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Size: 2752
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Size: 1857
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| Deletions are marked like this. | Additions are marked like this. |
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| At Kamioka (Mark, Ohishi-san, Enzo, Yoshioka-kun, Kozu-kun): * We removed the LBB damper rings from the tank and passed them to Takahashi-san for recleaning. Unfortunately two screws galled, one holding on a Cu segment, and one holding on a joint piece. * We removed the LBB blade units from the PI, removed the blades and shipped them off for rework. * We pulled out all the old in-air cabling. * We laid about 9 new in-air cables. * We wrapped/labelled the BS mirror box, the winch system, the trolley adapters, and many other tools that we do not expect to use any time soon. * We connected up, tested and calibrated the BF LVDT. * We adjusted the ballast mass on the IM to make it hang level and at the right height. However we had to reduce the weight by a further 686 g relative to the plan of 2017-08-09. We found a combination that was good except for the fact that it used round masses on the bottom corners, so we decided to have the 641 g rectangular masses cut down by 60 g each. Mesco was able to do this within 24 hours. We will reclean the parts on Friday afternoon and swap them in on Monday. At Mitaka (Hirata-san: * Hirata-san got a quotation about optical bench from Mirapro and contacted them about reducing cost. * He asked Suzuki-san (Tokyo university) to order them (delivery date is 10/24, so far). * He modified SR assembly frame design (from Fabian) and asked Mirapro for quotation. * He liaised with Koshin-shoko about modification of BS LBB blade springs. * He asked ATC for making t4.5 ballast mass for PR. He washed them and sent them to Kamioka with the PR thrust bearing. * He worked on the 3D model of SR3 SUS wires, and making a list for quotation. |
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| ==== Plan for week of 8/21 ==== Vacation: Fabian (Mon)<<BR>> Internship: Kozu-kun (Mon-Fri)<<BR>> |
* 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. |
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| Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri). * Swap in new IM ballast masses; readjust height and levelness. * Install side panels of IRM and OSEMs. * Route IRM OSEM cables, test/adjust IRM OSEMs. * Add BF cap; cable and test BF-1 and BF-2 picos. * Lift and weigh BF/IRM/IM/RM/BS; adjust ballast mass. * Crane in SF. * (Time permitting) Try TFs with optical sensors. Mitaka: Hirata-san. * SR stuff. |
==== 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. |
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| ==== Plan for week of 8/28 ==== Kamioka: Mark, Ohishi, Fabian, Enzo, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun. * Suspend BF/IRM/IM/RM/BS. * Install SF cap; route cables. * Lift and weigh SF/BF/IRM/IM/RM/BS. * Adjust SF ballast. |
==== Plan for week of 12/18 ==== * Shoda-san vacation * Mark, Fabian, Enzo, Kozu-kun at Kamioka Mon-Wed. |
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| Fabian: Fri 8/4 through Mon 8/21 Mark: TBD Mid-Oct |
* 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