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PET - A proton/electron telescope for studies of magnetospheric, solar, and galactic particlesThe 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.
Document ID
19930068209
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cook, Walter R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cummings, Alan C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cummings, Jay R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Garrard, Thomas L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kecman, Branislav
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mewaldt, Richard A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Selesnick, Richard S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stone, Edward C.
(California Inst. of Technology Pasadena, United States)
Baker, Daniel N.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Von Rosenvinge, Tycho T.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 16, 2013
Publication Date
May 1, 1993
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 31
Issue: 3
ISSN: 0196-2892
Subject Category
Spacecraft Instrumentation
Accession Number
93A52206
Funding Number(s)
CONTRACT_GRANT: NAS5-30704
CONTRACT_GRANT: NAGW-1919
Distribution Limits
Public
Copyright
Other

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