EMIR Detector
EMIR has a HAWAII-2 FPA dedector manufactured by Teledyne. The HAWAII-2 infrared detector is a HgCdTe array of 2048 by 2048 pixels (18 µm/px) sensitive to IR light. The detector operates between 1 and 5 µm and optimized in the K band (2.1 µm) at cryoginic temperatures. The detector is divided into 4 similar quadrants of size 1024x1024 and in 32 channels each quadrant in order to read faster the whole frame.
Its main characteristics can be summarized in the following table:
Detector Characteristics |
|
| Pixel format | 2048x2048 |
| Pixel size | 18 µm/pixel |
| Filling factor | 90 |
| Spectral Response | 0.9 - 2.5 microns |
| Dark Current (77 K) | < 0.1 e-/s |
| Read noise (77 K) | < 5 e- |
| Gain | |
| Well depth | |
| Quantum efficiency (77K, 2.3 µm) | 75% |