ISIs (BSC1, BSC2, BSC6)
With the recent measurements (in vacuum), I created sets of filters for the ISI-BSC1, ISI-BSC2, ISI-BSC6. I installed:
- Compensation filters
- Calibration filters
- Symmetrization filters
- Damping filters
- Blend filters (750mHz and 250mHz with T240 or not)
- Isolation filters (UGF 15Hz)
Isolation filters were engaged and decent isolation performances were obtained (similar to OAT).
HEPI (BSC6)
The HEPI pump was restarted on April 26th and the STS-2 can now be centered via the binary outputs. A set of transfer functions was measured. Filters were refreshed and tweaked with the new version of the scripts. The new filters are installed on the front end.