Reports until 14:23, Monday 20 October 2014
H1 SYS
daniel.sigg@LIGO.ORG - posted 14:23, Monday 20 October 2014 (14523)
Commissioning calendar for next 2 weeks

Here is the list of commissioning task for the next 7-14 days:

Locking team:

  1. Measure recycling gain and try explaining low value.
  2. Measure power dependence of demod phase in DRMI.
  3. Check demod phase after the IMC as function of power.
  4. Change 1f/5f relative phase and look at DRMI stability.
  5. Common hand-off to transmitted power.
  6. Lock interferometer.

Alignment team:

  1. Revisit EY green WFS beam path and look for ghost beams.
  2. Make EY green WFS work again.
  3. Install EX green WFS auto-centering hardware.
  4. Commission an arm alignment controls topology which can be used for initial alignment.
  5. Integrate green WFS into initial alignment.
  6. Commission more WFS dofs in DRMI
  7. Improve stability of DRMI alignment.

SEI/SUS team:

  1. Install new models for violin mode damping.
  2. Commission violin mode damping.
  3. Install new ESD linearization code.
  4. Commission ESD linearization.
  5. Pump HAM1 to reduced periscope vibrations(?)

RF:

  1. Make an assessment of RF cross talk into the IMC AOM.
  2. Investigate EMI radiation by the VCOs and the fixed frequency OCXO.

TCS:

  1. Finish commissioning  ring heaters and CO2 lasers.
  2. Optimize mode matching and Michelson contrast defect.