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Comment:
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1857
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Deletions are marked like this. | Additions are marked like this. |
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At Kamioka (Mark, Fabian, Enzo, Hirata-san): * We disconnected the in-vacuum and in-air cabling from the feedthroughs. * We removed crossbars below BF and SF. * We set the SF damper to 4 mm clearance. * We adjusted the jacks to nominal height. * We removed the geophones and PI yaw stepper for craning. * We craned the suspension into the tank, and hooked the LBB Cu ring. * We replaced the geophones etc. * We unlocked all but the IP and adjusted the jacks until the pendulum was centered in the security structure. * We unlocked the IP and adjusted to to center with the jacks and fishing rods. * We craned the vacuum tank lid+ring back on, and then removed just the lid (only). * We unclamped the LBB damper rings and removed the spacers. * We removed the blocks and shims supporting the LBB, inserted the long screw feet and hooked the LBB to the Cu damper ring. * We added 2*31.5 kg of ballast to the LBB, which got the blades to the point where firm pressure would depress the tips. * We reconnected the in-vacuum cabling. In ≈15 places we opted to omit the Type 1 cable and use a F-F gender bender. * We reconnected all but four of the in-air cables. |
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==== Plan for week of 6/26 ==== Mark and Enzo at Kamioka: * Double-check where gender-benders were used. * Finish connecting in-air cabling. * Debug all cabling. * Work with Simon to set up LSOL. Fabian at Mitaka: * Design final ballast masses for IM, BF and SF assuming no BF rebuild (needs to be adaptable). * Check all items for BS flag/prism gluing are available (prisms, flags, jigs, mirror box, glue, scale, mixing tools etc). Hirata-san at Mitaka: * Do new 3D CAD: * BS Test Hang build, with top of tank, full suspension, and LBB damper all reversed. * Final BS build, as above, but with everything BF down rotated back to original. * In-tank version. * On-assembly-frame version. (Adjust jack positions if possible, or leave for Mark to do.) * SR2 on BS assembly frame. (Adjust jack positions if possible, or leave for Mark to do.) |
* 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 |
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