LIGO Document E1500272-v2
ECR: Move HAM6 BDV2 and corresponding V-beam dump to the upstream of QPD sled and beam splitter.
E - Engineering documents
ECR for moving HAM6 BDV (beam diverter for OMCR path) to the upstream of QPD sled and the beam splitter to further reduce the back scatter in that path for O1.
Files in Document:
Sensing and Control
Notes and Changes:
Typo in V1, i.e. "At LLO, ..... and the beam splitter between M11 and M12", was fixed to "At LLO, ..... and the beam splitter between M10 and M11"
See also ECR tracker entry: