Because the echelle spectrograph described elsewhere on this site was designed to operate at visible and near-visible wavelengths, the charhe coupled device (CCD) was chosen as the most suitable type of detector for this spectrograph. With this in mind, a moderately detailed summary of the characteristics and operation of the CCD detector is presented here.


  • CCDs in Astronomy: What are the characteristic of the CCD that make it usefull in astronomical applications? [read more]
  • CCD Operation (1): Detecting light. [read more]
  • CCD Operation (2): Getting an output. [read more]
  • CCD Performance: Performance-limiting factors. [read more]