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GMOS-S Gain and Read Noise Values

The table below gives gain/read-noise values for the current GMOS Hamamatsu CCDs measured in September 2015, after the commissionig and characterization of the new video boards (see status and availability page for more details) 

Note: GMOS South data obtained before Aug 31, 2015 should use the previous gain/read-noise values.

SDSU Gain number

Normal Science

mode (2)

Acquisition

mode (6)

Bright target 

mode (5)

CCD

Sci

Ext 

Amp. name Gain Noise Gain Noise Gain Noise
1 1 BI5-36-4k-2,4 1.834 4.04  1.556  5.49  5.183 8.07
1 2 BI5-36-4k-2,3 1.874 4.28  1.593 6.35 5.300 8.85
1 3 BI5-36-4k-2,2 1.878 4.24 1.592 7.10 5.330 9.13
1 4 BI5-36-4k-2,1 1.852 4.21 1.566 6.68 5.240 8.93
2 5 BI11-33-4k-1,4 1.908 3.90 1.634 5.77  5.407 8.02
2 6 BI11-33-4k-1,3 1.933 4.24  1.648 7.38  5.459 8.62
2 7 BI11-33-4k-1,2 1.840 4.07 1.582 6.14  5.225 8.59
2 8 BI11-33-4k-1,1 1.878 4.29 1.613 5.19  5.334 8.35
3 9 BI12-34-4k-1,4  1.813 4.15 1.549 7.72 5.120 9.34
3 10 BI12-34-4k-1,3  1.724 3.61 1.478 7.88 4.894 7.99
3 11 BI12-34-4k-1,2 1.761 3.72 1.545 6.80 5.129 8.30
3 12 BI12-34-4k-1,1 1.652 3.53 1.445 6.36  4.828 7.94
Ave      1.829 3.96  1.567 6.57  5.204  5.86 

 


Last update October 02 2015: German Gimeno