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PET: A Proton/Electron Telescope for Studies of Magnetospheric, Solar, and Galactic Particles

Cook, W. R. and Cummings, A. C. and Cummings, J. R. and Garrard, T. L. and Kecman, B. and Mewaldt, R. A. and Selesnick, R. S. and Stone, E. C. and Baker, D. N. and von Rosenvinge, T. T. and Blake, J. B. and Callis, L. B. (1993) PET: A Proton/Electron Telescope for Studies of Magnetospheric, Solar, and Galactic Particles. IEEE Transactions on Geoscience and Remote Sensing, 31 (3). pp. 565-571. ISSN 0196-2892. http://resolver.caltech.edu/CaltechAUTHORS:20140512-103823930

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Abstract

The proton/electron telescope (PET) on SAMPEX (Solar, Anomalous, and Magnetospheric Particle Explorer) 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 ~1 to ~30 MeV and H and He nuclei from ~20 to ~300 MeV/nucleon, with isotope resolution of H and He extending from ~20 to ~80 MeV/nucleon. 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 O_3 depletion. In addition, PET will complement studies of the elemental and isotopic composition of energetic heavy (Z>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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/36.225523DOIArticle
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=225523PublisherArticle
Additional Information:© Copyright 1993 IEEE. Manuscript received August 3, 1992; revised January 21, 1993. This work was supported by NASA under Contract NAS5-30704 and Grant NAGW-1919. Essential contributions to the implementation of the PET experiment were made by J. H. Marshall and T. Harrington of MDH, Ind; Ball Brothers Western Laboratories under the direction of D. Snyder and G. Takahashi; D. Alami of Space Instruments, Inc.; the Applied Space Division of Perkin-Elmer, under the direction of N. Preketes; F. Shaffer of Goddard Space Flight Center; and W. Althouse, B. Gauld, K. Hargreaves, and R. Vogt of Caltech.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAS5-30704
NASANAGW-1919
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1992-04
Record Number:CaltechAUTHORS:20140512-103823930
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140512-103823930
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45675
Collection:CaltechAUTHORS
Deposited By: Deborah Miles
Deposited On:12 May 2014 22:31
Last Modified:12 May 2014 22:31

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