Exhibit B: Specification for M2 Segment Blank - Thirty Meter Telescope
Exhibit B: Specification for M2 Segment Blank - Thirty Meter Telescope
Exhibit B: Specification for M2 Segment Blank - Thirty Meter Telescope
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TMT.OPT.SPE.07.005.REL01 Page 14 of 20<br />
SECONDARY MIRROR BLANK SPECIFICATIONS 1/12/2010<br />
Table 2. Inclusion and Defect Limits<br />
INCLUSION LIMITS<br />
INSPECTION<br />
REGION<br />
* Within or partially within the Critical Zone<br />
DEFECT LIMITS<br />
INSPECTION<br />
REGION<br />
Inside Critical<br />
Cracks<br />
Zone*<br />
Outside Critical<br />
Cracks<br />
Zone<br />
Entire Surface of<br />
Chips<br />
Critical Zone<br />
Entire Surface<br />
Chips except Critical<br />
Zone<br />
Cracks<br />
Inside Critical<br />
Zone*<br />
Outside Critical<br />
Zone<br />
Entire Surface<br />
* Within or partially within the Critical Zone<br />
MEAN INSPECTION MAX<br />
DIAMETER VOLUME QUANTITY<br />
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