic energies. These experiments are first motivated by the nuclear-physics content:
Additional motivation arises from applications:
The following systems have been investigated: Isotopic distributions of Ir and Pt fragments from 197Au fragmentation at 1 A GeV Isotopic production in collisions of relativistic 208Pb with copper Isotopic production in collisions of relativistic 238U with copper Isotopic production in collisions of relativistic 238U with lead Isotopic production in collisions of relativistic projectiles with hydrogen
The figure illustrates the knowledge on heavy-residue production in relativistic heavy-ion collisions from GSI experiments of different groups. The clusters inside the red frame show the cross sections from 238U(1AGeV)+208Pb (T. Enqvist et al., Nucl. Phys. A658 (1999) 47). They have been completed by calculations with EPAX and ABRABLA. Specific experiments reaching to lower cross sections are shown in the insets: 238U(750AMeV)+Be (C. Engelmann et al., Z. Phys. A352 (1995) 351), 124Xe(1AGeV)+Be (R. Schneider, PhD thesis TU München, 1996), and 197Au(1AGeV)+Be ( J. Benlliure et al., Nucl. Phys. A660 (1999) 87). Click on the figure to see it in PDF format with better resolution. The figure is also available as EPS file.
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