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The JWST MIRI Double-Prism, Design and Science Drivers
Fisher, Sebastian; Rossi, Laurence; Renotte, Etienne et al.
2008In Proceedings of SPIE: The International Society for Optical Engineering, 7010
 

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Keywords :
JWST; MIRI; double-prism
Abstract :
[en] We present how it is achieved to mount a double prism in the filter wheel of MIRIM - the imager of JWST’s Mid Infrared Instrument. In order to cope with the extreme conditions of the prisms’ surroundings, the low resolution double prism assembly (LRSDPA) design makes high demands on manufacturing accuracy. The design and the manufacturing of the mechanical parts are presented here, while ’Manufacturing and verification of ZnS and Ge prisms for the JWST MIRI imager’ are described in a second paper [1]. We also give insights on the astronomical possibilities of a sensitive MIR spectrometer. Low resolution prism spectroscopy in the wavelength range from 5-10 microns will allow to spectroscopically determine redshifts of objects close to/at the re-ionization phase of the universe.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Fisher, Sebastian
Rossi, Laurence ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Renotte, Etienne ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Plesseria, Jean-Yves ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Mazy, Emmanuel ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
The JWST MIRI Double-Prism, Design and Science Drivers
Publication date :
12 July 2008
Event name :
SPIE Astronomical Telescopes + Instrumentation
Event organizer :
SPIE
Event place :
Marseille, France
Event date :
23-28 June 2008
Audience :
International
Journal title :
Proceedings of SPIE: The International Society for Optical Engineering
ISSN :
0277-786X
eISSN :
1996-756X
Publisher :
International Society for Optical Engineering
Volume :
7010
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since 28 September 2012

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