Ambient alignment verification of JWST-MIRI

Marc Ferlet; Martyn Wells

doi:10.1117/12.925963

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21 September 2012 Ambient alignment verification of JWST-MIRI

Marc Ferlet, Martyn Wells

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Proceedings Volume 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave; 84422Q (2012) https://doi.org/10.1117/12.925963
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

We report on the alignment verification activities using optical visible techniques, and performed at ambient temperature before and after environmental and qualification tests, on the Mid InfraRed Instrument (MIRI), one of the scientific instruments on-board the James Webb Space Telescope (JWST). More specifically, the method developed to measure some of the instrument key parameters, such as pupil shear and focus offset, is explained in details. We describe the chosen approach, the associated common hardware, the initial set-up and alignment, then discuss the measurements themselves and finally the data analysis, before concluding on the successful application of such approach to the optical characterization of the MIRI flight model.

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Marc Ferlet and Martyn Wells "Ambient alignment verification of JWST-MIRI", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84422Q (21 September 2012); https://doi.org/10.1117/12.925963

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