Betsy, Daniel, Fil, Elenna, Jennie, Sheila, Ryan S, Camilla

Day 1: 84193, Day 2: 84228, Day 3: 84230 and 84239

• The majority of the day was spent with Betsy and myself fixing the broken REFL ASC connectors, details in 84265.
  • Daniel confirmed all signals now look good.
  • Need to confirm what S/N cable is now in what position.
• Betsy installed the pico motor cable from feedthrough to cable bracket and we plugged in all picos. Fil and Daniel installed the in-air cable.
  • Betsy and I tested that the piocmotors on the SLED (controller 2, motors 3 and 4) worked, however the medm labels or cables are swapped (ASC REFL A centering =  ASC REFL B centering), need to decide which to change.
• Betsy and I aligned ASC REFL A and B diodes, we confirmed that all segments saw the signal (block, unblocked beam) and used the picos to center the beams, plots attached.
  • The reflected beam from ASC REFL A was was dumped
  • After we finished centering I couldn't  find that ASC REFL B reflected beam,  so we need to tilt the diode more to dump the beam and realign the diode. 
• Jennie and Elenna (84254) and then myself and Elenna (84266) finished the last REFL path beam profiling measurements needed.
  • Betsy and myself measured the distances between optics for the beam profiling measurements: 84263
• Sheila, Ryan and Elenna looked into isolating the ISIs and the pointing of optics to get POP flashes: 84261
  • All isolated apart from HAM3 kept tripping so was left in ISI_DAMPED_HEPI_OFFLINE but PR2 alignment was adjusted a few urad to compensate for this.
  • I could see POP flashes with the 200mW beam using the IR card AND IR viewer, it was missing the periscope by ~1" in -Y.

To do's from this alog: Confirm ASC REFL RF cable numbers, decide whether to swap SLED pico cables or medm names, tilt ASC REFL B diode to dump reflected beam and realign.

Other things that still need to be done in REFL path: Move LSC diodes to correct to distance (so beam has 0.2 to 0.3mm beam raduis) and check alignment of beam on these diodes.

After this we will be ready ot move onto the POP path, Keita is checking the expected separation of POP and ASLS beams as it's important we don't center the shared optics on the POP path only.