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  Testing the near-infrared optical assembly of the space telescope Euclid

Bodendorf, C., Geis, N., Grupp, F., Kaminski, J., Katterloher, R., & Bender, R. (2019). Testing the near-infrared optical assembly of the space telescope Euclid. In T. B. Hull, K. Dae Wook, & P. Hallibert (Eds.), Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems II. doi:10.1117/12.2529114.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-619B-E Version Permalink: http://hdl.handle.net/21.11116/0000-0006-6620-3
Genre: Conference Paper

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Testing the near-infrared optical assembly of the space telescope Euclid.pdf (Any fulltext), 4MB
 
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 Creators:
Bodendorf, Christof1, Author              
Geis, Norbert2, Author              
Grupp, Frank1, Author              
Kaminski, Jennifer1, Author              
Katterloher, Reinhard2, Author              
Bender, Ralf1, Author              
Affiliations:
1Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              
2Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159889              

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 Abstract: Euclid is a space telescope currently developed in the framework of the ESA Cosmic Vision 2015-2025 Program. It addresses fundamental cosmological questions related to dark matter and dark energy. The lens system of one of the two scientific key instruments [a combined near-infrared spectrometer and photometer (NISP)] was designed, built-up and tested at the Max Planck Institute for Extraterrestrial Physics (MPE). We present the final imaging quality of this diffraction-limited optical assembly with two complementary approaches, namely a point-spread function- and a Shack- Hartmann sensor-based wavefront measurement. The tests are performed under space operating conditions within a cryostat. The large field of view of Euclid’s wide-angle objective is sampled with a pivot arm, carrying a measurement telescope and the sensors. A sequence of highly accurate movements to several field positions is carried out by a large computer controlled hexapod. Both measurement approaches are compared among one another and with the corresponding simulations. They demonstrate in good agreement a solely diffraction limited optical performance over the entire field of view.

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 Dates: 2019-09-09
 Publication Status: Published online
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1117/12.2529114
Other: LOCALID: 3230374
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Title: SPIE OPTICAL ENGINEERING + APPLICATIONS
Place of Event: San Diego, CA
Start-/End Date: 2019-08-11 - 2019-08-15

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Title: Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems II
Source Genre: Proceedings
 Creator(s):
Hull, Tony B., Editor
Dae Wook, Kim, Editor
Hallibert, Pascal , Editor
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Pages: - Volume / Issue: 11116 Sequence Number: 111160Y Start / End Page: - Identifier: -

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Title: Proceedings of SPIE
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Publ. Info: SPIE-INT SOC OPTICAL ENGINEERING
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0277-786X