Ground-based simulations of galactic cosmic ray fragmentation and transport☆
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Twenty years of space radiation physics at the BNL AGS and NASA Space Radiation Laboratory
2016, Life Sciences in Space ResearchCitation Excerpt :The energy spectra of heavy ions in the galactic cosmic radiation (GCR) have broad peaks in the range of several hundred MeV/nucleon, fortuitously close to energies available at high energy heavy ion accelerators (Fig. 1). In the 1980s and early 1990s Walter Schimmerling and collaborators at Lawrence Berkeley National Laboratory (LBNL) carried out a number of nuclear fragmentation studies at the LBNL Bevalac (Miller 1994; Zeitlin et al., 1996ab). Following the closing of the Bevalac in the early 1990s, NASA contracted with Brookhaven National Laboratory (BNL) to make beam time available at the Alternating Gradient Synchrotron (AGS), and a rudimentary target area and data taking facility were constructed, using instrumentation salvaged from the Bevalac facility.
Water radiolysis with heavy ions of energies up to 28 GeV. 1. Measurements of primary g values as track segment yields
2008, Radiation Physics and Chemistry
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Supported by the National Aeronautics and Space Administration under contract L14230C and conducted at the Lawrence Berkeley Laboratory (Department of Energy contract DE-AC03-76SF00098 to the University of California).
This work was carried out in collaboration with K. Frankel, W. Gong, L. Heilbronn, W. Schimmerling and C. Zeitlin of Lawrence Berkeley Laboratory, M. R. Shavers of Texas A&M University and L. W. Townsend and J. W. Wilson of NASA Langley Research Center