Abstract
Beam lifetimes of stored U28+ ions with energies between 10 and 180MeV/u were measured in the heavy ion synchrotron SIS18 and in the experimental storage ring (ESR) of the GSI accelerator facility. by using the internal gas jet target of the ESR, it was possible to obtain projectile ionization cross sections for collisions with H2 and N2 from the lifetime data. the experimental cross sections are compared to theoretical data predicted by the n-body classical-trajectory Monte Carlo (CTMC) method of Olson etal. and to calculations of Shevelko etal. using the LOSS-R code. in addition, both theoretical approaches are probed by using the resulting cross sections as input parameters for the STRAHLSIM code, which models the beam losses and, consequently, the lifetimes in the heavy ion synchrotron SIS18. Both the cross section measurement and the SIS18 lifetime study indicate that the LOSS-R code cross sections are in better agreement with the experimental results than the n-body CTMC calculations. © 2009 the American Physical Society.
Recommended Citation
G. Weber and C. Omet and R. D. DuBois and O. De Lucio and T. Stöhlker and C. Brandau and A. Gumberidze and S. Hagmann and S. Hess and C. Kozhuharov and R. Reuschl and P. Spiller and U. Spillmann and M. Steck, "Beam Lifetimes and Ionization Cross Sections of U28+," Physical Review Special Topics - Accelerators and Beams, vol. 12, no. 8, article no. 084201, American Physical Society, Aug 2009.
The definitive version is available at https://doi.org/10.1103/PhysRevSTAB.12.084201
Department(s)
Physics
International Standard Serial Number (ISSN)
1098-4402
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Amerian Physical Society, All rights reserved.
Publication Date
31 Aug 2009
