Quote:
Originally Posted by RickS
The read noise is about where you'd expect at 10 to 11e- (gain is probably somewhere between 0.4 and 0.45) but the noise in the new dark is much worse. If long subs consistently show that behaviour then that would certainly explain why you need more subs now.
The degradation of individual pixels over time due to cosmic rays is well known but I wasn't aware of aging affecting dark current/noise that badly. I wonder if the sensor isn't getting cooled correctly now?
Cheers,
Rick.
|
Hello
I tried different things; I tested de cam wo cooling; and the ressult was much worse.
I also suspected on the power supply (regulated 13.2V) so I went over to batteries, and result was also worse because this cam from the beginning showed more hot pixels when voltage was under 12.5V and its still the same.
I also disconnected every thing else connected to the scope and to the pc....that did not do any change...
Geert