Marconi2 Parameters with UltraDAS + SDSU Gen.3
Device Identification
| Chip name |
Marconi2 |
| Year of manufacture |
2002 |
| Serial number |
9434-16-4 |
| First light on La Palma |
May 2002 |
| Description |
Grade 1 Deep Depletion low fringeing CCD with 550nm AR coating,
see image. |
Operational Characteristics
| Speed |
Slow |
Fast |
| Bias(ADU) |
1460 |
700 |
| Gain(e/ADU) |
1.14 |
2.3 |
| Noise(e) |
3.5
|
4.8 |
| Noise (ADU) |
3 |
2.1 |
Linear to(ADU)
{also see graphs below} |
65K |
65K |
| Readout time(s) |
51 |
31 |
Windowing first 50 columns are noisy.
Binning there is no increase in noise up to 4x4.
| Vertical CTE |
0.999997 |
| Horizontal CTE |
0.999998 |
Physical Characteristics
| X Pixel size |
13.5 microns |
| Y Pixel size |
13.5 microns |
| X size in pixels of digitised area |
2148 |
| Y size in pixels of digitised area |
4700 |
| X size of useful imaging area |
2047 |
| Y size of useful imaging area |
4611 |
| X start of useful imaging area |
51 |
| Ystart of useful imaging area |
1 |
| LN2 capacity of cryostat |
2.5 litres |
| Cryostat window thickness |
4 mm |
| Distance from window to CCD |
11 mm measured optically |
| Cryostat window size |
30 mm x 60 mm |
Operational Parameters
| Flooding type |
none |
| Operating temperature |
168K |
| Preferred amplifier |
Left hand |
Measured Characteristics
| Dark current |
3e per hour, measured 1 hour after power-up. |
| Cosmetics |
No dark or bright columns |
| Fringing |
See graph of fringe amplitude vs wavelength |
|
