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9 July 2008 Detector upgrade for FLAMES: GIRAFFE gets red eyes
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GIRAFFE is an intermediate resolution spectrograph covering a wavelength range from 360-930nm and fed by optical fibers as a part of FLAMES, the multi-object fiber facility mounted at the ESO VLT Kueyen. For some time we sought a new detector for GIRAFFE spectrograph to boost the instrument's red QE (Quantum Efficiency) capabilities, while still retaining very good blue response. We aimed also at reducing the strong fringing present in the red spectra. The adopted solution was an e2v custom 2-layer AR (Anti-Reflection) coated Deep Depletion CCD44-82 CCD. This device was made in a new e2v Technologies AR coating plant and delivered to ESO in mid 2007 with performance that matches predictions. The new CCD was commissioned in May 2008. Here we report on the results.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Claudio Melo, Mark Downing, Paul Jorden, Luca Pasquini, Sebastian Deiries, Andrew Kelt, Dominique Naef, Reinhard Hanuschik, Ralf Palsa, Roberto Castillo, Eduardo Peña, Eduardo Bendek, and Mark Gieles "Detector upgrade for FLAMES: GIRAFFE gets red eyes", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70143B (9 July 2008); doi: 10.1117/12.789092;


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