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  • Other Sources  (3)
  • SPACECRAFT INSTRUMENTATION
  • 1
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    RAPID: The imaging energetic particle spectrometer on Cluster (1993)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The RAPID spectrometer for the Cluster mission, an advanced particle detector for the analysis of suprathermal plasma distributions in the energy range from 20 to 400 keV and from 2 keV/nuc to 1500 keV for electrons and ions, respectively, is presented. Novel detector concepts in combination with pinhole acceptance permit the measurement of angular distributions over a range of 180 deg in polar angle for either species. The detection principle for the ionic component is based on a two dimensional analysis of a particle's velocity and energy. Electrons are identified by the well known energy range relationship. The detection techniques are described and selected areas in geospace are used to highlight the scientific objectives of this investigation.
    Keywords: SPACECRAFT INSTRUMENTATION
    Type: ESA, Cluster: Mission, Payload, and Supporting Activities; p 185-217
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    A miniaturized pointing mount for Spacelab missions (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A Miniaturized Pointing Mount (MPM) for Spacelab missions is defined and simulation results are described. This mount is proposed to complement the Spacelab Instrument Pointing System (IPS). It uses the same mount isolator concept as the Spacelab IPS but is much more efficient and economical for the accommodation of small shuttle payloads. The MPM is built from star tracker assemblies left over from the Apollo Telescope Mount program thereby assuring low cost and development risk. Simulation results indicate a high level of instrument stability can be expected. The short development time of the MPM would permit it to serve as a precursor to the Spacelab IPS for verifying critical new concepts such as the mount isolation and hold down mechanisms.
    Keywords: SPACECRAFT INSTRUMENTATION
    Type: NASA-TM-X-64972
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    The ISEE 1 and 2 Medium Energy Particles Experiment (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The Medium Energy Particles Experiment (MEPE) on board ISEE 1 and 2 consists of the WIM instrument on ISEE 1 and the KED instrument on ISEE 2. Both instruments employ solid-state detectors and magnetic analysis to measure the angular, energy, and intensity distributions of protons (ions) above 24 keV and electrons above 20 keV. The WIM instrument also includes a composition measurement employing Delta E-by-E and time-of-flight techniques. Three-parameter analysis is performed above 250 keV/nucleon, and single parameter analysis is performed above 125 keV/nucleon for helium through oxygen. Three-dimensional angular distributions are obtained through the use of a scan platform in the WIM instrument and multiple detector heads in the KED instrument. A variety of operational modes are used to optimize data collection from both instruments. Resolutions up to 128 channels in energy, 192 samples over the unit sphere in angle, and 0.095 sec in time are available.
    Keywords: SPACECRAFT INSTRUMENTATION
    Type: IEEE Transactions on Geoscience Electronics; GE-16; July 197
    Format: text
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    NASA TECHNICAL REPORTS
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