Given below are the list of things I did in HAM7 to prepare for the close out of the chamber.

- Took particle counts outside and inside the chamber and they were zero (inside chamber) and few tens (outside chamber).

- Removed the two irises from the chamber and handed it over to Camilla (wrapped and bagged).

- ZM4 & ZM5: checked their pitch adjuster is locked, checked their dog clamps, checked all the EQ stops, centered the BOSEMs and took transfer function measurements - they look good.

- Confirmed that all wiring appears properly secured and is free of the beam path.

- Placed a silicon wafer inside the chamber on the ISI table.

- Removed all tools from the chamber (checked it twice).

- Took pictures - attached below.

Currently Fil is performing ground loop checks and Jim is un-locking the ISI.

We will be ready to put the doors once SEI and SUS transfer function measurements comes out healthy.