1NOTE: The full well of device W20-(0,0) has a strong
position dependence with a limiting level of only  40KADU/52Ke- in the
bottom right corner, nearest the centre of the mosaic array.
2 CCD7 is the old ALFOSC detector. Further detail of this device
can be found at 
 CCD7.
3 QE measurements by  Anton Norup Sørensen 
see  quality monitoring for latest measurements.
of readout noises and gains 
 
Layout on image display
           
       
       
         
           | CCD12 / W20-(0,0) / Amp#2 / MEF Ext 3 | CCD11 / W19-(1,0) / Amp#1 / MEF Ext 4 | 
         
           | CCD7 / W19-(0,0) / Amp#3 / MEF Ext 1 | CCD10 / W17-(1,1) / Amp#0 / MEF Ext 2 | 
       
     
Staff only; To set bias levels, for default high gain : 
mosca.sendcamcmd @BLHI00+nnnnn  Bottom right
mosca.sendcamcmd @BLHI03+nnnnn  Top Right
mosca.sendcamcmd @BLHI04+nnnnn  Bottom left
mosca.sendcamcmd @BLHI07+nnnnn  Top left