The MUSE project from the dream toward reality

Callier, Philippe; Accardo, M.; Adjali, L.; Anwand, H.; Bacon, Roland; Bauer, Svend M.; Biswas, I.; Boudon, Didier; Brau-Nogué, Sylvie; Brotons, Lluı́s; Capoani, L.; Contini, T.; Daguisé, Eric; Deiries, S.; Delabre, B.; Dubois, Jean‐Pierre; Dupieux, M.; Dupuis, Cedric; Fechner, Thomas; Fleischmann, Andreas; François, M.; Gallou, G.; Gharsa, T.; Glindemann, Andreas; Gojak, D.; Hansali, G.; Hahn, T.; Jarno, Aurélien; Kelz, Andreas; Koehler, C.; Kosmalski, Johan; Laurent, Florence; Floc’h, M. Le; Lizon, J. L.; Loupias, M.; Manescau, A.; Monstein, C.; Nicklas, H.; Olaya, Jean-Christophe; Parès, L.; Pasquini, L.; Pécontal-Rousset, Arlette; Petit, C.; Popow, Emil; Reiss, Roland; Remillieux, A.; Renault, Edgard; Roth, Martin; Rupprecht, G.; Serre, Denis; Streicher, O.; Stuik, Remko; Vernet, J.; Weilbacher, P.; Wisotzki, L.; Yerle, N.

doi:10.1117/12.857328

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…The design, manufacturing and assembly of 24 identical high performance integral field units, each one being an assembly of a complex opto-mechanical system with a large detector and its cryogenic system, is a rather new in the field of optical instrumentation and therefore a big challenge for us. Last but not the least, keeping cost and schedule in this context requires a proper management and quality control [3].…”

Section: Technical and Managerial Challengesmentioning

confidence: 99%

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The MUSE second-generation VLT instrument

Accardo²,

et al. 2010

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The Multi Unit Spectroscopic Explorer (MUSE) is a second-generation VLT panoramic integral-field spectrograph currently in manufacturing, assembly and integration phase. MUSE has a field of 1x1 arcmin² sampled at 0.2x0.2 arcsec² and is assisted by the VLT ground layer adaptive optics ESO facility using four laser guide stars. The instrument is a large assembly of 24 identical high performance integral field units, each one composed of an advanced image slicer, a spectrograph and a 4kx4k detector. In this paper we review the progress of the manufacturing and report the performance achieved with the first integral field unit.

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Section: Technical and Managerial Challengesmentioning

confidence: 99%

“…Preliminary releases have been distributed and tested against simulated data given by the instrument numerical model [3] and on real data obtained with the first IFU. An important feature of the data reduction software is a proper handling of noise propagation.…”

Section: Software Developmentmentioning

confidence: 99%

The MUSE second-generation VLT instrument

Accardo²,

et al. 2010

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“…MUSE PAE is currently planned for late 2011 for a first light in 2012. The MUSE project from the first ideas up now is depicted by Caillier et al during this conference [9]. To pass a successful IFU MIA, an Image Slicer Subsystem, a Spectrograph including a VPHG and a Detector Vessel should be validated independently and integrated together to check global performance.…”

Section: Introductionmentioning

confidence: 98%

MUSE integral field unit: test results on the first out of 24

et al. 2010

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MUSE (Multi Unit Spectroscopic Explorer) is a second generation VLT panoramic integral field spectrograph developed for the European Southern Observatory (ESO), operating in the visible wavelength range (0.465-0.93 μm). It is composed of 24 identical Integral Field Units (IFU); each one incorporates an advanced image slicer associated with a classical spectrograph and a detector vessel. The Image Slicer subsystem -ISS-is composed of two mirror arrays of 48 spherical elements each. It is made of Zerodur and uses an innovative polishing approach where all individual components are polished together by classical method. The MUSE Spectrograph -SPS-, with fast output focal ratio of f/1.95, implements a Volume Phase Holographic Grating -VPHG. The last subsystem, the Detector Vessel -DVincludes a chip of 4k by 4k 15µm pixels supported by a Vacuum and Cryogenic System -VCS -provided by ESO. The first out of 24 IFUs for MUSE instrument has been manufactured, aligned and tested last months. First, this paper describes the optical design, the manufacturing and test results (image quality, pupil and field of view positioning) of each subsystem independently. Second, we will focus on overall system performance (image quality and positioning) of the spectrograph associated with the detector vessel. At the end, the test results (image quality, positioning, throughput, mechanical interfaces) of the first IFU for MUSE instrument will be reported. Most of them are compliant with requirements that it demonstrates that the manufacturing, integration, alignment and tests processes are mature and gives good confidence for serial production by 24 times applied to MUSE instrument.

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“…It will present and discuss over the critical tasks and the strategy implemented to complete them successfully. It completes in more details the more general papers on the MUSE Project [1], [2] and [3].…”

Section: Introductionmentioning

confidence: 98%

MUSE from Europe to the Chilean Sky

Caillier

Accardo²,

Adjali

et al. 2014

SPIE Proceedings

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MUSE (Multi Unit Spectroscopic Explorer) is a second generation instrument, built for ESO (European SouthernObservatory) and dedicated to the VLT (Very Large Telescope). This instrument is an innovative integral field spectrograph (1x1 arcmin 2 Field of View), operating in the visible wavelength range, from 465 nm to 930 nm. The MUSE project is supported by a European consortium of 7 institutes.After the finalisation of its integration and test in Europe validated by its Preliminary Acceptance in Europe, the MUSE instrument has been partially dismounted and shipped to the VLT (Very Large Telescope) in Chile. From October 2013 till February 2014, it has then been reassembled, tested and finally installed on the telescope its final home. From there it will collect its first photons coming from the outer limit of the visible universe.To come to this achievement, many tasks had to be completed and challenges overcome. These last steps in the project life have certainly been ones of the most critical. Critical in terms of risk, of working conditions, of operational constrains, of schedule and finally critical in terms of outcome: The first light and the final performances of the instrument on the sky.

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The MUSE project from the dream toward reality

Cited by 6 publications

References 5 publications

The MUSE second-generation VLT instrument

The MUSE second-generation VLT instrument

MUSE integral field unit: test results on the first out of 24

MUSE from Europe to the Chilean Sky

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