2.0.0 spase://SMWG/Instrument/ISEE3/HECR High-Energy Cosmic Rays 2019-05-05T12:34:56Z This experiment was designed to determine the isotopic abundance in the primary cosmic rays for hydrogren through nickel. The instrument used a 10-element solid-state particle telescope consisting of lithium-drifted silicon detectors. Energy ranges measured ran from approximately 20 to approximately 500 MeV/nucleon. The direction of incident nuclei was obtained from a six-plane drift chamber with 2-deg resolution. spase://SMWG/Person/Mark.E.Wiedenbeck PrincipalInvestigator NSSDC's Master Catalog https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1978-079A-05 Information about the HECR instrument on the ISEE 3 mission. EnergeticParticleInstrument High-Energy Cosmic Rays spase://SMWG/Observatory/ISEE3