Published August 1985
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Lead, Platinum, and Other Heavy Elements in the Primary Cosmic Radiation--HEAO-3 Results
Abstract
This paper reports an observation of the abundances of cosmic-ray lead and platinum-group nuclei using data from the HEAO-3 Heavy Nuclei Experiment (HNE) which consisted of ion chambers mounted on both sides of a plastic Cherenkov counter (Binns et al., 1981). Previously we have reported on a search for actinide nuclei, Z > 88 (Binns, et al. 1982a). Further analysis with more stringent selections, inclusion of additional data, and a calibration at the LBL Bevalac, have allowed us to obtain the abundance ratio of lead and the platinum group of elements for particles that had a cutoff rigidity R_c > 5 GV.
Additional Information
© 1985 NASA/STI. Provided by the NASA Astrophysical Data System. The research was supported in part by NASA under grants NAG 8-498, 500, 502, and NGR 05-002-160, 24-005-050, and 26-008- 01.Attached Files
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Additional details
- Eprint ID
- 45426
- Resolver ID
- CaltechAUTHORS:20140501-122628758
- NASA
- NAG 8-498
- NASA
- NAG 8-500
- NASA
- NAG 8-502
- NASA
- NGR 05-002-160
- NASA
- NGR 24-005-050
- NASA
- NGR 26-008-001
- Created
-
2014-05-01Created from EPrint's datestamp field
- Updated
-
2020-03-09Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1985-19