LIRIC
LIRIC under development in lab (covers removed). ©2023 A.Piascik
Introduction
The Liverpool Infra-Red Imaging Camera is an instrument development project co-funded by STFC and LJMU. It was designed and built by the ARI and will be available from 2024 Q1, replacing the now-decommissioned IO:I camera. It offers rapid X and Y axis fixed-distance offsetting (nodding) for sky background subtraction.
Status
2023 Q3:
Under development at ARI; scheduled for deployment 2024 Q1.
Specifications & Performance
Data is for detector temperature = -20°C
| Detector | 640 x 512 pixel InGaAs sCMOS by SCD.USA |
| Pixel scale | 0.3 arcsec/pixel (no binning available) |
| Field of view | 3.3 x 2.7 arcmin (no windowing available) |
| Gain | 0.52 electrons/ADU |
| Dark current | 821 electrons/second |
| Read Noise | 32 electrons |
| Linearity | < 1 % |
| Bit depth | 8520 electrons |
| Exposure | 0.1 or 1.0 seconds co-added for longer exposure time |
| Approximate Zeropoint | 22.8 (H-band) |
Filter Set
LIRIC has an uncooled 5-position filter wheel. At the moment only J and H band filters are installed:
Filter Name |
Wavelength Range |
Barr J |
11200-13800 |
Barr H |
15200-18200 |
