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Size: 2522
Comment:
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Size: 1857
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 7: | Line 7: |
| At Kamioka (Mark, Fabian, Enzo, Perry, Hirata-san): | |
| Line 9: | Line 8: |
| * Filed crane adapter ring to make it fit better on the hook. * Debugged the BF and SF LVDTs (the signal generator had lost its settings in the rack shutdown). * Debugged the TM-H4 OSEM problem (a "Type 3 extension cable had gone bad). * Weighed eyebolts used to lie the SF. * Shipped the old pico driver and joystick back to Mitaka for Eleonora. * Borrowed a second pico driver ("PR3") and set it and "BS" up in the rack. * Practiced driving the BF cap picos with the new drivers. * (With help from Miyo-kun) got the pico MEDM screens running. * Replace the temporary "PR3" driver with a new one "BS_BF", and renamed "BS" to "BS_IM". * Checked all the DIO connections to the LPCD and connected up the HPCDs. With help from Kokeyama-san we can now see all the drivers from EPICS. * Worked on balancing the BF/IRM/IM... section. Sometime during this work, the IM sank and would not come back to its proper position even with the fishing rod. We put a scale under the RM and found that the imbalance was 488 g. Using the fishing rod we got this down to 235 g, but we found that the direction of the stepper was not consistently related to the direction selected on the driver screen - we had previously noted that "left" was "up, but driving "up" the imbalance would decrease to 235 g and then start increasing again, indicating the stepper had bounced off some obstacle. (There was no obvious sound when this happened, unlike at the low end.) * We decided to give up on tuning the height of the IM with the fishing rod and to proceed with the test hang by locking the BF keystone at the desired height. * Hirata-san installed the PI fishing rod and magic wand, and did more work on changing the PI LVDT connectors from female to male. * Enzo made many edits to the circuit diagram, adding the DIO for the HPCDs and correcting minor mistakes. |
* We brought the SR2 optic into the tunnel and moved it into the good mirror box. The spare mirror was moved into the not-so-good mirror box. * Enzo assembled the SR2 rack and laid all the long cables from the rack into the cleanbooth. (Hayakawa-san can now proceed with the rebuilding of the changing cleanbooth.) * Mark and Shoda-san took data for calibrating and diagonalizing the OL. (Due to the odd angle of the first steering mirror, the beam pattern is rotated by 62° at the QPD.) * Enzo found nearly all in-vacuum cables. * Enzo and Shoda-san got several more loops closed on the BS. * Mark found three geophone pods and two feedthrough adapters for SR2 (now have 3 FAs but need 4). * Mark took out S-numbers for anonymous boxes in the SR2 and put yellow stickers supplied by Tomura-san on them. * Hirata-san worked on SR procurement. * Hirata-san worked with Mirapro to get the SRM LBB installed in the tank. ==== Plan for week of 12/4 ==== * Mark at Kamioka. * Fabian at f2f satellite meeting Mon, then Kamioka. * Enzo at f2f then Mitaka. * Hirata-san at Kamioka Mon-Thu, Mitaka Fri. * Kozu-kun Thu only. * Mirror gluing. * IM assembly and pico test. |
| Line 24: | Line 27: |
| ==== Plan for coming weeks ==== For more detail, see [[KAGRA/Subgroups/VIS/TypeB/ToDo]]. |
==== Plan for week of 12/11 * Mark, Fabian, Enzo, Hirata-san, Shoda-san at Kamioka. * Kozu-kun Mon-Thu only. * Assembly frame alignment and optical table centering. * Move trolley system from SR3. * OL setup. |
| Line 27: | Line 34: |
| Week of 4/17: * Install temporary ballast mass in SF. * Lift SF/BF/... section and check total weight and SF balance. * Continue swap of PI LVDT connectors (female->male) * Start preparing LBB spring units. Week of 4/24: * Crane in PI. * Connect SF/BF... section. * Temporarily remove PI and adjust SF ballast if necessary. |
==== Plan for week of 12/18 ==== * Shoda-san vacation * Mark, Fabian, Enzo, Kozu-kun at Kamioka Mon-Wed. ==== Vacation Info ==== * Mark 12/22-1/3 * Enzo TBD, probably 12/22-1/3 * Fabian 12/22-1/5 * Hirata-san 12/21-22 (conference) * Shoda-san 12/18-21 |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Past week report
- We brought the SR2 optic into the tunnel and moved it into the good mirror box. The spare mirror was moved into the not-so-good mirror box.
- Enzo assembled the SR2 rack and laid all the long cables from the rack into the cleanbooth. (Hayakawa-san can now proceed with the rebuilding of the changing cleanbooth.)
- Mark and Shoda-san took data for calibrating and diagonalizing the OL. (Due to the odd angle of the first steering mirror, the beam pattern is rotated by 62° at the QPD.)
- Enzo found nearly all in-vacuum cables.
- Enzo and Shoda-san got several more loops closed on the BS.
- Mark found three geophone pods and two feedthrough adapters for SR2 (now have 3 FAs but need 4).
- Mark took out S-numbers for anonymous boxes in the SR2 and put yellow stickers supplied by Tomura-san on them.
- Hirata-san worked on SR procurement.
- Hirata-san worked with Mirapro to get the SRM LBB installed in the tank.
Plan for week of 12/4
- Mark at Kamioka.
- Fabian at f2f satellite meeting Mon, then Kamioka.
- Enzo at f2f then Mitaka.
- Hirata-san at Kamioka Mon-Thu, Mitaka Fri.
- Kozu-kun Thu only.
- Mirror gluing.
- IM assembly and pico test.
==== Plan for week of 12/11
- Mark, Fabian, Enzo, Hirata-san, Shoda-san at Kamioka.
- Kozu-kun Mon-Thu only.
- Assembly frame alignment and optical table centering.
- Move trolley system from SR3.
- OL setup.
Plan for week of 12/18
- Shoda-san vacation
- Mark, Fabian, Enzo, Kozu-kun at Kamioka Mon-Wed.
Vacation Info
- Mark 12/22-1/3
- Enzo TBD, probably 12/22-1/3
- Fabian 12/22-1/5
- Hirata-san 12/21-22 (conference)
- Shoda-san 12/18-21