LIGO Document T1200293-v1

ITM08 Barrel damage inspection

Document #:
LIGO-T1200293-v1
Document type:
T - Technical notes
Other Versions:
Abstract:
Damage has been noted on ITM08 and ITM04 on the barrel of the optic. There is no damage to the ear flats.
One spot has a dark grey color, and has total area of ~3 square mm. The spot does not clean with Acetone, Liquinox or Freon in combination with agressive scrubbing. We assume the spot is inert, and will proceed with processing.
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