The Energy Spectrum of 10 - 50 BeV/nuc. Cosmic Rays
Abstract
We have obtained measurements of the energy spectra of cosmic ray nuclei with charge Z equals 5-14 in the 10-50 BeV/nuc energy interval from a gas Cerenkov detector flown aboard a high altitude balloon at Sioux Falls, South Dakota in September, 1974. The gas Cerenkov detector consists of a pressurized light diffusion chamber viewed by two separate banks of photomultiplier tubes. An analysis of the two signals permits a very effective rejection of background events as well as an understanding of the sources of broadening to be removed in the extraction of kinetic energy spectra from the gas Cerenkov detector pulse height distributions. The ratio of secondary to primary nuclei display a decrease with increasing energy as reported by other investigators.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 1975
- Bibcode:
- 1975ICRC...12.4107L
- Keywords:
-
- Balloon-Borne Instruments;
- Cerenkov Counters;
- Cosmic Rays;
- Energy Spectra;
- High Altitude Balloons;
- Kinetic Energy;
- Nuclei (Nuclear Physics);
- Particle Telescopes;
- Photomultiplier Tubes;
- Radiation Measurement;
- Relativistic Particles;
- Space Radiation