ETM11 HR coating pinhole, waiver

Document #:

LIGO-E1500149-v1

Document type:

E - Engineering documents

Abstract:

There is a pinhole in the HR coating.
Transmission of a 0.5 mm (w) beam is 220 ppm at a distance of 27.55 mm from the center of the optic.
This is acceptable based on T1000154
See also E1500121.

Files in Document:

• etm11_t_021715_Pinhole.pdf (25.6 kB)

Topics:

• Quality Assurance
• Core Optics
• Subsystem Test

Authors:

• GariLynn Billingsley

Keywords:

ETM11

Related Documents:

• LIGO-E1100880: ETM11 Characterization

Referenced by:

• LIGO-E1500147-v1: aLIGO, Waiver Log