A new infrared camera for COAST

Richard J Neill; John S. Young

doi:10.1117/12.550942

29 September 2004 A new infrared camera for COAST

Richard J Neill, John S. Young

Proceedings Volume 5499, Optical and Infrared Detectors for Astronomy; (2004) https://doi.org/10.1117/12.550942
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

We describe the design of a new IR camera for the Cambridge Optical Aperture Synthesis Telescope that has been designed both to increase our science productivity at COAST and to prototype novel hardware architectures for the Magdalena Ridge Observatory Interferometer IR detector systems. The new camera uses a Rockwell HAWAII sensor in place of the NICMOS device from our previous camera and will be able to sample the temporal fringe patterns from the four outputs of the COAST infrared beam-combiner at frame rates up to 10 kHz. The use of non-destructive multiple reads should allow an effective read noise of 3 electrons to be attained with this chip. The camera controller uses a PulseBlaster FPGA card to generate the timing signals: the advantages of this are flexibility, ease of use, and rapid reconfiguration of the clocking scheme. The new system should improve the IR sensitivity of COAST by around 2 magnitudes. We detail the design of the hardware and the associated software.

Citation Download Citation

Richard J Neill and John S. Young "A new infrared camera for COAST", Proc. SPIE 5499, Optical and Infrared Detectors for Astronomy, (29 September 2004); https://doi.org/10.1117/12.550942

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