NSSDCA ID: 1963-046A-03
Mission Name: IMP-AA charged-particle, solid-state telescope was used to measure the range and energy loss of galactic and solar cosmic rays. The experiment was designed to study particle energies (energy per nucleon intervals approximately proportional to Z squared/A) and charge spectra (Z<=6). The detector was oriented normal to the spacecraft spin axis. The detector accumulators for each energy interval were telemetered six times every 5.46 min. Each accumulation period was about 40 s (the initial spacecraft spin period was about 2 s). The output from two 128-channel, pulse-height analyzers was obtained for one incident particle every 41 s and read out along with the detector accumulations. A malfunction limited alpha studies to particles with E>30 MeV. For further details, see Fan et al., J. Geophys. Res., v. 70, p. 3515, 1965.
Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Gordon Lentz | General Contact | University of Chicago | |
Dr. Charles Y. Fan | Other Investigator | University of Arizona | |
Prof. George Gloeckler | Other Investigator | University of Maryland | gg10@umail.umd.edu |
Dr. John A. Simpson | Principal Investigator | University of Chicago |