Investigating the 2nd knee: The KASCADE-Grande experiment

Details Investigating the 2nd knee: The KASCADE-Grande experiment Investigating the 2nd knee: The KASCADE-Grande experiment

2005-08-12

arxiv.org/abs/astro-ph/0508286v1

Astronomy and Astrophysics

Astrophysics

10 pages; Invited talk at the "Workshop on Physics of the End of the Galactic Cosmic Ray Spectrum", Aspen, USA, April 25 - 29,

Scientific paper

Recent results from the multi-detector set-up KASCADE on measurements of cosmic rays in the energy range of the so called "first" knee (at approx. 3 PeV) indicate a distinct knee in the energy spectra of light primary cosmic rays and an increasing dominance of heavy ones towards higher energies. This leads to the expectation of knee-like features of the heavy primaries at around 100 PeV. To investigate this energy region KASCADE has recently been extended by a factor 10 in area to the new experiment KASCADE-Grande. Main results of KASCADE as well as set-up, capabilities, and status of KASCADE-Grande are presented.

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