Characterization of skipper CCDs for cosmological applications

Alex Drlica-Wagner; Edgar Marrufo Villalpando; Judah O'Neil; Juan Estrada; Stephen Holland; Noah Kurinsky; Ting Li; Guillermo Fernandez Moroni; Javier Tiffenberg; Sho Uemura

doi:10.1117/12.2562403

13 December 2020 Characterization of skipper CCDs for cosmological applications

Alex Drlica-Wagner, Edgar Marrufo Villalpando, Judah O'Neil, Juan Estrada, Stephen Holland, Noah Kurinsky, Ting Li, Guillermo Fernandez Moroni, Javier Tiffenberg, Sho Uemura

Author Affiliations +

Proceedings Volume 11454, X-Ray, Optical, and Infrared Detectors for Astronomy IX; 114541A (2020) https://doi.org/10.1117/12.2562403
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

We characterize the response of a novel 250 µm thick, fully-depleted Skipper Charged-Coupled Device (CCD) to visible/near-infrared light with a focus on potential applications for astronomical observations. We achieve stable, single-electron resolution with readout noise σ 0.18 e⁻ rms/pix from 400 non-destructive measurements of the charge in each pixel. We verify that the gain derived from photon transfer curve measurements agrees with the gain calculated from the quantized charge of individual electrons to within < 1%. We also perform relative quantum efficiency measurements and demonstrate high relative quantum efficiency at optical/near- infrared wavelengths, as is expected for a thick, fully depleted detector. Finally, we demonstrate the ability to perform multiple non-destructive measurements and achieve sub-electron readout noise over configurable sub- regions of the detector. This work is the first step toward demonstrating the utility of Skipper CCDs for future astronomical and cosmological applications.

Conference Presentation

Citation Download Citation

Alex Drlica-Wagner, Edgar Marrufo Villalpando, Judah O'Neil, Juan Estrada, Stephen Holland, Noah Kurinsky, Ting Li, Guillermo Fernandez Moroni, Javier Tiffenberg, and Sho Uemura "Characterization of skipper CCDs for cosmological applications", Proc. SPIE 11454, X-Ray, Optical, and Infrared Detectors for Astronomy IX, 114541A (13 December 2020); https://doi.org/10.1117/12.2562403

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