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Record Details

Record 58 of 19968
The Galileo Energetic Particles Detector
External Online Source: doi:10.1007/BF00216863
Author and Affiliation:
Williams, D. J.(NASA, Washington, DC, United States)
Mcentire, R. W.(NASA, Washington, DC, United States)
Jaskulek, S.(Johns Hopkins University, Laurel, MD, United States)
Wilken, B.(Max-Planck-Institut fuer Aeronomie, Katlenburg-Lindau, Federal Republic of Germany, United States)
Abstract: Amongst its complement of particles and fields instruments, the Galileo spacecraft carries an Energetic Particles Detector (EPD) designed to measure the characteristics of particle populations important in determining the size, shape, and dynamics of the Jovian magnetosphere. To do this the EPD provides 4pi angular coverage and spectral measurements for Z greater than or equal to 1 ions from 20 keV to 55 MeV, for electrons from 15 keV to greater than 11 MeV, and for the elemental species helium through iron from approximately 10 keV/nucl to 15 MeV/nucl. Two bidirectional telescopes, mounted on a stepping platform, employ magnetic deflection, energy loss versus energy, and time-of-flight techniques to provide 64 rate channels and pulse height analysis of priority selected events. The EPD data system provides a large number of possible operational modes from which a small number will be selected to optimize data collection during the many encounter and cruise phases of the mission. The EPD employs a number of safeing algorithms that are to be used in the event that its self-checking procedures indicate a problem. The instrument and its operation are described.
Publication Date: May 01, 1992
Document ID:
19920061970
(Acquired Nov 22, 1995)
Accession Number: 92A44594
Subject Category: SPACECRAFT INSTRUMENTATION
Document Type: Journal Article
Publication Information: Space Science Reviews (ISSN 0038-6308); 60; 1-4,; 385-412
Publisher Information: Netherlands
Contract/Grant/Task Num: N00039-89-C-0001
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
Description: 28p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ENERGETIC PARTICLES; GALILEO SPACECRAFT; JUPITER ATMOSPHERE; PLANETARY MAGNETOSPHERES; RADIATION COUNTERS; SATELLITE-BORNE INSTRUMENTS; HEAVY IONS; HELIUM IONS
Imprint And Other Notes: Space Science Reviews (ISSN 0038-6308), vol. 60, no. 1-4, May 1992, p. 385-412. Research supported by NASA.
Miscellaneous Notes: Research supported by NA
Availability Source: Other Sources
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