PDS_VERSION_ID       = PDS3
LABEL_REVISION_NOTE  = "2006-02-15, initial
                        2006-04-11, GEO:jgw, edited"
RECORD_TYPE          = STREAM

OBJECT               = INSTRUMENT
  INSTRUMENT_HOST_ID = RELAB
  INSTRUMENT_ID      = NIC740_RELAB

  OBJECT             = INSTRUMENT_INFORMATION
    INSTRUMENT_NAME  = "RELAB NICOLET 740 FOURIER TRANSFORM INFRARED 
                        SPECTROMETER"
    INSTRUMENT_TYPE  = "SPECTROMETER"
    INSTRUMENT_DESC  = "
    
    Instrument Overview
    ===================

      Operating Spectral Range: Nominal (1.0 to 25 micrometers); 
        Possible (0.75 to 25 micrometers)

        Mode Range (micrometer) Light Source Beam Splitter Detector
        ---- ------------------ ------------ ------------- --------
         A       0.75-1.1          Quartz       Quartz     Silicon
         B       1.0-3.5           Quartz       Quartz       PbSe
         C       1.5-5.0           Glowbar        KBr        PbSe
         D       1.8-25.0          Glowbar        KBr        DTGS
         E       1.8-25.0          Glowbar        KBr      MCT (cooled)

      Sampling Interval: 16, 8, 4, 3, 1 or 0.5 cm**-1

      Default:  8 cm**-1 (0.9-3.2 micrometers),
                4 cm**-1 (1.8-26 micrometers)

      Geometry: Biconical - on axis for multiple sample holder
                Biconical - off axis for single measurement (and
                  environment chamber) 
                Transmission (normal incidence)

      Sample:   Particulate sample or soil (reflectance):
                  Measured horizontal and uncovered.
                  Typical amount required is 500 mg.
                  Sample should be no smaller than 20 mg.
                  No more than 1 g is necessary in any case.
                Chip (reflectance):
                  Measured horizontal and uncovered.
                  Regions to be measured should be no smaller than 1 mm.
                  Maximum sample size is 1 cm in diameter.
                Thin section and single crystal (transmission):
                  Measured vertical, attached to an appropriate aperture
                    board.
                  Regions to be measured should be no smaller than 1.5 
                    mm.
                  Surface should be polished and clean (no carbon
                    coating).

      Reference Standard: Brushed gold (reflectance)
                          Blank (transmittance)

      FT-IR Spectromter: 

        The Nicolet 740 is operational for samples of powders and
        small chips (<1 cm).  Infrared biconical reflectance spectra
        are produced relative to a gold standard.  Infrared spectra
        are typically scaled to and merged with bidirectional
        reflectance spectra to produce continuous spectra from 0.3 to
        26 m.

        An environment chamber is operational with the Nicolet (10-3
        Torr to 2 atmospheres; mixtures of up to 4 gases; temperatures
        200-400 K).  Use of the environment chamber requires user
        training and on-site operation.
        
      Please see [BISHOPETAL1995] for additional information.
    
    "

  END_OBJECT         = INSTRUMENT_INFORMATION

  OBJECT             = INSTRUMENT_REFERENCE_INFO
    REFERENCE_KEY_ID = "BISHOPETAL1995"
  END_OBJECT         = INSTRUMENT_REFERENCE_INFO

END_OBJECT           = INSTRUMENT

END