9 August 2016 Development of cryogenic components based on COTS parts for the HARMONI instrument
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Abstract
HARMONI is an integral field spectrograph working at visible and near-infrared wavelengths. The instrument will be part of the first-light complement at the E-ELT. The IAC is in charge of several work packages and the design of two important components is ongoing: A 'Cryogenic Pupil Mask Rotator' based on a direct drive brushless motor, and a 'Cryogenic Fast Shutter' based on voice coil. One of the main goals of these developments is the use of COTS (Commercial-Off-The-Shelf) parts since their use will reduce costs and short the schedule. Nevertheless, the application of COTS parts in cryo-vacuum is often very difficult and represents a technological challenge.
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José V. Gigante, José V. Gigante, Elvio Hernández, Elvio Hernández, Luis F. Rodríguez-Ramos, Luis F. Rodríguez-Ramos, Cristian Estévez, Cristian Estévez, Antonio F. Moreno, Antonio F. Moreno, Begoña Garcia-Lorenzo, Begoña Garcia-Lorenzo, José M. Herreros, José M. Herreros, Evencio Mediavilla, Evencio Mediavilla, Ian Bryson, Ian Bryson, Fraser Clarke, Fraser Clarke, Niranjan Thatte, Niranjan Thatte, "Development of cryogenic components based on COTS parts for the HARMONI instrument", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99089U (9 August 2016); doi: 10.1117/12.2232586; https://doi.org/10.1117/12.2232586
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