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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 25 — Sep. 1, 2007
  • pp: 6460–6468

High-accuracy differential image motion monitor measurements for the Thirty Meter Telescope site testing program

Lianqi Wang, Matthias Schöck, Gary Chanan, Warren Skidmore, Robert Blum, Edison Bustos, Sebastian Els, Reed Riddle, Juan Seguel, Tony Travouillon, Joselino Vasquez, David Walker, and Paul Gillett  »View Author Affiliations


Applied Optics, Vol. 46, Issue 25, pp. 6460-6468 (2007)
http://dx.doi.org/10.1364/AO.46.006460


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Abstract

Differential image motion monitors (DIMMs) have become the industry standard for astronomical site characterization. The calibration of DIMMs is generally considered to be routine, but we show that particular care must be paid to this issue if high-accuracy measurements are to be achieved. In a side by side comparison of several DIMMs, we demonstrate that with proper care we can achieve an agreement between the seeing measurements of two DIMMS operating under the same conditions to better than ±0.02 arc sec.

© 2007 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.7350) Atmospheric and oceanic optics : Wave-front sensing

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: March 8, 2007
Revised Manuscript: June 27, 2007
Manuscript Accepted: July 5, 2007
Published: August 31, 2007

Citation
Lianqi Wang, Matthias Schöck, Gary Chanan, Warren Skidmore, Robert Blum, Edison Bustos, Sebastian Els, Reed Riddle, Juan Seguel, Tony Travouillon, Joselino Vasquez, David Walker, and Paul Gillett, "High-accuracy differential image motion monitor measurements for the Thirty Meter Telescope site testing program," Appl. Opt. 46, 6460-6468 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-25-6460


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References

  1. M. Sarazin and F. Roddier, "The ESO differential image motion monitor," Astron. Astrophys. 227, 294-300 (1990).
  2. A. Tokovinin, "From differential image motion to seeing," Publ. Astron. Soc. Pac. 114, 1156-1166 (2002). [CrossRef]
  3. V. Kornilov, A. A. Tokovinin, O. Vozyakova, A. Zaitsev, N. Shatsky, S. F. Potanin, and M. S. Sarazin, "MASS: a monitor of the vertical turbulence distribution," Proc. SPIE 4839, 837-845 (2003). [CrossRef]
  4. A. Tokovinin, "Influence of defocus on DIMM," MASS profiler report, available at http://www.ctio.noao.edu/atokovin/profiler/archive.html (2004).
  5. R. J. Noll, "Zernike polynomials and atmospheric turbulence," J. Opt. Soc. Am. 66, 207-211 (1976). [CrossRef]
  6. These data are available at http://www.ctio.noao.edu/telescopes/dimm/dimm.html (2002).

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