The cosmic-ray energy spectrum above 1017eV
- 1 July 1986
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear Physics
- Vol. 12 (7), 653-674
- https://doi.org/10.1088/0305-4616/12/7/015
Abstract
The full set of data obtained by the Sydney University giant airshower recorder (SUGAR) has been reanalysed to take into account the effects of afterpulsing in the photomultiplier tubes. Event data have been used to produce a spectrum of 'equivalent vertical-muon number' and from this, two model-dependent primary-energy spectra are obtained. All three spectra show good evidence for the 'ankle': a flattening at 1019 eV. There is no sign of the cut-off which would be expected from the effects of the universal black-body radiation.Keywords
This publication has 17 references indexed in Scilit:
- Evidence for a High-Energy Cosmic-Ray Spectrum CutoffPhysical Review Letters, 1985
- On estimating the energy of giant air-shower primariesJournal of Physics G: Nuclear Physics, 1983
- A recalculation of the upper end of the cosmic ray energy spectrumJournal of Physics G: Nuclear Physics, 1976
- The calibration of large-area liquid scintillation counters used in a cosmic ray experimentJournal of Physics G: Nuclear Physics, 1976
- The energy calibration of the Sydney air shower arrayJournal of Physics G: Nuclear Physics, 1975
- The upper end of the observed cosmic ray energy spectrumJournal of Physics A: Mathematical, Nuclear and General, 1974
- Photomultiplier noise statisticsJournal of Physics D: Applied Physics, 1972
- Preliminary results from the Sydney University Giant Air Shower RecorderCanadian Journal of Physics, 1968
- Design of an array to record air showers of energy up to 1021 eVCanadian Journal of Physics, 1968
- Cosmic Ray ShowersAnnual Review of Nuclear Science, 1960