Preliminary CCD tests
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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

 

©   C. Cavadore Send comments to   <odt@eso.org> Last update: Mar 16, 2004