Column DET

The detector type should be specified, so that programs using the data can have approximate information about the spectral response and other characteristics of the detector. The primary indicator is a character column, DET, which contains 'PMT' if the detector is a photomultiplier; 'SILICON' for Si-CCDs and Si photodiodes; or 'OTHER' for any other type. (As detector technology evolves, one would expect to extend this list.)