3-11 July 2007
Merida, Mexico
Mexico/General timezone
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Contribution Poster

Merida, Mexico - Regency (Hyatt)

All-Particle Spectrum Measured by the ATIC Experiment

Speakers

  • Dr. Hoseok AHN

Primary authors

  • Dr. Hoseok AHN (Institute for Physical Science and Technology, University of Maryland)

Co-authors

  • J. H. ADAMS (Marshall Space Flight Center)
  • J. ISBERT (Louisiana State University)
  • K. C. KIM (Institute for Physical Science and Technology, University of Maryland)
  • E. KOUZNETSOV (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • M. PANASYUK (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • A. PANOV (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • W. K. H. SCHMIDT (Max-Planck Institute for Solar System Research)
  • E. S. SEO (Institute for Physical Science and Technology, University of Maryland)
  • R. SINA (Institute for Physical Science and Technology, University of Maryland)
  • N. V. SOKOLSKAYA (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • J. Z. WANG (Institute for Physical Science and Technology, University of Maryland)
  • G. BASHINDZHAGYAN (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • J. P. WEFEL (Louisiana State University)
  • J. WU (Institute for Physical Science and Technology, University of Maryland)
  • V. ZATSEPIN (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • K. E. BATKOV (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
  • J. CHANG (Purple Mountain Observatory, Chinese Academy of Sciences)
  • M. CHRISTL (Marshall Space Flight Center)
  • A. R. FAZELY (Southern University)
  • O. GANEL (Institute for Physical Science and Technology, University of Maryland)
  • R. M. GUNASINGHA (Southern University)
  • T. G. GUZIK (Louisiana State University)

Abstract content

The Advanced Thin Ionization Calorimeter (ATIC), a balloon-borne experiment, is designed to investigate the composition and energy spectra of cosmic rays of charge Z = 1 to 26 over the energy range ~ 10^11 - ~ 10^14 eV. The instrument consists of a silicon matrix charge detector, plastic scintillator strip hodoscopes interleaved with graphite interaction targets, and an 18 radiation length deep, fully active bismuth germanate (BGO) calorimeter. ATIC has had two successful long duration balloon (LDB) flights launched from McMurdo Station, Antarctica in 2000 and 2002. In this paper, we present the all-particle spectrum extracted from data collected during the ATIC flights, and compare it with results from other experiments at both lower and higher energies.

Reference

Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 2 (OG part 1), pages 79-82