[luka]

I have been trying to measure the dark current dependance on the temperature.

I used the PI script BasicCCDParameters, loaded it with two flats and two biases and then with two darks taken at the same CCD temperature with 30s and 300s exposures. Amongst the other things the script calculated the dark current for that particular CCD temperature.

Then I took two sets of darks (30s & 300s) at several different temperatures and tried to plot the dependence of the dark current vs temperature. The outcome is attached.

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