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Isotopic Composition of Heavy Cosmic Rays.


N7331711

Publication Date 1973
Personal Author Maehl, R. C.; Isreal, M. H.; Klarmann, J.
Page Count 28
Abstract The mean isotopic composition was measured of even-charge cosmic ray elements with 14 equal to or less than 26 near 0.8 GeV/N using a balloon-borne ionization-chamber/Cerenkov-counter detector system. The experimental method makes use of the geomagnetic field as a magnetic spectrometer. Results indicate that the most abundant isotopes at the cosmic ray source are Si-28, S-32, and Ca-40, like the solar system; but Fe-54, unlike the solar system. (Author)
Keywords
  • Balloon sounding
  • Cosmic rays
  • Ionization chambers
  • Isotopes
  • Calcium isotopes
  • Geomagnetism
  • Silicon isotopes
  • Sulfur isotopes
Source Agency
  • National Aeronautics and Space Administration
NTIS Subject Category
  • 54C - Astrophysics
Corporate Authors Washington Univ., St. Louis, MO. Dept. of Physics.
Document Type Technical Report
NTIS Issue Number 197324
Contract Number
  • NGR-26-008-001
Isotopic Composition of Heavy Cosmic Rays.
Isotopic Composition of Heavy Cosmic Rays.
N7331711

  • Balloon sounding
  • Cosmic rays
  • Ionization chambers
  • Isotopes
  • Calcium isotopes
  • Geomagnetism
  • Silicon isotopes
  • Sulfur isotopes
  • National Aeronautics and Space Administration
  • 54C - Astrophysics
  • NGR-26-008-001
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