TROIA Adaptive Optics System for DAG Telescope; Assembly and Laboratory Performance prior to On-Sky Assessment

Keskin O., Jolissaint L., Bouxin A., Yesilyaprak C.

Conference on Adaptive Optics Systems VIII Part of SPIE Astronomical Telescopes and Instrumentation Conference, Montreal, Kanada, 17 - 22 Temmuz 2022, cilt.12185 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 12185
  • Doi Numarası: 10.1117/12.2630893
  • Basıldığı Şehir: Montreal
  • Basıldığı Ülke: Kanada
  • Anahtar Kelimeler: Adaptive optics, pyramid wavefront sensor, EMCCD, DAG telescope
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this article, we describe the current status of the development of TROIA* a pyramid wavefront sensor based adaptive optics system designed for DAG, a new 4 m telescope located in Eastern Anatolia, Turkey. The wavefront uses a no-noise electron-multiplied CCD camera, and the deformable mirror has a large actuators density, allowing coronagraphic science in one hand, but also system optimization for low light level or bad seeing conditions thanks to the versatility of the P-WFS. We describe the optical design, the mounting and alignment procedure and our loop control concept. Closed loop results are described, showing that while there are still many issues to fix before the sky version, the system behaves as expected.