Design and performance of the PALM-3000 3.5 kHz upgrade

Seth R. Meeker; Tuan N. Truong; Jennifer E. Roberts; J. Chris Shelton; S. Felipe Fregoso; Rick S. Burruss; Richard G. Dekany; J. Kent Wallace; John W. Baker; Carolyn M. Heffner; Dimitry Mawet; Kevin M. Rykoski; Jonathan A. Tesch; Gautam Vasisht

doi:10.1117/12.2562931

13 December 2020 Design and performance of the PALM-3000 3.5 kHz upgrade

Seth R. Meeker, Tuan N. Truong, Jennifer E. Roberts, J. Chris Shelton, S. Felipe Fregoso, Rick S. Burruss, Richard G. Dekany, J. Kent Wallace, John W. Baker, Carolyn M. Heffner, Dimitry Mawet, Kevin M. Rykoski, Jonathan A. Tesch, Gautam Vasisht

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Proceedings Volume 11448, Adaptive Optics Systems VII; 114480W (2020) https://doi.org/10.1117/12.2562931
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

PALM-3000 (P3K), the second-generation adaptive optics (AO) instrument for the 5.1 meter Hale telescope at Palomar Observatory, underwent a significant upgrade to its wavefront sensor (WFS) arm and real-time control (RTC) system in late 2019. Main features of this upgrade include an EMCCD WFS camera capable of 3.5 kHz framerates and advanced Digital Signal Processor (DSP) boards to replace the aging GPU based real-time control system. With this upgrade P3K is able to maintain a lock on natural guide stars fainter than mV=16. Here we present the design and on-sky re-commissioning results of the upgraded system.

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Seth R. Meeker, Tuan N. Truong, Jennifer E. Roberts, J. Chris Shelton, S. Felipe Fregoso, Rick S. Burruss, Richard G. Dekany, J. Kent Wallace, John W. Baker, Carolyn M. Heffner, Dimitry Mawet, Kevin M. Rykoski, Jonathan A. Tesch, and Gautam Vasisht "Design and performance of the PALM-3000 3.5 kHz upgrade", Proc. SPIE 11448, Adaptive Optics Systems VII, 114480W (13 December 2020); https://doi.org/10.1117/12.2562931

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