Abstract
The CRIS experiment on ACE, with its excellent charge and mass resolution and a geometrical factor ∼10× that of any previous experiment, holds the promise of rewriting the book on galactic cosmic-ray abundance studies. Translating these measurements into precise cosmic-ray source abundances and using these measurements to determine more accurately the propagation history of cosmic rays is a different matter, however. In many important cases these studies will be limited by the accuracy of the nuclear cross-sections that determine how the cosmic-ray composition is modified as it traverses the interstellar matter. In this paper we will discuss these cross-sections and how well they are known as a function of the energy and the charge and mass of the cosmic-ray nuclei. This will then be used to discuss what new limits can be expected on several contemporary problems of interest in cosmic rays from the CRIS measurements.
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Webber, W.R. (1998). What are the Limits for Ace Galactic Cosmic-Ray Isotope Studies?. In: Russell, C.T., Mewaldt, R.A., Von Rosenvinge, T.T. (eds) The Advanced Composition Explorer Mission. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4762-0_12
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DOI: https://doi.org/10.1007/978-94-011-4762-0_12
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