Methanol Spray Optic Cleaning Procedure

Document #:

LIGO-T1100286-v2

Document type:

T - Technical notes

Abstract:

This procedure was developed at LHO with Betsy Bland and Lisa Barsotti as an alternative to drag wiping optics that have large particulates on them. Spraying down the optics with methanol washes off the particulates without dragging them around. Reference the General Optics cleaning Procedure to see which optics need to be cleaned this way.
Ion gun note:
Replace ion gun filters every 3 months.
Do not exceed 30psi going to a terra universal ion gun, it will damage the filter.

Files in Document:

• methanol spray procedure v2.pdf (file is not accessible)

Other Files:

• methanol spray procedure v2.doc (file is not accessible)

Topics:

• Input Optics
• Auxiliary Optics
• Cleaning

Authors:

• Margot Hennig

Notes and Changes:

v2 is updated to include important safety information. (Using chemical splash goggles and keeping ion gun unplugged when around liquid methanol)

Referenced by:

• LIGO-E000007-v4: Liquinox Cleaning Procedure
• LIGO-E1100439-v7: General Optics Cleaning Procedure