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Proceedings Paper

Optical detector systems of UVES: the echelle spectrograph for the UT2 Kueyen Telescope at the ESO Paranal Observatory
Author(s): Reinhold J. Dorn; James W. Beletic; Cyril Cavadore; Jean-Luis Lizon
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Paper Abstract

This paper presents the design, construction and performance parameters for the optical detector systems for UVES, the echelle spectrograph for the UT2 Kueyen Telescope at the ESO Paranal. A general overview at system level with a description of the individual components is also given. Emphasis is given on the CCD detectors and their performance. The two rams are equipped with large science CCD detectors, one single chip in the blue arm and a mosaic of two in the red. The blue CCD is a 2K by 4K, 15 micrometers pixel size thinned EEV CCD-44. The mosaic in the red arm is made of an EEV chip of the same type and an MIT/LL CCID-20 chip, which features a higher NIR QE and reduce fringing for the redder part of the spectral range. The read noise archived with the CCDs at the telescope is less than 2 electrons for the EEV CCDs and less than 3 electrons for the MIT/LL CCD at a readout speed of 50 kpixel/sec/port. The system s offer a variety of readout modes, binning options and readout speeds up to 625 kilopixel per second per port with linearity variations better than 1 percent peak to peak at a dark current level of around 0.5 electrons/pixel/hour.

Paper Details

Date Published: 16 August 2000
PDF: 12 pages
Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395492
Show Author Affiliations
Reinhold J. Dorn, European Southern Observatory (Germany)
James W. Beletic, European Southern Observatory (United States)
Cyril Cavadore, European Southern Observatory (Germany)
Jean-Luis Lizon, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 4008:
Optical and IR Telescope Instrumentation and Detectors
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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