Charge Injection Devices (CIDs) have the capability to perform direct high contrast imaging with ratios approaching 1:1 billion. Individual pixel control allows regions of interest to be addressed rapidly and independently from the remainder of the array. A 32-bit register enables storage of up to log(9.6) values per pixel, and the latest generations of CID have demonstrated 5.8 electrons rms noise with 128 non-destructive reads. When combined with effective PSF suppression techniques, CIDs therefore become interesting prospects for obtaining direct images from a host of high contrast ratio scenes, including exoplanets. Results from sub-optimal ground-based astronomical observations with a CID will be presented in which direct contrast ratio imaging in excess of 1:20 million was achieved. In addition, for CIDs to be used on future space-telescopes they must be flight qualified in the space environment and shown to be at the appropriate Technology Readiness Level (TRL). We will therefore also report on an 8-month CID technology demonstration mission that achieved TRL-8 using the Nano-Racks External Platform on-board the International Space Station.
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020