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Medium Energy Cosmic Rays, 1-500 MeV/n, Z = 1-28; Electrons: 2-10 MeV

NSSDCA ID: 1978-079A-04

Mission Name: ISEE 3
Principal Investigator:Dr. Tycho T. Von Rosenvinge


This experiment was designed to study the composition of solar cosmic rays from hydrogen through iron and the elemental abundance of galactic cosmic rays. Three cosmic-ray telescopes, plus a proportional counter for measurement of electrons and X rays, comprised the instrumentation. Nuclei with Z between 1 and 30 were measured in various energy windows in the range 1 to 500 MeV/nucleon. Unit mass resolution was obtained for isotopes with Z equal to 1, 2, and 3 to 7 in the energy ranges 4 to 70, 1 to 70, and 30 to 140 MeV/nucleon, respectively. Electrons were measured in the energy range approximately 2 to 10 MeV. Anisotropy information was obtained for the electrons and nuclei with Z equal to 1 to 26.

Alternate Names

  • ISEE3/MediumEnergyCosmicRays,1-500MeV/n,Z=1-28;Electrons:2-10MeV

Facts in Brief

Mass: 6.5 kg
Power (avg): 2.9 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
Dr. Frank B. McDonaldOther InvestigatorNASA Headquarters
Dr. James H. TrainorOther InvestigatorNASA Goddard Space Flight Center
Dr. Lennard A. FiskOther InvestigatorUniversity of New
Dr. M.A. I. Van HollebekeOther InvestigatorUniversity of Maryland
Dr. Tycho T. Von RosenvingePrincipal InvestigatorNASA Goddard Space Flight

Selected References

  • Von Rosenvinge, T. T., et al., Medium energy cosmic ray experiment for ISEE-C, IEEE Trans. Geosci. Electron., GE-16, No. 3, 208-212, doi:10.1109/TGE.1978.294548, July 1978.
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