Mewaldt, R. A.
(1989)
The Abundances of Isotopes in the Cosmic Radiation.
In:
Cosmic abundances of matter.
AIP Conference Proceedings.
No.183.
American Institute of Physics
, Melville, NY, pp. 124-146.
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Abstract
Studies of the isotopic composition of nuclei in the cosmic radiation are reviewed, including abundances of the isotopes of elements from H to Ni (nuclear charge 1<Z<28), and their implications for cosmic ray origin, acceleration, and transport in the Galaxy. The review focuses on determinations of the composition of cosmic ray source material, and the extent to which the isotopic composition of this material is different from, or similar to, typical solar system material and other samples of Galactic matter. Theoretical models that have been advanced to explain the observed overabundance of neutron‐rich isotopes in cosmic rays are described. Also discussed are studies of various radioactive ‘‘clocks’’ that record the time‐scales associated with the nucleosynthesis, acceleration, and transport of cosmic ray nuclei, and studies of the so‐called ‘‘anomalous’’ cosmic ray component, thought to represent a sample of the neutral interstellar medium. Finally, the goals and prospects for future cosmic ray isotope spectrometers are described.
| Item Type: | Book Section |
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| Contact Email Address: | dmiles@caltech.edu |
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| Additional Information: | © 1989 American Institute of Physics.
Published online 01 March 1989.
I am grateful to the organizers of this conference for
their kind hospitality and to T. L. Garrard, E. C. Stone, W. R. Webber, J. P.
Wefel, M. E. Wiedenbeck, and S. E. Woosley for helpful discussions. This work
was supported in part by NASA under grants NAG5-722 and NGR 05-002-160.
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| Group: | Space Radiation Laboratory |
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| Funders: | | Funding Agency | Grant Number |
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| NASA | NAG5-722 | | NASA | NGR 05-002-160 |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Space Radiation Laboratory | 1988-11 |
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| Series Name: | AIP Conference Proceedings |
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| Issue or Number: | 183 |
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| DOI: | 10.1063/1.38009 |
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| Record Number: | CaltechAUTHORS:20140501-105136256 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140501-105136256 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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| ID Code: | 45410 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: |
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| Deposited On: | 01 May 2014 22:08 |
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| Last Modified: | 10 Nov 2021 17:03 |
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