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Cosmic-Ray Energy Spectrum, H-Fe 30 MeV/n - 15 GeV/n, Electron: 5-400 MeV

NSSDCA ID: 1978-079A-06

Mission Name: ISEE 3
Principal Investigator:Prof. Peter Meyer


This experiment was designed to study particle propagation within the solar system and the properties of the interplanetary medium. The experiment resolved electrons (differential spectrum from 5 to 400 MeV) and nuclei from protons to the iron group (differential spectra and relative abundances from 30 to 15,000 MeV/nucleon). A charged-particle telescope was used to make these measurements. It consisted of three solid-state detectors, a gas Cerenkov counter, a CsI scintillation detector, two plastic scintillation counters, and a quartz Cerenkov counter. The design of the telescope was based on that used in experiment 68-014A-09 for OGO 5.

Alternate Names

  • Cosmic Ray Electrons and Nuclei
  • ISEE3/Cosmic-RayEnergySpectrum,H-Fe30MeV/n-15GeV/n,Electron:5-400MeV

Facts in Brief

Mass: 9.1 kg
Power (avg): 4 W

Funding Agency

  • NASA-Office of Space Science (United States)


  • Space Physics: Heliospheric Studies

Additional Information

Questions and comments about this experiment can be directed to: Dr. H. Kent Hills



NameRoleOriginal AffiliationE-mail
Prof. Paul A. EvensonOther InvestigatorUniversity of
Prof. Peter MeyerPrincipal InvestigatorUniversity of Chicago

Selected References

  • Meyer, P., and P. Evenson, University of Chicago cosmic ray electrons and nuclei experiment on the H spacecraft, IEEE Trans. Geosci. Electron., GE-16, No. 3, 180-185, doi:10.1109/TGE.1978.294542, July 1978.
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