@inproceedings{9892510b48ad4a2cb53b9c1145db882f,
title = "Initial performance testing for the wavefront sensor image acquisition system of the ULTIMATE-Subaru ground-layer adaptive optics",
abstract = "This paper presents the initial performance results of the wavefront sensor Image Acquisition System (IMAQ) developed for the ULTIMATE-Subaru ground-layer adaptive optics (GLAO) system. The IMAQ consists of eight sCMOS cameras (Hamamatsu ORCA-Fusion BT) to measure the wavefront from four NGSs and four LGSs at a maximum frame rate of 500 Hz, frame grabber boards to acquire the data from the cameras, and a PC to process and transfer the acquired images to the GLAO real-time control system. Within the GLAO error budget, the IMAQ contributes to both measurement error and temporal error. The performance of the IMAQ system is assessed in terms of latency and noise characteristics. Based on the results, we confirm that the IMAQ system meets the performance requirements for the ULTIMATE-Subaru GLAO system. We also introduce a custom FPGA-based IMAQ designed to synchronously acquire data from the eight cameras, which is currently under development to replace the PC-based control system.",
keywords = "Scientific CMOS camera, Wavefront sensor",
author = "Koki Terao and Yosuke Minowa and Yoshito Ono and Hiroshige Yoshida and Yoko Tanaka and Masayuki Akiyama and Celine D{\textquoteright}Orgeville and Rey, \{Noelia Martinez\} and Hajime Ogane",
note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Adaptive Optics Systems IX 2024 ; Conference date: 16-06-2024 Through 22-06-2024",
year = "2024",
doi = "10.1117/12.3019663",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Jackson, \{Kathryn J.\} and Dirk Schmidt and Elise Vernet",
booktitle = "Adaptive Optics Systems IX",
address = "United States",
}