TEK4 Parameters with UltraDAS
STOP PRESS : TEK4 has blobs that reduces it's sensitivity in the U band. 16/2/2000
Device Identification
| Chip name | TEK4 |
| Year of manufacture | 1993 |
| Serial number | 1675BR10-04 |
| First light on La Palma | July 1994 |
| Description | Thinned AR coated, converted to run with UltraDAS January 2001. |
Operational Characteristics
| Speed | Slow | Fast |
| Bias(ADU) | 1234 | 1547 |
| Gain(e/ADU) | 1.43 | 3.48 |
| Noise(e) | 4.6 | 7.0 |
| Linear to(ADU)
{also see graphs below} |
63K | 63K |
| Readout time(s) | 39 | 24 |
Binning
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| Vertical CTE | 0.999997 |
| Horizontal CTE | 0.999994 |
Physical Characteristics
| X Pixel size | 24 microns |
| Y Pixel size | 24 microns |
| X size in pixels of digitised area | 1100 |
| Y size in pixels of digitised area | 1040 |
| X size of useful imaging area | 1024 |
| Y size of useful imaging area | 1024 |
| X start of useful imaging area | 53 |
| Ystart of useful imaging area | 0 |
| LN2 capacity of cryostat | 2.5 litres |
| Cryostat window thickness | 4 mm |
| Distance from window to CCD | 11.4 mm |
| Cryostat window size | 40mm x 40mm |
Operational Parameters
| Flooding type | none |
| Operating temperature | 158K |
| Preferred amplifier | A,D failed 3/95 |
| Anti-blooming available | no |
Measured characteristics
| Dark current | <6 e/hour |
| Chip flatness | 57 micron convex bow |
This page last updated : 30th January 2001
awr@ing.iac.es