This is the Phantasmical To Do list for the 40m lab:

In-lock alignment (ASS)

• Get this system to actually work in a useful manner. The computer hardware is all there, we're just lacking person-and-will-power.

Transfer function characterization

This follows the item above, and everyone will be interested in the results. We need to characterize the:

• RSE peak
• optical spring
• coupled cavity response
• all open loop gains/cross coupling of signals
• frequency noise coupling. Finesse has shown some unexpected transfer functions to places other than the DARM signal; we should investigate these.
• other CARM transfer functions to non-traditional signal ports

Main commissioning tasks

Noise budget

• Download the sites' noise budget via CVS and adapt to 40m based on Osamu/David/Ryan/Max's work.

Controls

• Replace framebuilder RAID array with fiber link to QFS system. Rolf, Stuart, Larry.
• QPD Whitening boards: whitening filters aren't switching. Ben, Alex. **

• Protect the front end code against NaNs from ezcademod and we need to prevent ezcademod from spitting out NaNs (and find out what causes it to do so in the first place). Rolf, Rob.

• Coupling between LSC IQDemod boards and whitening boards: Add power regulators. Add heat sinks. Ben. **

- Are all controls drawings (PDFs) up-to-date on Ben & Jay's web sites?

• LSC? ASC? SUS? Ends?

PSL

* Modify ISS to make the DAQ signals fit in the ADC (110B has a +/- 2V range)

MC, MZ

SUS, LSC, ASC

- OSEM sensor glitches: still have them?

• They were isolated to be originating in ICS100b or the VME crate itself. Due to crate 5V power supply?? Rolf has a fix, used at HEPI?

- OSEM problems diagnosed by checkosem script.

- Can't put excitations into SIDE OSEM channels.

• Jay, Rolf?

Computers:

• Make GPIB work, so that we can use our USB-GPIB dongle to get data directly off of the SR785 and other instruments

DC readout

Other:

- beamline as-built documentation. Update ACad drawings.

• Mike, all.

- cranes - overheating, failures.

• Temporary solution: don't run in standby mode. Ben.

- gutters on building.

• Steve.

Ground Loops

• Power supplies, racks, optical tables, chambers, LSC PDs, cables etc.
• Get rid of all these long cables to the control room !!