Computer Science
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8023246b&link_type=abstract
Unknown
Computer Science
Cerenkov Counters, Cosmic Rays, Spectrometers, Balloon-Borne Instruments, Calorimeters, Energy Spectra, Interstellar Matter, Ionization, Monte Carlo Method, Nucleons
Scientific paper
The results from a balloon-borne gas Cherenkov counter (threshold 16.5 GeV/nucleon) and an ionization spectrometer are presented. The gas Cherenkov counter provides an absolute energy distribution for the response of the calorimeter for 5 or = Z 26 nuclei of cosmic rays. The contribution of scintillation to the gas Cherenkov pulse height was obtained by independently selecting particles below the gas Cherenkov threshold using the ionization spectrometer. Energy spectra were derived by minimizing the chi squared between Monte Carlo simulted data and flight data. Best fit power laws, dN/dE = AE-gamma, were determined for C, N, O, Ne, Mg, and Si. The power laws, all consistent with E (-2.7) are not good fits to the data. A better fit is obtained using the spectrum derived from the spectrometer. The data from the ionization calorimeter and the gas Cherenkov are thus completely self-consistent.
Arens John F.
Balasubrahmanyan V. K.
Ormes Johnathan F.
Simon Manfred
Siohan F.
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