Damage test Ink and First Contact

Document #:

LIGO-T2000526-v1

Document type:

T - Technical notes

Abstract:

Witness sample, SN0919-12 LMA Coating Run C11068 was prepared with lines of ink and shards of First Contact.
First Test: Damage found in one location on last ink line (no FC removal) 2 W/mm^2 - found later to be an accidental high power exposure
Second Test: Damage in ink
Third Test: More damage in ink
Never any damage in first contact

Files in Document:

• T2000526 Ink and First Contact Damage test.pdf (59.9 MB)

Other Files:

• T2000526 Ink and First Contact Damage test.pptx (18.5 MB)
• 2 W/mm^2 damage in ink (c11068-12_sn0919_hrabs_082020_1.pdf, 1.0 MB)
• 20 W/mm^2 damage in ink (c11068-12_sn0919_hrabs_082420_1.pdf, 144.8 kB)
• 200 W/mm^2 (c11068-12_sn0919_hrabs_082820_1.pdf, 145.9 kB)
• 200 W/mm^2 after cleaning (c11068-12_sn0919_hrabs_090320_1.pdf, 135.7 kB)

Topics:

• Core Optics
• Cleaning

Authors:

• GariLynn Billingsley
• Liyuan Zhang

Referenced by:

• LIGO-E1100439-v7: General Optics Cleaning Procedure