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The primary mirror for the National Science Foundation (NSF) Daniel K. Inouye Solar Telescope (DKIST) -- the heart of this sophisticated instrument -- was successfully delivered Aug. 2 to its destinat...
The primary mirror (M1) of the Thirty Meter Telescope (TMT) is composed of 492 hexagonal segments of circumscribed diameter 1.43m, as shown in Figure 1. The out-of-plane degrees of freedom are contro...
The primary mirror segments are passively constrained in the three lateral degrees of freedom. We evaluate the segment lateral motions due to the changing gravity vector and temperature, using site ...
In order for the Thirty Meter Telescope (TMT) to achieve the required optical performance, each of its 738 primary mirror segments must be positioned relative to adjacent segments with nanometer-lev...
This paper describes the studies performed to establish a baseline conceptual design of the Segment Support Assembly (SSA) for the Thirty Meter Telescope (TMT) primary mirror. The SSA uses a combinat...
The Thirty Meter Telescope (TMT) project, a partnership between ACURA, Caltech, and the University of California, is currently developing a 30-meter diameter optical telescope. The primary mirror wi...
This paper presents refinements to the design of the TMT primary mirror segment passive-support system that are effective in reducing gravity print-through and thermal distortion effects. First, a no...

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