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

Geier, S. and Barbier, L. M. and Binns, W. R. and Christian, E. R. and Cummings, J. R. and de Nolfo, G. A. and Israel, M. H. and Link, J. T. and Mewaldt, R. A. and Mitchell, J. W. and Schindler, S. M. and Scott, L. M. and Stone, E. C. and Streitmatter, R. E. and Waddington, C. J. (2003) Possible Detection of Large Solar Particle Event at Balloon Altitudes during the 2001-2002 TIGER Flight. In: Proceedings of the 28th International Cosmic Ray Conference. International Union of Applied Physics , Tokyo, Japan, pp. 3261-3264.

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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.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Geier, S.0000-0002-3948-9339
Binns, W. R.0000-0001-6110-3407
Christian, E. R.0000-0003-2134-3937
de Nolfo, G. A.0000-0002-3677-074X
Israel, M. H.0000-0002-8104-208X
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
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
Group:Space Radiation Laboratory
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Space Radiation Laboratory2003-42
Record Number:CaltechAUTHORS:20150403-093115681
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56337
Deposited By: Deborah Miles
Deposited On:05 Apr 2015 22:36
Last Modified:09 Mar 2020 13:19

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