Preliminary CCD tests
CCD Test report
EEV 44-82
CCD name : Bruce
Serial number : 7173-3-1
Type : Backside, Single layer AR Pixel size 15x15 µm
Number of photosensitive pixels 2048 x 4102 [HxV]
Number of outputs : 2
Overall rating : Science
Tested on March 2000
Quantum Efficiency, PRNU
Clock mode: read 350kps LR stripe512
Conversion Factor= 1.8586e-/ADU ±0.006116 for 23011.2ADU
RMS noise = 4.0441e- ±0.3508
CCD temperature : -140Cº
Window area is : X1= 59 X2= 1066 Y1= 9 Y2= 510
Bandwidth 5nm
Wav. PRNU rms% QE%
320 1.7 60.8 ±1.7
330 1.5 67.5 ±1.9
340 1.4 71.9 ±1.4
350 1.4 74.0 ±0.7
360 1.4 77.6 ±0.7
370 1.3 82.0 ±0.8
380 1.1 86.3 ±0.8
390 1.0 90.3 ±0.9
400 0.9 91.5 ±0.9
420 0.8 92.2 ±0.9
440 0.8 92.1 ±0.9
460 0.7 90.4 ±0.9
500 0.7 88.2 ±0.8
540 0.7 85.7 ±0.8
560 0.7 84.1 ±0.8
600 0.7 81.9 ±0.8
640 0.7 79.6 ±0.7
660 0.7 77.5 ±0.7
700 0.9 71.5 ±0.6
740 1.0 65.2 ±0.5
760 1.2 61.7 ±0.5
800 1.6 54.3 ±0.4
840 2.1 43.9 ±0.3
900 2.5 26.6 ±0.2
940 3.9 16.1 ±0.12
1000 7.5 4.65 ±0.03
1040 8.1 0.8 ±0.005
1100 11.7 0.09 ±0.0006
Cosmetic defects
flat field
350nm (UV), bandwidth 5nm
High level
Low level
600 nm, bandwidth 5nm
High level
Low level
900 nm, bandwidth 5nm
High level
Low level
Type of defect Location (x,y) Number of pixels affected Hot pixel x=1680, y=1466 2500*3 Bias
Type of defect Location Number of pixels affected Hot pixel x=1680, y=1466 2500*3
Long exposure dark image
A glowing in the top is visible, nothing related with amplifier glowing. It looks like charge injection on the top of the device
Cross section of this effect (ADUs):
Type of defect Location Number of pixels affected Hot pixel x=1680, y=1466 2500*3 Glowing Upper left ---- Readout noise/Conversion factor
Read out speed: 166kps
Left readout port
Conversion Factor= 1.722e-/ADU ±0.006 for 27149.6ADU
RMS noise = 3.84e- ±0.28
Readout speed: 166kps
Right readout port
Conversion Factor= 1.721e-/ADU ±0.006 for 27065.1ADU
RMS noise = 4.19e- ±0.30
Read out speed: 350kps
Left readout port
Conversion Factor= 1.867e-/ADU ±0.006 for 26889.9ADU
RMS noise = 4.08e- ±0.35
Read out speed: 350kps
Right readout port
Conversion Factor= 1.864e-/ADU ±0.006 for 26832.2ADU
RMS noise = 4.58e- ±0.39
Linearity (TDI method)
not done
Dark current
not done
Charge Transfer Efficiency (CTE)
Horizontal CTE = 0.9999988
Vertical CTE = 0.9999997
