The Large UV/Optical/IR Surveyor (LUVOIR) is one of four Astro2020 Decadal Survey Missions, a concept for ‘flag-ship’ class space-borne observatory, operating across the multi-wavelength UV/Optical/NIR spectra. An Optical Telescope concept being considered is the segmented primary mirror architecture with composite backplane structure. In order to achieve the high-contrast imaging required to satisfy the primary science goals of this mission would require a pico-meter wavefront RMS stability over a wavefront control time step, a milli-Kelvin level thermometry sensing and control, and near-zero CTE materials. The LUVOIR primary mirror segment assemblies and composite backplane support structure require active thermal management to maintain operational temperature during flight operations. Furthermore, the active thermal control must be sufficiently stable to prevent time-varying thermally induced structure distortions to minimize optical aberrations. This paper describes a Thermal System Architecture of 2 concepts considered for the LUVOIR decadal study, and a systematic approach to developing a thermal architecture of modular composite sections of the mirror support structure and primary mirror segment assemblies.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    LUVOIR Thermal Architecture Overview and Enabling Technologies for Picometer-Scale WFE Stability




    Publication date :

    2019-03-01


    Size :

    4079980 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    LUVOIR Telescope Design Overview

    M. R. Bolcar / G. West | NTIS | 2016


    LUVOIR Telescope Design Overview

    Bolcar, Matthew R. / West, Garrett | NTRS | 2016



    Overview of the Optomechanical Design of the LUVOIR Instrument

    Corsetti, James / Bolcar, Matthew / Crooke, Julie et al. | NTRS | 2019