HAWAII questions
Derek Ives
dji at roe.ac.uk
Wed Feb 17 21:08:19 CLST 1999
Posted to CCD-world:
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Dear all,
having agreed that we can use this forum for both the NIR and CCD
worlds, I would like to hear your experiences of using the Rockwell HAWAII
arrays.
We have been running our science device and are experiencing
certain characteristics of the devices. Namely:-
1. even though we use off chip JFET source followers and short the on chip
FETs, we still see glow from a corner of each quadrant.
2. if we illuminate one quandrant with the dummy star, then we see a ghost
image of this in our other quadrants.
3. we see remenance type effects which decay over a period of minutes.
I know that many of you out there are experiencing similar sorts of
effects. I was wondering if any group has discovered ways and means to
reducing the above described effects.
Regards,Derek
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