# Panoramic optical and near-infrared SETI instrument: prototype design and testing

17 Aug 2018  ·  Cosens Maren a, b, Maire Jérôme a, Wright Shelley A. a, b, Antonio Franklin c, Aronson Michael d, Chaim-Weismann Samuel A. e, Drake Frank D. f, Horowitz Paul g, Howard Andrew W. h, Raffanti Rick i, Siemion Andrew P. V. e, f, j, k, Stone Remington P. S. l, Treffers Richard R. m, Uttamchandani Avinash n, Werthimer Dan e, o ·

The Pulsed All-sky Near-infrared Optical Search for ExtraTerrestrial Intelligence (PANOSETI) is an instrument program that aims to search for fast transient signals (nano-second to seconds) of artificial or astrophysical origin. The PANOSETI instrument objective is to sample the entire observable sky during all observable time at optical and near-infrared wavelengths over 300 - 1650 nm$^1$... The PANOSETI instrument is designed with a number of modular telescope units using Fresnel lenses ($\sim$0.5m) arranged on two geodesic domes in order to maximize sky coverage$^2$. We present the prototype design and tests of these modular Fresnel telescope units. This consists of the design of mechanical components such as the lens mounting and module frame. One of the most important goals of the modules is to maintain the characteristics of the Fresnel lens under a variety of operating conditions. We discuss how we account for a range of operating temperatures, humidity, and module orientations in our design in order to minimize undesirable changes to our focal length or angular resolution. read more

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Instrumentation and Methods for Astrophysics