First results on dome turbulence characterisation using the LOTUCE prototype
Abstract
Free-atmosphere and surface-layer optical-turbulence have been extensively probed over the years. However, the optical-turbulence characteristics within a telescope enclosure are not yet very well known. LOTUCE (LOcal TUrbulenCe Experiment) is an optical experiment aimed at the measurement and characterization of the optical turbulence that occurs locally in the dome under various conditions and how it may interact with the surface-layer optical turbulence for instance. We present the experimental setup of LOTUCE and the results of the first measurements that were carried-out at the 1.52m telescope dome at La Silla Observatory. We then discuss the instrument capabilities, its actual limitations, and the undergoing effort to upgrade the present prototype.
- Publication:
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Proceedings of the Third AO4ELT Conference
- Pub Date:
- December 2013
- DOI:
- 10.12839/AO4ELT3.13309
- Bibcode:
- 2013aoel.confE..60B
- Keywords:
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- Atmospheric turbulence and AO disturbances