Published 2003 | Version Published
Book Section - Chapter Open

Measurements of the Ultra-Heavy Galactic Cosmic-Ray Abundances between Z=30 and Z=40 with the TIGER Instrument

Abstract

The Trans-Iron Galactic Element.Recorder (TIGER) instrument was launched in December 2001 from McMurdo, Antarctica. TIGER is a cosmic-ray telescope that uses four scintillation counters, two Cherenkov detectors and a scintillating fiber hodoscope to determine the charge (Z) and energy of a particle. During the 31.8 day flight it measured ~100 ultra-heavy galactic cosmic-ray (GCR) events with Z > 30 and demonstrated charge resolution sufficient to resolve the individual elemental abundances in this region. The abundances of the Ultra-Heavy GCRs in this range can be used to distinguish between GCR source models. We present our measurements and discuss the implications for the GCR source.

Additional Information

Copyright Universal Academy Press Inc. This research was supported by the National Aeronautics and Space Adminstration under grant NAGS-5078. JTL was futher supported by a NASA GSRP grant NGT5-50240.

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Identifiers

Eprint ID
56334
Resolver ID
CaltechAUTHORS:20150403-091555049

Funding

NASA
NAGS-5078
NASA
NGT5-50240

Dates

Created
2015-04-05
Created from EPrint's datestamp field
Updated
2020-03-09
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Caltech Custom Metadata

Caltech groups
Space Radiation Laboratory
Other Numbering System Name
Space Radiation Laboratory
Other Numbering System Identifier
203-41