First measurements of cosmic-ray nuclei at high energy with CREAM

S. P. Wakely, H. S. Ahn, P. Allison, M. G. Bagliesi, J. J. Beatty, G. Bigongiari, P. Boyle, T. J. Brandt, J. T. Childers, N. B. Conklin, S. Coutu, M. A. DuVernois, O. Ganel, J. H. Han, J. A. Jeon, K. C. Kim, M. H. Lee, L. Lutz, P. Maestro, A. MalinineP. S. Marrocchesi, S. Minnick, S. I. Mognet, S. W. Nam, S. Nutter, I. H. Park, J. H. Park, N. H. Park, E. S. Seo, R. Sina, S. P. Swordy, J. Wu, J. Yang, Y. S. Yoon, R. Zei, S. Y. Zinn

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11 Scopus citations


The balloon-borne cosmic-ray experiment CREAM-I (Cosmic-Ray Energetics And Mass) recently completed a successful 42-day flight during the 2004-2005 NASA/NSF/NSBF Antarctic expedition. CREAM-I combines an imaging calorimeter with charge detectors and a precision transition radiation detector (TRD). The TRD component of CREAM-I is targeted at measuring the energy of cosmic-ray particles with charges greater than Z ∼ 3. A central science goal of this effort is the determination of the ratio of secondary to primary nuclei at high energy. This measurement is crucial for the reconstruction of the propagation history of cosmic rays, and consequently for the determination of their source spectra. First scientific results from this instrument are presented.

Original languageEnglish (US)
Pages (from-to)403-408
Number of pages6
JournalAdvances in Space Research
Issue number3
StatePublished - Aug 5 2008

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • General Earth and Planetary Sciences


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