The WEAVE prime focus correction: from design to integration

Albert Tomàs; Manuel Canchado; Joan Manel Casalta; Francesc Dalmases; Oscar Maroto; Carlos Martín-Nuño; Antonio Romero; J. Alfonso L. Aguerri; José Miguel Herreros; José Miguel Delgado; José Alonso Burgal; Don Carlos Abrams; Kevin Dee; Emilie Lhomé; Gavin Dalton; Kevin Middleton; Piercarlo Bonifacio; Scott C. Trager; Antonella Vallenari; Esperanza Carrasco

doi:10.1117/12.2313718

10 July 2018 The WEAVE prime focus correction: from design to integration

Albert Tomàs, Manuel Canchado, Joan Manel Casalta, Francesc Dalmases, Oscar Maroto, Carlos Martín-Nuño, Antonio Romero, J. Alfonso L. Aguerri, José Miguel Herreros, José Miguel Delgado, José Alonso Burgal, Don Carlos Abrams, Kevin Dee, Emilie Lhomé, Gavin Dalton, Kevin Middleton, Piercarlo Bonifacio, Scott C. Trager, Antonella Vallenari, Esperanza Carrasco

Author Affiliations +

Proceedings Volume 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III; 1070606 (2018) https://doi.org/10.1117/12.2313718
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

WEAVE is a new wide-field multi-object spectroscopy (MOS) facility proposed for the prime focus of the 4.2m William Herschel Telescope (WHT), situated on the island of La Palma, Canary Islands, Spain. To allow for the compensation of the effects of temperature-induced and gravity-induced image degradation, the WEAVE prime focus assembly will be translated along the telescope optical axis. The assembly comprises the prime focus corrector (PFC), a central mount for the corrector known as FTS^[1], an instrument rotator and a twin-focal-plane fibre positioner. SENER, that manufactured and delivered the FTS, is also responsible for the final design, manufacturing, integration, alignment and testing of the PFC and its ancillary equipment. This manuscript describes the final design of the PFC along with the analyses and simulations performed and presents the procedures for the integration and alignment of the lenses in the corrector.

Conference Presentation

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Albert Tomàs, Manuel Canchado, Joan Manel Casalta, Francesc Dalmases, Oscar Maroto, Carlos Martín-Nuño, Antonio Romero, J. Alfonso L. Aguerri, José Miguel Herreros, José Miguel Delgado, José Alonso Burgal, Don Carlos Abrams, Kevin Dee, Emilie Lhomé, Gavin Dalton, Kevin Middleton, Piercarlo Bonifacio, Scott C. Trager, Antonella Vallenari, and Esperanza Carrasco "The WEAVE prime focus correction: from design to integration", Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 1070606 (10 July 2018); https://doi.org/10.1117/12.2313718

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