Cosmic ray charge and energy spectrum measurements using a new large area Cerenkov X dE/dx telescope

Details Cosmic ray charge and energy spectrum measurements using a new large area Cerenkov X dE/dx telescope Cosmic ray charge and energy spectrum measurements using a new large area Cerenkov X dE/dx telescope

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....2...16w&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 2 p 16-19 (SEE N85-34006 22-93)

Physics

Nuclear Physics

Abundance, Cerenkov Radiation, Cosmic Rays, Energy Spectra, Nuclei (Nuclear Physics), Telescopes, Acceleration (Physics), Beryllium, Boron, Carbon, Data Processing, Heao 3, Magnesium, Neon, Nitrogen, Oxygen, Silicon, Wave Propagation

Scientific paper

In September, 1981, a new 0.5 square meter ster cosmic ray telescope was flown to study the charge composition and energy spectrum of cosmic ray nuclei between 0.3 and 4 GeV/nuc. A high resolution Cerenkov counter, and three dE/dx measuring scintillation counters, including two position scintillators were contained in the telescope used for the charge and energy spectrum measurements. The analysis procedures did not require any large charge or energy dependent corrections, and absolute fluxes could be obtained to an accuracy approximately 5%. The spectral measurements made in 1981, at a time of extreme solar modulation, could be compared with measurements with a similar telescope made by our group in 1977, at a time of minimum modulation and can be used to derive absolute intensity values for the HEAO measurements made in 1979 to 80. Using both data sets precise energy spectra and abundance ratios can be derived over the entire energy range from 0.3 to greater than 15 GeV/nuc.

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