For WP 4409
Work done, VEA transitioned back to laser SAFE.
The h1nds0 daqd will be shut down for up to 10 minutes to build RCG 2.8.2 versions of daqd to support longer frames. Longer frame collection should be implemented about 11:00 PST for h1fw0. Following about an hour of testing, and assuming testing is successful, longer frame writing will be implemented on h1fw1 about 12:00 PST.
Due to frame writer 0 crashing 35 minutes after starting while writing longer frames, we are delaying the change to framewriter 1 until 13:00 PST at the earliest.
HAM4 and HAM5 are different compared to HAM236, because of the ST0-L4Cs. Consequently, we need to use the proper blocks for the BIO cards.
The changes have been made (see pic attached), the models recompiled and restarted. Everything went fine.
Done
Done
@9:45
Thomas out of LVEA
Done
Restart DAQ to load new .ini file for h1isiham4.
This is HughR, not Jim.
The current running configuration of the ETMX is almost as it was when Hugo logged the operational state 6 Dec. That was before the ISC etc crew began complaining that the ISI was broke or at least made things worse. I don't have an explainatioin why that period of poor ISI performance occurred. Was the HEPI & ISI too tilted? Things seem to be better since we eased the tilting (~13 Jan) though we weren't happy until now. The large drives on the ISI required to hold the tilted Optical Table with the Tilted HEPI may cause performance issues. RyanD of LLO would be seeking relief of our 1000s count drives.
The ISI blends are all 750 mHz except for X & Y dofs on Stage1. These are set to T100mHz with a 0.44Hz notch. This is the configuration from early December. Yesterday Sebastian added another Notch closer 0.5Hz on the X & Y dofs to address a peak on the Oplev pitch and the MO L.
The ITMX which was not commissioned in early December. The ITM now has the same controls as the ETM. Sebastian added a number of filters and taylored another notch as well. Both ETM and ITM are running the level 1 gain bank.
Sebastian also added Feed Forward from the HEPI L4Cs but didn't think it did very much, at least in the current area of interest for the ISC crew.
I'd be sckeptical that this state can be reached with one button push. Engaging the Trillium blend directly may be tricky and may have to be switched on when things have settled down after turning them on with out the Trilliums.
Installing beam dump on top of HAM2. Requires a soft close of gate valves. Permits 4407 and 4408.
(Kyle, Gerardo)
Soft closed gate valve #7 to install beam dump on top of HAM2, 4:10 pm.
Opened gate valve #7 at 5:05 pm.
(Kiwamu, Stefan, Gerardo)
Attempted to install temporary beam dump on top of HAM2, but it turns out that the modified viewport protector is not the right one. Procedure was stopped until correct part is obtained. Viewport was restored to previous state.
