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Published 2003 | Version Published
Book Section - Chapter Open

Possible Detection of Large Solar Particle Event at Balloon Altitudes during the 2001-2002 TIGER Flight

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Abstract

The Trans-Iron Galactic Element Recorder (TIGER) was launched on December 21, 2001 and flew for about 32 days on a long-duration balloon mission from McMurdo Base in Antarctica. On December 26, 2001 at about 5:30 UT, a ground-level solar particle event (M7.6 flare) was observed by a number of neutron monitors. The SIS instrument aboard the ACE spacecraft measured the elemental composition and particle energy spectra up to ∼150MeV/nuc. While not designed to operate under such conditions, TIGER data for the same period show interesting variations in the count rate and composition of the measured particles that may be related to the detection of heavy Solar particles (Si to Fe) in the ∼GeV/nuc range. We discuss the TIGER observations in relation to other available data from this event.

Additional Information

Copyright Universal Academy Press Inc. We thank C. Cohen[2], J.George[4] and the rest of the SIS/CRIS instrument teams and Ace Science Center for providing the ACE data; This work supported by NASA grants NAG5-6912, NAG5-12929 and NAG5-5346

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Eprint ID
56337
Resolver ID
CaltechAUTHORS:20150403-093115681

Related works

Describes
http://adsabs.harvard.edu/abs/2003ICRC....6.3261G (URL)

Funding

NASA
NAG5-6912
NASA
NAG5-12929
NASA
NAG5-5346

Dates

Created
2015-04-05
Created from EPrint's datestamp field
Updated
2020-03-09
Created from EPrint's last_modified field

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Space Radiation Laboratory
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Space Radiation Laboratory
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2003-42