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Old 24-03-2018, 07:58 PM
JA
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JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,945
Quote:
Originally Posted by luka View Post

The graph surprised me as it is the opposite from what I expected. I thought that the dark current would be going down with the decreasing temperature. Clearly I must be doing something wrong.

Self-made CCD, similar to QHY8 Pro, details are in my signature.

Any thoughts.
Is there a better way to measure the dark current?

Thanks in advance
Yes that definitely seems odd. Can you look at the images for say -10deg C compared with the images for +5 deg C. Even post the images for comparison in this thread. On viewing - Do the -10 deg C images really suggest that they have a 10 times greater dark current (higher number and/or intensity of energised pixels)

Best
JA
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