Log Book Entry No.27

Created: 01 Nov 2013 12:23:14

Last Revised: 01 Nov 2013 15:30:36

PaulHallam

Cooler Study

Please edit and put your text etc. here

A study into the variation of background pixel count with temperature.

Initial CCD temperature was recorded to be 18 degrees. Coolers were turned on and CCD cooled to 0 degrees over the course of an hour, to ensure the entirety of the CCD began at zero degrees for the following study.

Coolers were then set to cool the CCD to -10 degrees, and one second exposures were to be taken every 30 seconds for one hour over this cool down period.

The data shall be saved in the following format: Cooler_Study-001E001

Also this shall also provide 29s exposures between the 1s exposures, which shall appear like this: Cooler_Study-001E029. This data will not be analysed.

When this collection of data has been finished, CCD was at a constant -10 degrees. The CCD coolers were switched off, and the CCD warmed back up to room temperature. Using the same method, one second exposures was taken every 30 seconds for one hour over this period.

The data shall be saved in the following format: Cooler_Study_2-001E001

Again this will also produce data that will not be analysed, in the form of: Cooler_Study_2-001E029

Room temperature in this case is 25.6 degrees.

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