S. Muusse, C. Compton, G. Valente

Alignment of 4.65um beam on the ITMY was completed, excluding the QPD optics which require reflection off the ITM. I've attached a picture of the almost complete table with the notable optics modified today indicated. I'll get someone taller to add a better picture in the comments of the whole table.

• All the PD optics were placed and aligned (another picture).
• The PD electronics (x-arm Chassis & PD power supply) were temporarily installed and slow and monitor channels were shown to be operational.
• Thermal pickoff aligned.
• The beam dump flipper orientation has been problematic but has been solved by dumping when the flipper is vertical and placing the beam dump at a ≈ 30deg angle (picture attached).

Next steps:

• Installing the visible laser and associated optics
• Testing the rotation mount and translation mount
• Testing y-arm chassis

The Medm screen is now in a workable form if not particularly finessed.The screen is called TCS_CHETA.adl and a shortcut was added for the X and Y arms by camilla to the TSC screen.
There is still work to be done here calibrating the powerdetectors and power meters.
note: currently power in for the rotation mount .adl is the laser diode current and should be changed to laser power when calibrated