Short test of ALFOSC CCD from 6 March 2001, data collected by G. Cox:


Default setup:

Amp B high gain : Gain       = 1.039  electrons per ADU
                  Read noise = 5.533  electrons
                  Bias       = 368    ADU


Others:

Amp B low gain  : Gain       = 1.785  electrons per ADU
                  Read noise = 8.237  electrons
                  Bias       = 258    ADU

Amp A high gain : Gain       = 1.067  electrons per ADU
                  Read noise = 6.603  electrons
                  Bias       = 341    ADU 

Amp A low gain  : Gain       = 1.835  electrons per ADU
                  Read noise = 7.744  electrons
                  Bias       = 713    ADU