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  <Instrument>
    <ResourceID>spase://CNES/Instrument/CDPP-AMDA/Geotail/CPI</ResourceID>
    <ResourceHeader>
      <ResourceName>CPI</ResourceName>
      <AlternateName>Geotail Comprehensive Plasma Instrumentation</AlternateName>
      <ReleaseDate>2019-05-05T12:34:56.789</ReleaseDate>
      <Description>
        The objective of the Comprehensive Plasma Instrumentation (CPI) investigation is to make comprehensive observations  
        of the three-dimensional velocity distribution functions of electrons and positive ions, with identification of ion species.  
        The instrument contains three sets of quadrispherical analyzers with channel electron multipliers.  
        These three obtain three-dimensional measurements for hot plasma and solar wind electrons, for solar wind ions,  
        and for positive-ion composition measurements. The positive-ion composition measurement of the Ion Composition  
        (IC) analyzer includes five miniature imaging mass spectrometers at the exit aperture of the analyzer, and covers  
        masses from 1 to 550 u/Q at 100 eV, and 1 to 55 u/Q at 10 keV. The Hot Plasma (HP) analyzer measures electrons and ions  
        in the range 1-50,000 eV/Q. The Solar Wind (SW) analyzer measures ions from 150 to 7,000 eV/Q.  
        Sequencing of the energy analyzers and mass spectrometers, and other control functions, are provided by two microprocessors. 
      </Description>
      <Contact>
        <PersonID>spase://SMWG/Person/Louis.A.Frank</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>
        <Name>NSSDC's Master Catalog</Name>
        <URL>https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1992-044A-04</URL>
        <Description>Information about the Comprehensive Plasma Instrument</Description>
      </InformationURL> 
    </ResourceHeader>
    <InstrumentType>QuadrisphericalAnalyser</InstrumentType>
    <InvestigationName>CPI on GEOTAIL</InvestigationName>
    <ObservatoryID>spase://CNES/Observatory/CDPP-AMDA/Geotail</ObservatoryID>
  </Instrument>
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