CCD timing
The Hamamatsu C7041 documentation shows the START signal triggering an integration (exposure + readout)
ending with an END-OF-SCAN signal:
The current configuration based on a START signal triggering a readout.
I don't remember why I did it this way. Maybe because the Hamamatsu timing shown
above doesn't explain how determine when the readout should begin (exposure time
is not a setting on the head).
Probably because of this:
An older Hamamatsu manual (Image Sensors Development Kit Instruction Manual, March 2002)
shows a START signal appearing to initiate a readout after some kind of delay (vertical binning?)
during which the shutter is closed and following the readout is an exposure:
Changing the controller software to make single exposures...
Possibly useful information on operating the C7041 CCD head and S7031-1006S CCD can be found here:
Marc Baril's thesis on Luminescence in Feldspars (dead link).
Ocean Optics QE Pro Data Sheet
Hamamatsu:
Image Sensors Product Selection
S7031-906S (sans integration time):
line-binning mode:
minium binning+readout time: 1303us
area mode:
minimum frame readout: 35ms
(~28.5Hz sounds suitably fast for slit alignment)