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22 July 2014 Save our secondary: recovering a broken 1.3-m mirror
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In an inauspicious start to the ultimately very successful installation of the Dark Energy Camera on the V. M. Blanco 4- m telescope at CTIO, the light-weighted Cer-Vit 1.3-m-diameter secondary mirror suffered an accident in which it fell onto its apex. This punched out a central plug of glass and destroyed the focus and tip/tilt mechanism. However, the mirror proved fully recoverable, without degraded performance. This paper describes the efforts through which the mirror was repaired and the tip/tilt mechanism rebuilt and upgraded. The telescope re-entered full service as a Ritchey- Chrétien platform in October of 2013.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Timothy M. C. Abbott, Ronald G. Probst, Gary Poczulp, Roberto Tighe, Patricio Schurter, Andrés Montané, Joseph DeVries, Ronald C. Harris, Jonathan Elias, Manuel Martinez, and Oscar Saa "Save our secondary: recovering a broken 1.3-m mirror", Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 914542 (22 July 2014);


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