Overview of the mechanical design for the GIRMOS imager subsystem

Vlad Reshetov; Jeffrey Crane; Jenny Atwood; Alan McConnachie; Tim Hardy; Scott MacDonald; Jordan Lothrop; Jonathan Stocks

doi:10.1117/12.3019603

18 July 2024 Overview of the mechanical design for the GIRMOS imager subsystem

Vlad Reshetov, Jeffrey Crane, Jenny Atwood, Alan McConnachie, Tim Hardy, Scott MacDonald, Jordan Lothrop, Jonathan Stocks

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130966H (2024) https://doi.org/10.1117/12.3019603
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The Gemini Infrared Multi-Object Spectrograph (GIRMOS) is a powerful next-generation multi-object near-infrared spectrograph incorporating parallel imaging capabilities. In addition to closed-loop Gemini North Adaptive Optics (GNAO) system, each of the four GIRMOS Integral field spectrographs (IFSs) will independently perform additional multi-object AO correction in an open loop. The combined instrument will provide unique scientific capabilities such as simultaneous imaging/spectroscopy modes (for precision spectrophotometry) and interleaved imaging-spectroscopyimaging modes (for characterizing time-variable sources). In this paper, we provide a detailed updates and discussion of the mechanical design and analysis of the imager subsystem of the GIRMOS instrument, which is currently in the Critical Design Review (CDR) stage. We place particular emphasis on the design and testing of two cryogenic mechanisms—the filter wheel and the PRS deployment mechanism—along with the innovative design of cryogenic optical mounts.

Citation Download Citation

Vlad Reshetov, Jeffrey Crane, Jenny Atwood, Alan McConnachie, Tim Hardy, Scott MacDonald, Jordan Lothrop, and Jonathan Stocks "Overview of the mechanical design for the GIRMOS imager subsystem", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130966H (18 July 2024); https://doi.org/10.1117/12.3019603

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