CCD Test report

CCD name : Barbarella

Tested on Dec1999

Quantum Efficiency, PRNU

     Conversion Factor= 1.7792e-/ADU ±0.005848 for 24514.6ADU 

     CCD temperature : -138.89999Cº

     

     Window area is : X1= 57 X2= 1062 Y1= 23 Y2= 509

     Bandwidth 5nm

     

Wav. PRNU rms% QE% 

320   3.9321   41.282 ±1.16290 

330   3.747    46.614 ±1.34660 

340   3.6803   49.710 ±0.96985 

350   3.689    50.978 ±0.49940 

360   3.6235   53.160 ±0.52594 

370   3.1693   57.825 ±0.57040 

380   2.2377   66.684 ±0.65891 

390   1.6685   74.624 ±0.76641 

400   1.38     78.792 ±0.79789 

420   1.1231   82.957 ±0.83631 

440   1.0155   85.123 ±0.85275 

460   0.96029  85.040 ±0.85450 

480   0.92865  84.130 ±0.84603 

500   0.91407  84.293 ±0.84533 

520   0.89207  83.940 ±0.84272 

540   0.87965  82.915 ±0.83450 

560   0.8671   81.618 ±0.81536 

580   0.85891  81.305 ±0.81241 

600   0.84962  80.208 ±0.79484 

620   0.84748  79.512 ±0.78205 

640   0.85706  78.595 ±0.76578 

660   0.84911  77.109 ±0.74692 

680   0.87477  75.434 ±0.71875 

700   0.89678  72.434 ±0.67685 

720   0.9766   69.384 ±0.63780 

740   1.0181   65.981 ±0.59957 

760   1.0718   62.310 ±0.55732 

780   1.1143   58.982 ±0.51698 

800   1.1615   51.577 ±0.44587 

820   1.2358   48.384 ±0.41160 

840   1.4089   44.130 ±0.37032 

860   1.4548   41.543 ±0.34719 

880   1.3982   35.845 ±0.29039 

900   1.665    29.994 ±0.24119 

920   1.9298   23.782 ±0.18597 

940   2.4586   17.883 ±0.13774 

960   3.291    12.806 ±0.09801 

980   4.1656   8.4308 ±0.06387 

1000  4.8931   4.9227 ±0.03696 

1040  5.4414   0.8992 ±0.00669 

1100  7.4592   0.1112 ±0.00082                                                                                                            



  

 

 

Cosmetic defects

 

flat field

350nm (UV)

 

600 nm

900 nm

Type of defect	Location	Number of pixels affected
	x1190 y2100	~4000 pixels
	x2015 y0035	~300 pixels
	x0994 y1462	~640 pixels

This CCD has a defect in the middle of the frame which absorb light and release it during a long dark exposure, it takes 3 hours to get rid of this effect : it concerns 3329 pixels. Also there's another same kind of defect at : X=1 Y=2015 , 960 affected pixels.

10 sec exposure at 650 nm

third half of an hour dark, the feature has weaken.

 

 

 

Bias frame : NA

Type of defect	Location	Number of pixels affected
	x1190 y2100	~4000 pixels
	x2015 y0035	~300 pixels
	x0994 y1462	~640 pixels

Long exposure dark image : not available

Type of defect	Location	Number of pixels affected
	x1190 y2100	~4000 pixels
	x2015 y0035	~300 pixels
	x0994 y1462	~640 pixels

 

 

Readout noise/Conversion factor

 









readout speed : 350kps

RMS noise        =   2.9242e-      ±0.2302  

Linearity (TDI method)

RMS non linearity (%)         =    0.100172                                                                                      

Peak to peak non linearity (%)=    0.385505     







  

 

 

Dark current

 

Charge Transfer Efficiency

 



readout speed : 166kps



Horizontal CTE = 0.999999400537898

Vertical CTE   = 0.999999666928224