Jim, Hugo,
IO signed off on HAM3 this afternoon. We went in and balanced the ISI. The payload is not supposed to change anymore. We recorded the CPS readouts for both locked and unlocked configurations:
| Locked (Counts) |
Unlocked |
Shift (Counts) |
|
| H1 | -380 | 87.98 | 467.98 |
| H2 | 170 | 504.36 | 334.36 |
| H3 | -60 | 139.12 | 199.12 |
| V1 | 120 | 145.64 | 25.64 |
| V2 | -350 | -518.82 | 168.82 |
| V3 | 250 | 108.37 | 141.63 |
Requirements are (E1000309-v12):
shift<1600cts
Readouts<2000cts
The locked/unlocked shifts are way within requirements. We are looking forward to hearing back from IO on how unlocking affected them, if it did.
All electronics are powered back up. covers are held up with clippers and testing signs are on. The first measurements for the final in-chamber testing of HAM3-ISI will start tonight.
Note: The HAM-ISI master model was updated by LLO today. We are still running the previous version. I will soon transfer the update here.
Giacomo, Hugo,
We checked that the cavity was still flashing with the ISI unlocked. It is.
We then tried turning on the damping and the controllers level 2. The cavity was still flashing.