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The Super-TIGER Instrument to Probe Galactic Cosmic Ray OriginsSuper-TIGER (Super Trans-Iron Galactic Element Recorder) is under construction for the first of two planned Antarctic long-duration balloon flights in December 2012. This new instrument will measure the abundances of ultra-heavy elements (30Zn and heavier), with individual element resolution, to provide sensitive tests of the emerging model of cosmic-ray origins in OB associations and models of the mechanism for selection of nuclei for acceleration. Super-TIGER builds on the techniques of TIGER, which produced the first well-resolved measurements of elemental abundances of the elements 31Ga, 32Ge, and 34Se. Plastic scintillators together with acrylic and silica-aerogel Cherenkov detectors measure particle charge. Scintillating-fiber hodoscopes track particle trajectories. Super-TIGER has an active area of 5.4 sq m, divided into two independent modules. With reduced material thickness to decrease interactions, its effective geometry factor is approx.6.4 times larger than TIGER, allowing it to measure elements up to 42Mo with high statistical precision, and make exploratory measurements up to 56Ba. Super-TIGER will also accurately determine the energy spectra of the more abundant elements from l0Ne to 28Ni between 0.8 and 10 GeV/nucleon to test the hypothesis that microquasars or other sources could superpose spectral features. We will discuss the implications of Super-TIGER measurements for the study of cosmic-ray origins and will present the measurement technique, design, status, and expected performance, including numbers of events and resolution. Details of the hodoscopes, scintillators, and Cherenkov detectors will be given in other presentations at this conference.
Document ID
20110020766
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Mitchell, John W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Binns, W. R. (Washington Univ. Saint Louis, MO, United States)
Bose, R, G. (Washington Univ. Saint Louis, MO, United States)
Braun, D. L. (Washington Univ. Saint Louis, MO, United States)
Christian, E. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Daniels, W. M (NASA Goddard Space Flight Center Greenbelt, MD, United States)
DeNolfo, G. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dowkontt, P. F. (Washington Univ. Saint Louis, MO, United States)
Hahne, D. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hams, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Israel, M. H. (Washington Univ. Saint Louis, MO, United States)
Klemic, J. (California Inst. of Tech. Pasadena, CA, United States)
Labrador, A. W. (California Inst. of Tech. Pasadena, CA, United States)
Link, J. T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mewaldt, R. A. (California Inst. of Tech. Pasadena, CA, United States)
Moore, P. R. (Washington Univ. Saint Louis, MO, United States)
Murphy, R. P. (Washington Univ. Saint Louis, MO, United States)
Olevitch, M. A. (Washington Univ. Saint Louis, MO, United States)
Rauch, B. F. (Washington Univ. Saint Louis, MO, United States)
SanSebastian, F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sasaki, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Simburger, G. E. (Washington Univ. Saint Louis, MO, United States)
Stone, E. C. (California Inst. of Tech. Pasadena, CA, United States)
Waddington, C. J. (Minnesota Univ. Minneapolis, MN, United States)
Date Acquired
August 25, 2013
Publication Date
June 8, 2011
Subject Category
Astrophysics
Report/Patent Number
GSFC.O.5159.2011
GSFC.ABS.5158.2011
Distribution Limits
Public
Copyright
Public Use Permitted.

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