TJ, Camilla. WP12162. Continuing work in 76030

We installed a CFCS11-A adjustable SMA fiber collimator on the 50um fiber for the ETMX HWS fiber coupled LED source M530F2. This improved the size of the beam but it was still too large at the edge of the collimators range.

We removed HWS-L3 (D1800270) which made the beam a better size but still a little large ~ 10-15mm diameter at the periscope. We couldn't see a change in the beam by adjusting HWS-L2 (on translation stage). We aligned the system using the retrofection of the ALS beam: aligned ALS beam to output coup;er with HWS-MS1 and then adjusted the fiber collimator (mounted in mirror mount) to aligned the HWS output to the final iris. Confirmed we were getting a reflection of ETMX by mis-aligning it ~20urad. Note that the beam looks cleaner than usual photo, probably because the GV is closed so we are getting no retroflection of ITMX. Set frequecy to 1Hz. Replaced the mask photo and started the HWS code with new references.

The ETMX HWS 520nm beam in now injected into the vacuum where it hasn't been for ~months. Tagging DetChar. 

To do: measure the beam profile of beam out of fiber and re- calculate an imaging solution of the ETMX HR surface.