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Measurement of the Absolute Flux and Energy Spectrum of Electrons

NSSDCA ID: 1968-014A-12

Mission Name: OGO 5
Principal Investigator:Prof. Hendrik C. Van de Hulst


This experiment measured the absolute flux and energy spectrum of energetic galactic cosmic ray electrons (0.5 to 10 GeV) which are believed to be the source of synchrotron radiation which causes the nonthermal galactic radio noise. Protons (20 to 100 GeV) and gamma rays above 500 MeV were also measured. The instrument consisted of three collinear scintillators separated by lead and aluminum slabs, respectively, and placed on top of a high density lead-glass Cerenkov counter. A surrounding plastic scintillator anticoincidence sensor was also used. The experiment functioned normally throughout the mission. See Rogowski, L. K., et al., IEEE Trans. on Nucl. Sci., n. 1, p. 352, 1969, for further details.

Alternate Names

  • OGO5/MeasurementoftheAbsoluteFluxandEnergySpectrumofElectrons


  • Astronomy: Cosmic Ray
  • Space Physics: Magnetospheric Studies
  • Space Physics: Heliospheric Studies

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. M. N. LindOther InvestigatorNetherlands Institute
Mr. D. TankaOther InvestigatorNetherlands Institute
Prof. Hendrik C. Van de HulstPrincipal InvestigatorNetherlands Institute
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