DAG-TGI: turbulence generator instrument for DAG (Eastern Anatolia Observatory)

Cahit Yeşilyaprak; Onur Keskin; Ümit Bora Akbulak; Cihan Tuğrul Tezcan; Furkan Güvenir; Ömer Faruk Aydemir

doi:10.1117/12.2313500

18 July 2018 DAG-TGI: turbulence generator instrument for DAG (Eastern Anatolia Observatory)

Cahit Yeşilyaprak, Onur Keskin, Ümit Bora Akbulak, Cihan Tuğrul Tezcan, Furkan Güvenir, Ömer Faruk Aydemir

Author Affiliations +

Proceedings Volume 10703, Adaptive Optics Systems VI; 107036T (2018) https://doi.org/10.1117/12.2313500
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

DAG (East Anatolia Observatory) Telescope has 4 m mirror with active optics (aO) and adaptive optics (AO) systems. In order to evaluate DAG's focal plane instruments and their installation, calibration and laboratory performance, one must emulate the atmospheric turbulence condition on DAG site. Although atmospheric conditions of the site are gathered from various meteorological and astronomical instruments, a turbulence generator instruments (TGI) is designed and characterized to emulate the similar characteristics. The design of the TGI is based on the forcing of cold air and temperature controllable hot air at adjustable wind speeds within a confined chamber, where the atmospheric turbulence strength is altered. First results of the TGI have been presented in this article for DAG's AO system.

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Cahit Yeşilyaprak, Onur Keskin, Ümit Bora Akbulak, Cihan Tuğrul Tezcan, Furkan Güvenir, and Ömer Faruk Aydemir "DAG-TGI: turbulence generator instrument for DAG (Eastern Anatolia Observatory)", Proc. SPIE 10703, Adaptive Optics Systems VI, 107036T (18 July 2018); https://doi.org/10.1117/12.2313500

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