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23 July 2018 The infrared imaging spectrograph (IRIS) for TMT: electronics-cable architecture
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Abstract
The InfraRed Imaging Spectrograph (IRIS) is a first-light instrument for the Thirty Meter Telescope (TMT). It combines a diffraction limited imager and an integral field spectrograph. This paper focuses on the electrical system of IRIS. With an instrument of the size and complexity of IRIS we face several electrical challenges. Many of the major controllers must be located directly on the cryostat to reduce cable lengths, and others require multiple bulkheads and must pass through a large cable wrap. Cooling and vibration due to the rotation of the instrument are also major challenges. We will present our selection of cables and connectors for both room temperature and cryogenic environments, packaging in the various cabinets and enclosures, and techniques for complex bulkheads including for large detectors at the cryostat wall.
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A. C. Trapp, James Larkin, Ken Magnone, Timothee Greffe, Tim Hardy, Jennifer Dunn, Eric Chisholm, Chris Johnson, and Ryuji Suzuki "The infrared imaging spectrograph (IRIS) for TMT: electronics-cable architecture", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 10702A1 (23 July 2018); doi: 10.1117/12.2313978; https://doi.org/10.1117/12.2313978
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