Fig. 8 :   Spectral Format on the CCD   drag your browser window wide open for best view )
The upper left frame shows a single full 2K x 4K image, which is the current standard configuration. Note that the criss-cross pattern has nothing to do with the response of the system but is merely an aliasing effect of the display. The square format lower right picture is an enlarged portion of this exposure, approximately from the middle of the chip. There are two sets of 16 spectra visible, corresponding to two rows of spatial elements of the lens array, the gaps clearly marking them as distinct groups. The brighter spots which are superimposed on the continuum are indicative of emission lines which were produced by the Neon spectral line lamp, operating in this case in parallel with the continuum lamp.

Last update August 14, 2002  by  M. Roth