Design of a Skipper CCD focal plane for the SOAR Integral Field Spectrograph

Edgar Marrufo Villalpando; Alex Drlica-Wagner; Marco Bonati; Abhishek Bakshi; Vanessa Bawden de Paula Macanhan; Braulio Cancino; Gregory E. Derylo; Juan Estrada; Guillermo Fernandez Moroni; Luciano Fraga; Stephen Holland; Michelle J. Jonas; Agustín Lapi; Peter Moore; Andrés A. Plazas Malagón; Leandro Stefanazzi; Javier Tiffenberg

doi:10.1117/12.2629475

29 August 2022 Design of a Skipper CCD focal plane for the SOAR Integral Field Spectrograph

Edgar Marrufo Villalpando, Alex Drlica-Wagner, Marco Bonati, Abhishek Bakshi, Vanessa Bawden de Paula Macanhan, Braulio Cancino, Gregory E. Derylo, Juan Estrada, Guillermo Fernandez Moroni, Luciano Fraga, Stephen Holland, Michelle J. Jonas, Agustín Lapi, Peter Moore, Andrés A. Plazas Malagón, Leandro Stefanazzi, Javier Tiffenberg

Author Affiliations +

Proceedings Volume 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X; 121910U (2022) https://doi.org/10.1117/12.2629475
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

We present the development of a Skipper Charge-Coupled Device (CCD) focal plane prototype for the SOAR Telescope Integral Field Spectrograph (SIFS). This mosaic focal plane consists of four 6k × 1k, 15 μm pixel Skipper CCDs mounted inside a vacuum dewar. We describe the process of packaging the CCDs so that they can be easily tested, transported, and installed in a mosaic focal plane. We characterize the performance of ∼ 650μm thick, fully-depleted engineering-grade Skipper CCDs in preparation for performing similar characterization tests on science-grade Skipper CCDs which will be thinned to 250μm and backside processed with an antireflective coating. We achieve a single-sample readout noise of 4.5 e− rms/pix for the best performing amplifiers and subelectron resolution (photon counting capabilities) with readout noise σ ∼ 0.16 e− rms/pix from 800 measurements of the charge in each pixel. We describe the design and construction of the Skipper CCD focal plane and provide details about the synchronized readout electronics system that will be implemented to simultaneously read 16 amplifiers from the four Skipper CCDs (4-amplifiers per detector). Finally, we outline future plans for laboratory testing, installation, commissioning, and science verification of our Skipper CCD focal plane.

Conference Presentation

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Edgar Marrufo Villalpando, Alex Drlica-Wagner, Marco Bonati, Abhishek Bakshi, Vanessa Bawden de Paula Macanhan, Braulio Cancino, Gregory E. Derylo, Juan Estrada, Guillermo Fernandez Moroni, Luciano Fraga, Stephen Holland, Michelle J. Jonas, Agustín Lapi, Peter Moore, Andrés A. Plazas Malagón, Leandro Stefanazzi, and Javier Tiffenberg "Design of a Skipper CCD focal plane for the SOAR Integral Field Spectrograph", Proc. SPIE 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X, 121910U (29 August 2022); https://doi.org/10.1117/12.2629475

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