PET - A proton/electron telescope for studies of magnetospheric, solar, and galactic particles

Details PET - A proton/electron telescope for studies of magnetospheric, solar, and galactic particles PET - A proton/electron telescope for studies of magnetospheric, solar, and galactic particles

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993itgrs..31..565c&link_type=abstract

IEEE Transactions on Geoscience and Remote Sensing (ISSN 0196-2892), vol. 31, no. 3, p. 565-571.

Physics

Nuclear Physics

59

Cosmic Rays, Energetic Particles, Radiation Counters, Solar Radiation, Spaceborne Telescopes, Electron Energy, Electron Precipitation, Magnetospheric Electron Density, Nuclei (Nuclear Physics), Relativistic Particles

Scientific paper

The Proton/Electron Telescope (PET) on SAMPEX is designed to provide measurements of energetic electrons and light nuclei from solar, galactic, and magnetospheric sources. PET is an all solid-state system that will measure the differential energy spectra of electrons from about 1 to about 30 MeV and H and He nuclei from about 20 to about 300 MeV/nuc, with isotope resolution of H and He extending from about 20 to about 80 MeV/nuc. As SAMPEX scans all local times and geomagnetic cutoffs over the course of its near-polar orbit, PET will characterize precipitating relativistic electron events during periods of declining solar activity, and it will examine whether the production rate of odd nitrogen and hydrogen molecules in the middle atmosphere by precipitating electrons is sufficient to affect O3 depletion. In addition, PET will complement studies of the elemental and isotopic composition of energetic heavy (Z greater than 2) nuclei on SAMPEX by providing measurements of H, He, and electrons. Finally, PET has limited capability to identify energetic positrons from potential natural and man-made sources.

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