ESA’s science next generation detector characterization bench

Prod’homme, Thibaut; Blommaert, Sander; Meoli, Alessandro; Visser, Ivo; Lemmel, Frederic; Shortt, Brian; Etchells, James; Robinson, Conor; Milassin, Gabor; Breeveld, Dennis; Haar, Joerg Ter; Verhoeve, P.

doi:10.1117/12.2629451

X-Ray, Optical, and Infrared Detectors for Astronomy X 2022

DOI: 10.1117/12.2629451

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ESA’s science next generation detector characterization bench

Thibaut Prod’homme

Sander Blommaert²,

Alessandro Meoli³

et al.

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Smartphone Screens as Astrometric Calibrators

Walk¹,

Claveau²,

Bottom³

et al. 2023

J. Astron. Instrum.

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Geometric optical distortion is a significant contributor to the astrometric error budget in large telescopes using adaptive optics. To increase astrometric precision, optical distortion calibration is necessary. We investigate using smartphone Organic Light-Emitting Diode (OLED) screens as astrometric calibrators. Smartphones are low-cost, have stable illumination, and can be quickly reconfigured to probe different spatial frequencies of an optical system’s geometric distortion. In this work, we characterize the astrometric accuracy of a Samsung S20 smartphone, with a view towards providing large format, flexible astrometric calibrators for the next generation of astronomical instruments. We find the placement error of the pixels to be 189[Formula: see text]nm ± 15[Formula: see text]nm Root Mean Square (RMS). At this level of error, milliarcsecond astrometric accuracy can be obtained on modern astronomical instruments.

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Smartphone Screens as Astrometric Calibrators

Walk¹,

Claveau²,

Bottom³

et al. 2023

J. Astron. Instrum.

View full text Add to dashboard Cite

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ESA’s science next generation detector characterization bench

Cited by 1 publication

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Smartphone Screens as Astrometric Calibrators

Smartphone Screens as Astrometric Calibrators

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