Cryogenic wheel mechanisms for the Mid-Infrared Instrument (MIRI) of the James Webb Space Telescope (JWST): detailed design and test results from the qualification program

Krause, O.; Birkmann, Stephan M.; Blümchen, T.; Böhm, A.; Ebert, M.; Grözinger, U.; Henning, Th.; Hofferbert, R.; Huber, Armin; Lemke, D.; Rohloff, Ralf-Rainer; Scheithauer, S.; Gross, T.; Luichtel, Georg; Stein, C.; Stott, R.; Übele, M.; Amiaux, J.; Auguères, J.-L.; Glauser, Adrian M.; Zehnder, A.; Meijers, Michael; Jäger, R.; Parr-Burrman, P.; Wright, Gillian

doi:10.1117/12.789319

Cited by 5 publications

(6 citation statements)

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“…The design and testing of the MIRI mechanisms is presented in [4] and [5], the prism for low resolution spectroscopy in [10] and [11], optical blacks in [12] and the detector performances and focal plane system in [6], [7] and [9].…”

Section: Performance Test Resultsmentioning

confidence: 99%

“…There are three wheel mechanism assemblies (Krause et al 4 ) based on ISO designs and heritage: one in the imager and one in each channel of the spectrometer. The imager wheel carries both the filters for imaging and the coronagraph masks/filters.…”

Section: Key Features Of the Miri Optical Systemmentioning

confidence: 99%

“…Birth of Stars and Planetary Systems: JWST will study how stars form in dust clouds, and how chemical elements are produced and re-circulated. 4. Planetary Systems and the Origins of Life: To study the formation of planets and obtain direct observations of other planetary systems, as well as study of the outer solar system.…”

Section: Introductionmentioning

confidence: 99%

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Design and development of MIRI, the mid-IR instrument for JWST

Wright

Reike

Barella

et al. 2008

Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter

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MIRI is the mid-IR instrument for the James Webb Space Telescope and provides imaging, coronography and integral field spectroscopy over the 5-28µm wavelength range. MIRI is the only instrument which is cooled to 7K by a dedicated cooler, much lower than the passively cooled 40K of the rest of JWST, which introduces unique challenges. The paper will describe the key features of the overall instrument design. The flight model design of the MIRI Optical System is completed, with hardware now in manufacture across Europe and the USA, while the MIRI Cooler System is at PDR level development. A brief description of how the different development stages of the optical and cooling systems are accommodated is provided, but the paper largely describes progress with the MIRI Optical System. We report the current status of the development and provide an overview of the results from the qualification and test programme.

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Section: Performance Test Resultsmentioning

confidence: 99%

Section: Key Features Of the Miri Optical Systemmentioning

confidence: 99%

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Design and development of MIRI, the mid-IR instrument for JWST

Wright

Reike

Barella

et al. 2008

Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter

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“…Algunos ejemplos de dichas aplicaciones son los sistemas de alimentación de procesos y fabricación en serie [2], sistemas de cambio de herramienta en centros de mecanizado y manipuladores robóticos [3] o sistemas ópticos avanzados [4]. Otro número importante de aplicaciones requieren de actuadores de altas prestaciones dinámicas, capaces de proporcionar grandes aceleraciones y potentes sistemas de frenado [5] que, de igual manera, presentan elevados costes energéticos asociados.…”

Section: Introductionunclassified

“…Por otro lado, el instrumento MIRI contiene una rueda de filtros que porta 18 elementos ópticos seleccionables: filtros de banda estrecha y banda ancha, un prisma y cuatro máscaras coronográficas. Las dos ruedas de rejillas/dicroicas casi idénticas llevan combinaciones de rejillas y dicroicas con sólo tres posiciones para cada rueda [5].…”

Section: Introductionunclassified

Actuador rotativo de ultra bajo consumo basado en energía magnética potencial

2022

Congreso Iberoamericano De Ingeniería Mecánica-Cibim 2022

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En esta investigación se presenta un novedoso concepto de actuador rotativo que minimiza el consumo de potencia y energía para aplicaciones de posicionamiento de precisión. Dicho dispositivo se basa en el aprovechamiento de la energía magnética potencial almacenada entre imanes permanentes con polaridades enfrentadas que se repelen entre sí. Al combinar esta energía almacenada con un sistema de estabilización y control activo de la posición se consigue un dispositivo capaz de realizar cambios ultrarrápidos entre múltiples posiciones estables. Todo ello con un consumo energético minimizado en comparación con un dispositivo tradicional equivalente como un motor eléctrico.Se presenta el marco teórico para la operación de dicho dispositivo y su diseño detallado como actuador para una aplicación de rueda de filtros de un satélite espacial de observación. Se han calculado las prestaciones estimadas del dispositivo mediante modelos electromagnéticos de elementos finitos. Como se demuestra, el dispositivo podría permitir una reducción de la potencia nominal del dispositivo superior al 90% y del consumo energético superior al 78%, asegurando al mismo tiempo, un cambio ultrarrápido y preciso entre ocho posiciones angulares diferentes.

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The Mid-infrared Instrument for JWST and Its In-flight Performance

Wright

Rieke

Glasse

et al. 2023

PASP

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The Mid-Infrared Instrument (MIRI) extends the reach of the James Webb Space Telescope (JWST) to 28.5 μm. It provides subarcsecond-resolution imaging, high sensitivity coronagraphy, and spectroscopy at resolutions of λ/Δλ ∼ 100–3500, with the high-resolution mode employing an integral field unit to provide spatial data cubes. The resulting broad suite of capabilities will enable huge advances in studies over this wavelength range. This overview describes the history of acquiring this capability for JWST. It discusses the basic attributes of the instrument optics, the detector arrays, and the cryocooler that keeps everything at approximately 7 K. It gives a short description of the data pipeline and of the instrument performance demonstrated during JWST commissioning. The bottom line is that the telescope and MIRI are both operating to the standards set by pre-launch predictions, and all of the MIRI capabilities are operating at, or even a bit better than, the level that had been expected. The paper is also designed to act as a roadmap to more detailed papers on different aspects of MIRI.

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Cryogenic wheel mechanisms for the Mid-Infrared Instrument (MIRI) of the James Webb Space Telescope (JWST): detailed design and test results from the qualification program

Cited by 5 publications

References 0 publications

Design and development of MIRI, the mid-IR instrument for JWST

Design and development of MIRI, the mid-IR instrument for JWST

Actuador rotativo de ultra bajo consumo basado en energía magnética potencial

The Mid-infrared Instrument for JWST and Its In-flight Performance

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