MUSE instrument global performance analysis

Loupias, M.; Bacon, Roland; Caillier, Patrick; Fleischmann, Andreas; Jarno, Aurélien; Kelz, Andreas; Kosmalski, Johan; Laurent, Florence; Floc’h, M. Le; Lizon, Jean Louis; Manescau, A.; Nicklas, H.; Parès, L.; Pécontal, A.; Reiss, Roland; Remillieux, A.; Renault, Edgard; Roth, Martin; Rupprecht, G.; Stuik, Remko

doi:10.1117/12.857212

Cited by 6 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It will be especially optimized for the study of the progenitors of normal nearby galaxies out to high redshift. A detailed description of MUSE and its scientific applications are presented by Bacon et al and Loupias et al during this conference ( [1] and [2]). The MUSE instrument is composed of a Calibration Unit [3], a Fore-Optic which includes an optical derotator and an anamorphoser by 2, a splitting optics cutting the FoV in 24 parts and 24 relay optics [4] which feed 24 identical IFU.…”

Section: Introductionmentioning

confidence: 94%

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

et al. 2010

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 94%

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

et al. 2010

View full text Add to dashboard Cite

show abstract

“…The instrument must also be very well calibrated. A more detailed description of the requirements is given in [2]. 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.…”

Section: Technical and Managerial Challengesmentioning

confidence: 99%

The MUSE second-generation VLT instrument

Accardo²,

et al. 2010

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…This paper describes the design and development status of the calibration unit and the first performance validations of the detector subsystem. Other aspects of the instrument are described in more detail in a series of papers [4][5][6][7][8][9] in this issue, while up-to-date information can be found at the MUSE website [11]. Figure 1: CAD view of the MUSE instrument at the VLT Nasmyth platform [6].…”

Section: The Muse Instrumentmentioning

confidence: 99%

The calibration unit and detector system tests for MUSE

et al. 2010

Self Cite

View full text Add to dashboard Cite

The Multi-Unit Spectroscopic Explorer (MUSE) is an integral-field spectrograph for the ESO Very Large Telescope. After completion of the Final Design Review in 2009, MUSE is now in its manufacture and assembly phase. To achieve a relative large field-of-view with fine spatial sampling, MUSE features 24 identical spectrograph-detector units. The acceptance tests of the detector sub-systems, the design and manufacture of the calibration unit and the development of the Data Reduction Software for MUSE are under the responsibility of the AIP. The optical design of the spectrograph implies strict tolerances on the alignment of the detector systems to minimize aberrations. As part of the acceptance testing, all 24 detector systems, developed by ESO, are mounted to a MUSE reference spectrograph, which is illuminated by a set of precision pinholes. Thus the best focus is determined and the image quality of the spectrograph-detector subsystem across wavelength and field angle is measured.

show abstract

MUSE instrument global performance analysis

Cited by 6 publications

References 0 publications

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

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

The MUSE second-generation VLT instrument

The calibration unit and detector system tests for MUSE

Contact Info

Product

Resources

About