Titre du document

The measurement at balloon heights of the low energy hydrogen and helium isotopes in the cosmic radiation at solar minimum, 1965

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Nom du Corpus

AstroConcepts

Auteur(s)
  • D.J. Hofmann 1
  • J.R. Winckler 1
Affiliation(s)
  • School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota, U.S.A.
Résumé

A dE/dx-E scintillation counter device was flown at absolute solar minimum, in terms of particle influx, on 12 May, 1965 from Barrow, Alaska. Due to the resolution characteristics of the instrument, isotopic separation of hydrogen and helium nuclei in the cosmic radiation was possible. Twenty-six hours of data obtained in the atmospheric depth interval from 3·5 to 5 g/cm2 are analyzed to determine the energy spectrum of primary galactic protons in the primary energy interval 70–150 MeV, an upper limit on the primary deuteron flux in the interval 45–60 MeV/nucleon, the spectrum of primary He3 nuclei in the energy interval 90–150 MeV/nucleon, and the spectrum of primary He4 nuclei in the energy interval 80–120 MeV/nucleon. The ratio of He3 nuclei to total helium nuclei at the same energy/nucleon was found to be 0·11 ± 0.5 at 100 MeV/nucleon.

Langue(s) du document
Anglais
Année de publication
1967
Revue

Planetary and Space Science

Éditeur
Elsevier
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Non
Version de PDF
1.2
Score de qualité du texte
6.28
Nom du concept
  • Landau fluctuations
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - physics & astronomy ; 3 - astronomy & astrophysics
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences biologiques et medicales ; 3 - sciences biologiques fondamentales et appliquees. psychologie ; 4 - biophysique des tissus, organes et organismes
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Space and Planetary Science
  • 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Astronomy and Astrophysics
Catégories WoS
  • 1 - science ; 2 - astronomy & astrophysics
Identifiant ISTEX
61B7DEE9783D21A7D552FCADCA4930C5588E6A95
ark:/67375/6H6-D157QFSR-G
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