Measurements of cosmic-ray energy spectra with the 2nd CREAM flight
P. Maestro, H. S. Ahn, P. Allison, M. G. Bagliesi, L. Barbier, J. J., Beatty, G. Bigongiari, 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, A., Malinine, P. S. Marrocchesi, S. Minnick, S. I. Mognet
TL;DR
This paper reports on the second flight of the CREAM balloon experiment, which collected 28 days of data to measure cosmic-ray energy spectra and composition at very high energies, providing new direct measurements of CR nuclei from carbon to iron.
Contribution
It presents the first direct measurements of cosmic-ray nuclei intensities from carbon to iron at high energies during the second CREAM flight.
Findings
Measured cosmic-ray energy spectra for nuclei from carbon to iron.
Collected 28 days of high-altitude data during Antarctic flight.
Provided preliminary absolute intensity measurements of CR nuclei.
Abstract
During its second Antarctic flight, the CREAM (Cosmic Ray Energetics And Mass) balloon experiment collected data for 28 days, measuring the charge and the energy of cosmic rays (CR) with a redundant system of particle identification and an imaging thin ionization calorimeter. Preliminary direct measurements of the absolute intensities of individual CR nuclei are reported in the elemental range from carbon to iron at very high energy.
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