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Contribution Oral
Composition Measurements near the Second Knee with the Telescope Array Low-Energy Extension (TALE)
Speakers
- Prof. John BELZ
Primary authors
- Prof. John BELZ (University of Utah)
Co-authors
- Dr. Robert CADY (University of Utah)
Files
Abstract content
Cosmic rays with energies between 10^16.5 and 10^18.5 eV exhibit a rich range of features. The energy spectrum changes index at at least two points, known as the "second knee" and the "ankle". There appears to be a composition change in this energy regime as well, which may indicate a shift in predominance from galactic to extragalactic sources. The Telescope Array Low-Energy Extension - planned for construction in Millard County, Utah, USA - stands well poised to make decisive simultaneous measurements of cosmic ray energy spectra and composition in this transition region. Here, we present the results of simulation studies relevant to the design of the TALE detectors, and estimate the sensitivity of TALE to composition changes in the 10^17 eV decade.
If this papers is presented for a collaboration, please specify the collaboration
Telescope Array
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. 5 (HE part 2), pages 1163-1166