- Conference date: 20–24 July 2009
- Location: Stanford (California)
Within the SCAM project of the European Space Agency the next step in the development of a cryogenic optical photon counting imaging spectrometer would be to increase the field of view using DROIDs (Distributed Read‐Out Imaging Detector). We present the results of the first system test using an array of 60 DROIDs in a format for optical photon detection. This is an increase in area by a factor of 5.5 compared to the successful S‐Cam 3 detector. The responsivity of the DROID array tested is too low for actual use on the telescope. However the spatial resolution of ∼35 μm is just above the size of a virtual pixel and imaging capabilities of the array can be demonstrated. With increasing responsivity this will improve, yielding a DROID array which can be used as an astronomical optical photon counting imaging spectrometer.
- Image sensors
- Optical imaging
- Photon counting
- Image detection systems
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