corey.gray@LIGO.ORG - posted 23:14, Wednesday 14 November 2018 - last comment - 12:57, Friday 17 January 2025(45293)
HAM1 Summary: Beam Diverter Optic Swap, New REFL PD Prep Work, (4) L4C sensors installed inside Optics Table
(Niko, Corey, Hugh, Keita, Georgia, Craig, Richard, Fil, Ed)
Today was the big day to squeeze in a variety of HAM1 Tasks. Once the doors were removed this morning, a suite of activities ensued:
- HAM1 Checklist items post doors removal:
- Installed (2) separate cable runs for the (4) L4C pods to be installed.
- Installed (2) cables for the new in-vac REFL_B PD.
- Continuity test run on cables: PASSED
- New REFL PD assembled & coarsley installed
- Flashlight test (& compared to original REFL_A PD): PASSED
- 90/10 beamsplitter removed from Beam Diverter & swapped with a High Reflector + Black Glass
- Beam Diverter operation tested: PASSED
- (2) L4C Pod Cable runs were tested with emulator: PASSED
- Installed (4) L4C Pods inside the HAM1 Optic Table
- Adjusted ASC_REFL_A Beam-dump to clear optics table 1/4-20 hole.
- Removed cable clamp near RM1 (for the REFL_A PD) to allow for access work for installation.
Hugh will post specifics for L4C installation and for remaining tasks (and I will post photos).
Keita will post specifics for REFL_B PD installation.
Since, there has been a recent search for the D1300278 cables, and just for documentation, wanting to update this alog to note that the cable for this new REFL PD (LSC REFL B) was D1300278-V2-S1301459 (the shorter 106" long cable) and entered into ICS for this installation in Nov2018.