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 parti-cle...

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Bibliographic Details
Main Authors: G. A. De Nolfo, S. Geier, M. H. Israel, R. A. Mewaldt, J. W. Mitchell, C. J. Waddington
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.535.2732
http://www-rccn.icrr.u-tokyo.ac.jp/icrc2003/PROCEEDINGS/PDF/441.pdf
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Summary: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 parti-cle. 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 re-solve 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. 1. Introduction and