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Setting up the CCD Detectors

The CCD setup is carried out with the comparison lamps, and these give a reasonably high signal. A large number of exposures may be necessary, and it is possible to save time by running the CCD in quick mode, in which the readout is speeded up.

At the ICL interface type:--

SPEEDY <channelname>

This will put the appropriate CCD into quick mode. At the end of the setup procedures the CCD should be returned to the standard readout speed. At the ICL interface type:--

SLOUCH <channelname>

• Rotation
• Tilt and coarse Focus
• Collimator Focus
• Hartmann test using the DMS
• Hartmann test using the Vax
• Minimum-FWHM using the VAX