The Energy Spectrum of Primary Cosmic Ray Nuclei above 1 Tev Per Nucleon.
Abstract
Two balloon-borne 30x40 cm lead-emulsion chambers were exposed in Antarctica for an unprecedented 204 hours and 3.9 gm/cm^2 overburden pressure. This flight functioned as both an independent set of data, and as a feasibility "test" for a series of future Antarctic long-duration exposures. Energy spectra were obtained for major charge groups (proton, helium, carbon through oxygen, neon through sulphur, and iron) by directly examining each high energy particle that interacted in the chamber. New efficient analysis methods (primarily for use in future flights) were developed and tested. Our spectra are consistent with both theory and previously-published data.
- Publication:
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Ph.D. Thesis
- Pub Date:
- January 1995
- Bibcode:
- 1995PhDT.........6O
- Keywords:
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- Physics: Astronomy and Astrophysics, Physics: Elementary Particles and High Energy