CCAT: a status update on the EoR-Spec instrument module for Prime-Cam

Rodrigo Freundt; Yaqiong Li; Doug Henke; Jason Austermann; James R. Burgoyne; Scott Chapman; Steve K. Choi; Cody J. Duell; Zach Huber; Michael Niemack; Thomas Nikola; Lawrence Lin; Dominik A. Riechers; Gordon Stacey; Anna K. Vaskuri; Eve M. Vavagiakis; Jordan Wheeler; Bugao Zou

doi:10.1117/12.3018477

16 August 2024 CCAT: a status update on the EoR-Spec instrument module for Prime-Cam

Rodrigo Freundt, Yaqiong Li, Doug Henke, Jason Austermann, James R. Burgoyne, Scott Chapman, Steve K. Choi, Cody J. Duell, Zach Huber, Michael Niemack, Thomas Nikola, Lawrence Lin, Dominik A. Riechers, Gordon Stacey, Anna K. Vaskuri, Eve M. Vavagiakis, Jordan Wheeler, Bugao Zou

Author Affiliations +

Proceedings Volume 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII; 131020U (2024) https://doi.org/10.1117/12.3018477
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The Epoch of Reionization Spectrometer (EoR-Spec) is an upcoming Line Intensity Mapping (LIM) instrument designed to study the evolution of the early universe (z = 3.5 to 8) by probing the redshifted [CII] 158 μm fine-structure line from aggregates of galaxies. The [CII] emission is an excellent tracer of star formation since it is the dominant cooling line from neutral gas heated by OB star light and thus can be used to probe the reionization of the early Universe due to star formation. EoR-Spec will be deployed on Prime-Cam, a modular direct-detection receiver for the 6-meter Fred Young Submillimeter Telescope (FYST), currently under construction by CPI Vertex Antennentechnik GmbH and to be installed near the summit of Cerro Chajnantor in the Atacama Desert. This instrument features an image plane populated with more than 6500 Microwave Kinetic Inductance Detectors (MKIDs) that are illuminated by a 4-lens optical design with a cryogenic, scanning Fabry-Perot Interferometer (FPI) at the pupil of the optical system. The FPI is designed to provide a spectral resolving power of R ∼ 100 over the full spectral range of 210–420 GHz. EoR-Spec will tomographically survey the E-COSMOS and E-CDFS fields with a depth of about 4000 hours over a 5 year period. Here we give an update on EoR-Spec’s final mechanical/optical design and the current status of fabrication, characterization and testing towards first light in 2026.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Rodrigo Freundt, Yaqiong Li, Doug Henke, Jason Austermann, James R. Burgoyne, Scott Chapman, Steve K. Choi, Cody J. Duell, Zach Huber, Michael Niemack, Thomas Nikola, Lawrence Lin, Dominik A. Riechers, Gordon Stacey, Anna K. Vaskuri, Eve M. Vavagiakis, Jordan Wheeler, and Bugao Zou "CCAT: a status update on the EoR-Spec instrument module for Prime-Cam", Proc. SPIE 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 131020U (16 August 2024); https://doi.org/10.1117/12.3018477

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