Thermo Scientific Nicolet Continuum, User Manual

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A variety of detectors are available to meet sampling requirements
that demand flexibility in the step and sampling area size. Used in
conjunction with the Reflex aperture, they permit accurate data
collection from samples smaller than 10 µm square. Any one of the
detectors from the tables that follow can be factory-installed. Unlike
detectors in the spectrometer, microscope detectors are not
interchangeable. You can, as required by your sample, vary the
beamsplitter and light source used with the detector to collect data
over a more broad spectral range. The table that follows lists the
single element detectors that are available and provides element size,
spectral range and sensitivity specifications for each.
Detector Element size Spectral range Sensitivity (D*)
MCT-A* 50 µm 11,700 - 700 cm
-1
> 60 x 10
9
W
) Hz ( cm
2 / 1
MCT-A* 250 µm 11,700 - 750 cm
-1
> 60 x 10
9
W
) Hz ( cm
2 / 1
MCT-A 250 µm 11,700 - 600 cm
-1
> 42 x 10
9
W
) Hz ( cm
2 / 1
MCT-B 250 µm 11,700 - 450 cm
-1
> 7 x 10
9
W
) Hz ( cm
2 / 1
InGaAs 250 µm 12,000 - 3800 cm
-1
> 80 x 10
9
W
) Hz ( cm
2 / 1
Once you have selected the microscope as the sample compartment,
use the Detector parameter on the Bench tab of the Experiment
Setup dialog box to select the detector you wish to use. With these
parameters set, the infrared beam is directed to the detector you
specified.
See the OMNIC Help system for more information about setting
Experiment parameters.
Note Before you can collect data using either the array or a single element
detector, you will need to cool it.

See
“Cooling the detector” in the “Preparing the Microscope”
chapter for instructions for cooling a detector.