Energy-Loss-Straggling Experiments with Relativistic Heavy Ions in Solids

C. Scheidenberger; H. Geissel; H. H. Mikkelsen; F. Nickel; S. Czajkowski; H. Folger; H. Irnich; G. Münzenberg; W. Schwab; Th. Stöhlker; T. Suzuki; B. Voss

doi:10.1103/PhysRevLett.77.3987

Energy-Loss-Straggling Experiments with Relativistic Heavy Ions in Solids

C. Scheidenberger, H. Geissel, H. H. Mikkelsen, F. Nickel, S. Czajkowski, H. Folger, H. Irnich, G. Münzenberg, W. Schwab, Th. Stöhlker, T. Suzuki, and B. Voss

Phys. Rev. Lett. 77, 3987 – Published 4 November 1996

Abstract

Energy-loss straggling measurements performed at the high-momentum-resolution magnetic spectrometer FRS with bare and highly charged $_{8} O$ , $_{54} Xe$ , $_{79} Au$ , and $_{92} U$ ions with specific kinetic energies (700–1000) MeV/u are reported. The results are in good agreement with rigorous calculations recently reported by Lindhard and Sørensen and reveal systematic deviations from the well-known relativistic Bohr formula, which was obtained within the framework of the first-order Born approximation.