PhoSim Tutorial 9: How to Generate Calibration Data
Calibration data can be generated in a similar manner as with a real telescope. Basically, the commands have to be given to the
A bias frame can be generated with the catalog:
The catalog simply has these two commands to set the exposure time to 0 and to make the minimum number of sources to be 0. This is necessary because PhoSim will not generate chips with no sources on them by default.
The electron image will be empty, and the amplifier images will have the appropriate bias level and read noise.
Similarly, a dark can be generated by closing the dome and setting the exposure time to a reasonably long value. An example of this is the following command.
The example has the following commands that set the exposure time to 5 minutes, have the minimum source as 0, and close the dome with "telconfig 1".
The electron image will contain dark current (if significant in the device) and many cosmic rays since the exposure time is 300 seconds. The example above produces this image: