--------------------------------------------------------- NSSDC Master Catalog Display Experiment --------------------------------------------------------- Cosmic-Ray Spectra NSSDC ID: 72-012A-12 Mission Name: Pioneer 10 Principal Investigator: McDonald Description This experiment consisted of three multi-element solid-state telescopes, all looking normal to the spacecraft spin axis. The high-energy telescope (HET) consisted of five collinear sensors, and measured stopping particles (Z = 1 to 8) in the energy range 20 to 50 MeV/nucleon and penetrating particles in the range 50 to 800 MeV/nucleon. Charge resolution for penetrating particles was possible up to 200 MeV/nucleon. The first low-energy telescope (LET-I) had four elements and measured stopping (Z = 1 to 8) particles in the energy range 3 to 32 MeV/nucleon. The second low-energy telescope (LET-II) had three elements and measured stopping electrons between 50 and 1000 keV and stopping protons between 50 keV and 20 MeV. For each telescope, count rates were obtained for each of several sensor coincidence-anticoincidence modes. Some of the rates from each telescope were sectored into eight octants in the spacecraft spin plane. In addition, three-sensor pulse-height analysis, with priority schemes favoring the analysis of heavier particles, was associated with each telescope. ------------------- Discipline(s) Planetary Science/Fields and Particles Space Physics/Heliospheric Studies --------------------------------------------------------- NSSDC Master Catalog Display Experiment Personnel --------------------------------------------------------- Cosmic-Ray Spectra NSSDC ID: 72-012A-12 Principal Investigator Dr. Frank B. McDonald Institute for Physical Science and Technology University of Maryland College Park, MD 20742 Electronic Mail SM27@UMAIL.UMD.EDU (INTERNET) EAST::"SM27@UMAIL.UMD.EDU" (NSI/DECNET) ----- Other Investigator Dr. Bonnard J. Teegarden GSFC-Code 661 Electronic Mail TEEGARDEN@TGRS.GSFC.NASA.GOV (INTERNET) ----- Dr. James H. Trainor GSFC-Code 100 ----- Prof. William R. Webber Department of Astronomy University of New Hampshire Box 30001/ Dept 4500 Las Cruces, NM 88003-0001 Electronic Mail BWEBBER@NMSU.EDU (INTERNET) ----- Dr. Kenneth G. McCracken Minerals Research Laboratory CSIRO Division of Mineral Physics PO Box 136 North Ryde, NSW 2113 Australia ----- Dr. Edmond C. Roelof Applied Physics Laboratory Johns Hopkins University Johns Hopkins Road Laurel, MD 20723-6099 Electronic Mail APLSP::ROELOF (NSI/DECNET) ----- NSSDC Contact Dr. John F. Cooper GSFC-Code 632 Electronic Mail JCOOPER@NSSDCA.GSFC.NASA.GOV (INTERNET) NCF::JCOOPER (NSI/DECNET) ----- --------------------------------------------------------------------------- For questions about this experiment, please contact: Dr. John F. Cooper, jcooper@nssdca.gsfc.nasa.gov, (301)286-1193 GSFC-Code 632 For questions about the NSSDC's information systems, please contact: Dr. James Thieman, thieman@nssdca.gsfc.nasa.gov, (301)286-9790 National Space Science Data Center, Code 633.2 NASA/Goddard Space Flight Center, Greenbelt, MD 20771 --------------------------------------------------------------------------- NASA Official: J. H. King, king@nssdca.gsfc.nasa.gov Last Updated: 1995-08-23 Output Generated: 1996-09-24 Programming by: E. V. Bell, II