Final design and construction of the ERIS calibration unit
Date Issued
2018
Abstract
The Calibration Unit (CU) is a subsystem of the Enhanced Resolution Imager and Spectrograph (ERIS), the newgeneration instrument for the Cassegrain focus of the ESO UT4/VLT, aimed at performing AO-assisted imaging and medium resolution spectroscopy in the 1-5 micron wavelength range. The ERIS-CU is aimed to providing both focal plane artificial sources and uniform illumination over the 0.4 - 2.4 micron wavelengh range, for purposes of calibration and technical check of the SPIFFIER spectrograph, the NIX camera and the AO Module. Some challenging aspects emerged during the detailed design phase, mainly related to the need to cover such a broad wavelength range while ensuring adequate photon rates, excellent image quality and high Strehl. The technical solutions adopted to achieve the final design goals are presented and their implementation during the construction phase are shown and discussed.
Coverage
Ground-based and Airborne Instrumentation for Astronomy VII
All editors
Evans, Christopher J.; Simard, Luc; Takami, Hideki
Series
Volume
10702
Start page
107023G
Conferenece
Ground-based and Airborne Instrumentation for Astronomy VII
Conferenece place
Austin, Texas (US)
Conferenece date
10-15 June, 2018
Issn Identifier
0277-786X
Ads BibCode
2018SPIE10702E..3GD
Rights
open.access
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Final design and construction of the ERIS calibration unit(SPIE2018).pdf
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