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New Measurements of Fragmentation Cross Sections from ^(56)Fe and ^(60)Ni Beams at Energies Relevant to Galactic Cosmic-Ray Propagation

George, J. S. and Mewaldt, R. A. and Yanasak, N. E. and Wiedenbeck, M. E. and Connell, J. J. and Audouin, L. and Bacri, C.-O. and Berthier, B. and Ferrant, L. and Rejmund, F. and Stéphan, C. and Tassan-Got, L. and Karamanis, D. and Czajkowski, S. and Boudard, A. and Ducret, J.-E. and Fernandez, B. and Leray, S. and Villagrasa, C. and Volant, C. and Faestermann, T. and Enqvist, T. and Hammache, F. and Helariutta, K. and Jurado, B. and Schmidt, K.-H. and Sümmerer, K. and Ricciardi, M.-V. and Vivès, F. and Heinz, A. and Benlliure, J. and Casarejos, E. and Ordonez, M. F. and Pereira-Conca, J. and Junghans, A. R. (2001) New Measurements of Fragmentation Cross Sections from ^(56)Fe and ^(60)Ni Beams at Energies Relevant to Galactic Cosmic-Ray Propagation. In: Proceedings of the 27th International Cosmic Ray Conference. Vol.5. Copernicus Systems and Technology GmbH , Berlin, Germany, pp. 1956-1959.

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Models of cosmic-ray propagation in the Galaxy rely heavily on knowledge of the nuclear fragmentation cross sections which govern spallation of heavy nuclei in the interstellar medium. Interpretation of high-precision cosmic-ray composition data such as those from the ACE and Ulysses missions requires improved cross-section data. New measurements of partial fragmentation cross sections have been made with high statistical accuracy at the GSI heavy ion synchrotron (SIS) using ^(56)Fe beams at five energies between 300 and 1500 MeV/nucleon, and 60 Ni beams at 500 and 1000 MeV/nucleon, on a liquid hydrogen target. We report on progress in analyzing these data.

Item Type:Book Section
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URLURL TypeDescription
Mewaldt, R. A.0000-0003-2178-9111
Wiedenbeck, M. E.0000-0002-2825-3128
Additional Information:© Copernicus GmbH. Participation in these measurements was supported at the California Institute of Technology and the Jet Propulsion Laboratory by NASA (under grant NAG5-6912). We gratefully acknowledge the assistance of the technical staff in the SIS and FRS groups at GSI.
Group:Space Radiation Laboratory
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2001-56
Record Number:CaltechAUTHORS:20150303-140050267
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55486
Deposited By: Deborah Miles
Deposited On:05 Mar 2015 03:29
Last Modified:09 Mar 2020 13:19

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