First light with adaptive optics: the performance of the DKIST high-order adaptive optics
First light with adaptive optics: the performance of the DKIST high-order adaptive optics
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第一个采用自适应光学器件的光源：DKIST 高阶自适应光学器件的性能
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
F. Woeger
中科院分区：
文献类型：
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作者：
L. Johnson;E. Johansson;J. Marino;K. Richards;T. Rimmele;I. Wang;F. Woeger
美国国家科学基金会的丹尼尔. Inouye太阳望远镜（DKIST）于2019年底首次亮相。DKIST的设计包括一个波前校正系统，该系统采用自适应光学（AO），以便将衍射限制光束馈送到其第一批光科学仪器中的五个。第一光DKIST AO是一个单共轭系统，旨在实现0.3斯特列尔在500 nm的观察波长在我们预期的中位数看到r 0 = 7厘米。该系统集成了一个1600致动器变形镜（DM），一个快速倾斜（FTT）校正器，一个低延迟的混合现场可编程门阵列（FPGA）/中央处理单元（CPU）的实时控制器，和相关的夏克哈特曼波前传感器与1457个有源子孔径。我们目前的结果，从第一个光运动的DKIST，专注于AO系统的性能。我们比较的天空AO性能预测通过错误预算分析和讨论的影响，正在进行的操作DKIST和升级路径DKIST多共轭AO的性能。
The National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST) achieved first light in late 2019. The DKIST’s design includes a wavefront correction system, which incorporates Adaptive Optics (AO) in order to feed a diffraction-limited beam to five of its first-light science instruments. The first-light DKIST AO is a single-conjugate system designed to achieve 0.3 Strehl at 500 nm observing wavelength in our expected median seeing of r0 = 7 cm. The system incorporates a 1600-actuator Deformable Mirror (DM), a fast tip-tilt (FTT) corrector, a low-latency hybrid Field Programmable Gate Array (FPGA) / Central Processing Unit (CPU) real-time controller, and a correlating Shack-Hartmann wavefront sensor with 1457 active subapertures. We present results from the first light campaign of the DKIST, focusing on AO system performance. We compare the on-sky AO performance to the performance predicted through error-budget analysis and discuss implications for ongoing operation of DKIST and the upgrade path to DKIST multi-conjugate AO.