PSL installation team

- This morning we turned the Laser off to perform some tests on the xtal water circuit. The goal was to get rid of some mechanical vibrations, which are caused by this loop, by adding a special damper. The data are still under investigation.

- We made some progress in the alignment of the optical path: The path to the FSS is partly set and the FSS AOM as aligned in single-pass. 

- The water hose, which is connected to the xtal chiller, suddenly burst, which triggered the laser interlock. It seems that the flow/pressure, provided by this chiller was too high (we already saw the bulging hoses before). The flow is now decreased by the chiller's bypass valve from 20.5 lpm to 18 lpm (same as in H2 setup). Therefore, the flow rates at the water manifold had to be reset.