RED+ Parameters with UltraDAS + SDSU Gen.3
Device Identification
| Chip name |
Red+
|
| Year of manufacture |
2006 |
| Serial number |
05515-03-01
|
| First light on La Palma |
November 2006
|
| Description |
Deep Depletion with additional fringe suppression and
an AR coating peaking at 900nm Chip type CCD44-82-5-D23 |
Operational Characteristics
| Speed |
Slow |
Fast |
| Bias(ADU) |
1460 | 1435
|
| Gain(e/ADU) |
0.98
|
1.9 |
| Noise(e) |
3.4 to 4.4
|
5.7 to 6.7 |
| Noise (ADU) |
3.5 to 4.5 |
3.0 to 3.5 |
Linear to(ADU)
{also see graphs below} |
<1% to 60K
|
<1% to 60K
|
| Readout time(s) |
46
|
29 |
The detector noise will be somewhere in
the range of values shown above, these values were measured at the telescope.
Windowing : available with no reduction in performance
Binning : available with no reduction in performance
| Vertical CTE |
0.99999
|
| Horizontal CTE |
0.999984 (marginal)
|
Physical Characteristics
| X Pixel size |
15 microns |
| Y Pixel size |
15 microns |
| X size in pixels of digitised area |
2148
|
| Y size in pixels of digitised area |
4200
|
| X size of useful imaging area |
2048
|
| Y size of useful imaging area |
4096
|
| X start of useful imaging area |
50
|
| Ystart of useful imaging area |
1
|
| LN2 capacity of cryostat |
2.5 litres |
| Cryostat window thickness |
4 mm |
| Distance from window to CCD |
|
| Cryostat window size |
30 mm x 60 mm |
Operational Parameters
| Flooding type |
none |
| Operating temperature |
158K
|
| Cool down time |
4 hours see graph |
| Preferred amplifier |
LEFT |
Measured Characteristics
| Dark current |
<8e/hour
|
| Cosmetics |
dark column: 85,1249 bright defects: none |
| 
