Slicing the Universe CCDs for MUSE

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Slicing the UniverseCCDs for MUSE

• Roland Reissa, Sebastian Deiriesa, Jean Louis
  Lizona, Manfred Meyera, Javier Reyesa, Roland
  Baconb, François Hénaultb, Magali Loupiasb(a)
  European Southern Observatory (http//www.eso.org)
  Karl-Schwarzschild-Str. 2 D-85748 Garching by
  Munich, Germany(b) CRAL - Observatoire de Lyon,
  9 avenue Charles André, 69230 Saint-Genis-Laval,
  France

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Slicing the UniverseCCDs for MUSE

• MUSE (Multi Unit Spectral Explorer) is built by a
  consortium of European institutes(ESO,
  Göttingen, Leiden, Lyon, Toulouse, Zürich).
• 2nd generation instrument for the VLT.
• Integral field spectrometer for the Nasmyth
  focus.
• 24 Integral Field Units (IFU).
• 24 cryostats with one 4k x 4k CCD attached to
  IFUs.

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Compact CCD Head

• Low Frequency Pulse Tube Cooler.
• Standard head for future ESO instruments.

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New General detector Controler (NGC)
Cascode CCD Buffer Stage 2x gain of single buffer Differential output NGC configuration One board per detector
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Detector Requirements
Item Value Remarks
Detector format 4096 x 4096or 2x 2048 x 4096
Pixel size 15 x 15 µm2
QE 465 570 nm 85 min 90 goal
QE 610 800 nm 85 min 90 goal
QE 800 930 nm 60 min 70 goal
Fringing lt 10 Peak-to-peak of avg. sensitivity
Fringe stability lt 1 Within 24 hours
Flat field stability lt 1 Per night
Charge diffusion lt 0.1 pixel FWHM equivalent gaussion convolution
Surface flatness lt 20 µm pp