ANDES, the high-resolution spectrograph for the ELT: RIZ and UBV spectrographs’ preliminary design of the detector unit

L. Genolet; M. Aliverti; A. Balestra; O. Bellido; J. Brynnel; L. Cabona; B. Chazelas; I. Coretti; P. Di Marcantonio; C. Fuesslein; Y. Ivanisenko; A. Järvinen; A. Kaminski; J. Kern; A. Lanotte; C. Lovis; A. Marconi; E. Oliva; G. Pariani; K. Poppenhäger; E. Redaelli; M. Riva; P. Santos Diaz; M. Scalera; M. Sordet; K. Strassmeier; M. Weber; J. Weingrill; A. Zanutta

doi:10.1117/12.3019925

27 August 2024 ANDES, the high-resolution spectrograph for the ELT: RIZ and UBV spectrographs’ preliminary design of the detector unit

L. Genolet, M. Aliverti, A. Balestra, O. Bellido, J. Brynnel, L. Cabona, B. Chazelas, I. Coretti, P. Di Marcantonio, C. Fuesslein, Y. Ivanisenko, A. Järvinen, A. Kaminski, J. Kern, A. Lanotte, C. Lovis, A. Marconi, E. Oliva, G. Pariani, K. Poppenhäger, E. Redaelli, M. Riva, P. Santos Diaz, M. Scalera, M. Sordet, K. Strassmeier, M. Weber, J. Weingrill, A. Zanutta

Author Affiliations +

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 131031V (2024) https://doi.org/10.1117/12.3019925
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The second generation of ELT instruments includes an optical-infrared high-resolution spectrograph, ANDES, ArmazoNes high Dispersion Echelle Spectrograph. It covers a wide spectral range that goes from 0.4 to 1.8μm (goal 0.35 to 2.4μm). A common model of detector is planned for the two visible spectrographs RIZ and UBV. A total of five detectors will cover the latter spectral range. A common detector unit design has been developed based on ELT's standard components and inspired by the previous successful detector units designed for HARPS and ESPRESSO. It consists of a 9k x 9k CCD detector, a differential vacuum cryostat that keeps the detector in its dedicated vacuum chamber and a cryocooler that cools down the detector to minimize the dark noise. The required temperature, mechanical and pressure stabilities drive the design of the detector unit.

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L. Genolet, M. Aliverti, A. Balestra, O. Bellido, J. Brynnel, L. Cabona, B. Chazelas, I. Coretti, P. Di Marcantonio, C. Fuesslein, Y. Ivanisenko, A. Järvinen, A. Kaminski, J. Kern, A. Lanotte, C. Lovis, A. Marconi, E. Oliva, G. Pariani, K. Poppenhäger, E. Redaelli, M. Riva, P. Santos Diaz, M. Scalera, M. Sordet, K. Strassmeier, M. Weber, J. Weingrill, and A. Zanutta "ANDES, the high-resolution spectrograph for the ELT: RIZ and UBV spectrographs’ preliminary design of the detector unit", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 131031V (27 August 2024); https://doi.org/10.1117/12.3019925

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