BEXCO - Room A(101/102)
[CRD139] THE SuperTIGER 1 instrument and its long-duration Antarctic balloon flight
The SuperTIGER (Super Trans-Iron Galactic Element Recorder) long-duration balloon (LDB) instrument has measured the abundances of galactic cosmic-ray elements from 10Ne to 40Zr with high statistics and single element resolution and its measurements extend to about 56Ba. In its first flight, SuperTIGER recorded the best statistics of any instrument on UHGCR elements, with more than 1200 nuclei with atomic number Z > 30. Its measured nuclear charge resolution is excellent, with σZ ≈ 0.16e at 26Fe. From 0.8 to 10 GeV/nucleon, it has also measured the energy spectra of the more abundant elements with Z ≤ 30. SuperTIGER was developed by Washington University in St. Louis, NASA Goddard Space Flight Center, Caltech, Jet Propulsion Laboratory, and the University of Minnesota. SuperTIGER 1 launched from Williams Field, McMurdo Station, Antarctica, on December 8, 2012, flying for a record 55 days and over 2.75 revolutions around the continent, and returning data on over 50 million heavy cosmic ray nuclei including 4.2 million 26Fe. The instrument was fully recovered from Antarctica in 2014-2015 and preparations are well underway for its next flight in December 2017. Instrument and flight details, methods of charge identification, performance results from the SuperTIGER 1 LDB flight,results for 30 <= Z <= 40 in context of stringent tests of the OB association model for the origin of galactic cosmic rays, a summary of the recovery, improvements underway for SuperTIGER-2, and future flight plans will be presented in this talk. Details of the data analysis and interpretation of the results for other Z ranges are given in talks by Nathan Walsh and Allan Labrador.