Chapter 4. Performing Measurements
Arranging the optical scheme of the Transmission Collection Mode
1. Remove the Output socket from the radiation feedthrough. To this purpose, press and
hold the backing-up screw of the feedthrough with your left had (
Fig. 4-3) and pull
the
Output socket with your right hand.
Fig. 4-3. Radiation feedthrough
2. Insert the Output socket in the bushing of the PMT module against the stop (Fig. 4-4).
Secure the
Output socket be screwing the fixing screws of the bushing of the PMT
module.
Fig. 4-4. PMT module
3. Direct the beam from the laser source to the spectral unit within the Control program
of the spectral unit (see manual on the Control program).
4. Open the exit laser shutter. The laser beam will go through the spectral unit and come
to the radiation feedthrough.
5. Turn the turret of exchangeable mirrors to position M0 (totally reflecting mirror). The
laser beam will come to the sample and the monitor of the optical viewing system will
display the laser spot focused on the sample surface.
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