QUCAM2 Parameters with UltraDAS + SDSU Gen.2
NB these figures refer
to QUCAM2 when it was used with a Gen. 2 controller. Converted to Gen. 3 on
the 8th March 2007
Device Identification
| Chip name |
QUCAM2
|
| Year of manufacture |
2005 |
| Serial number |
04122-17-01
|
| First light on La Palma |
May 2005
|
| Description |
E2V CCD201-20-4-122 Thinned midband AR coated. L3 electron multiplying
CCD. Camera Picture
|
Operational Characteristics
| Speed |
Fast
|
Slow
|
| Bias(ADU) |
2030
|
2100
|
| Gain(ADU/e) |
74
|
10
|
| Read Noise(e) |
0.08
|
1
|
Linear to(ADU)
|
40K (see graph )
|
40K (see graph )
|
L3 Gain
|
340
|
45
|
Windowed readout times as follows:
[timings made using the 'rsrun' command]
Window size
|
Fast
|
Slow
|
Full frame
|
2.4
|
2.4
|
150 x150 window
|
150 ms
|
150 ms
|
250 x 250 window
|
320 ms
|
320 ms
|
500 x 500 window
|
1 s
|
1 s
|
Windows smaller than 150 x 150 pixels are not recommended because
of bias gradients in the first 30 rows and columns of the window
Windowing : one window only
Binning : No
Physical Characteristics
| X Pixel size |
13 microns
|
| Y Pixel size |
13 microns
|
| X size in pixels of digitised area |
1072
|
| Y size in pixels of digitised area |
1050
|
| X size of useful imaging area |
1024
|
| Y size of useful imaging area |
1024
|
| X start of useful imaging area |
33
|
| Ystart of useful imaging area |
8
|
Operational Parameters
Operating temperature
|
173K (requires 3 hour cool down to stabilise
at operational temp, important for gain stability)
|
Preferred Amplifier
|
Right
|
Measured Characteristics
Predicted QE
Cosmetics : low level defects in columns 190 and 742 (see image of 5 added 30 second dark frames)
Some papers describing the use of L3 CCDs see this link
Sample Images and Observing tips for L3 Cameras see this link
|
