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Size: 1534
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Size: 1396
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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: |
| * Craned in the PI. * Assembled the thrust bearing holder that receives the PI-SF rod. (It originally had a burr that prevented the bearing from seating properly, and so required filing and re-cleaning.) * Hooked the SF and lowered the jacks under the SF to suspend the SF/... section. * The top filter rose when unlocked, and required about 1.8 kg to send it back down. Therefore we may be OK - the top filter seems to have about 8 kg more capacity than as measured by G&M. The hex cable clamp (≈0.25 kg) and the cables between the PI and SF still have to be added, but we can get an extra 3 kg by removing one of the three Cu damper segments (and rearranging the other two). * Built and installed three LBB blade units. * Kept debugging the SF LVDT. We repaired several broken wires, but it's still not behaving correctly. |
* Mark worked on SR2 planning. * Mark thought through what would be required to swap an optic (e.g., SRM) in situ (JGW-T1707436). * Hirata-san tried removing disks from IM flags (so we could reuse them in flag bases and make a complete set for SR2) but only got 1 of 4 out. * Hirata-san ordered more disks for IM flags. * Hirata-san asked for quotes on SF LBB blades. * Hirata-san got a reduced quote for the LBB damper rings. * Hirata-san received and cleaned suspension wires for the SR. * Fabian worked on the SR mass budget. * Fabian worked out the COM of the SR2 optic, and Mark used it to derive the proper prism positions. * Enzo and Kozu-kun worked on control filter design and installation. |
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| ==== Plan for coming weeks ==== For more detail, see [[KAGRA/Subgroups/VIS/TypeB/ToDo]]. |
==== Plan for week of 11/27 ==== * Fabian at commissioning workshop * Hirata-san at Kamioka Tue-Fri to work with Mirapro on SRM LBB installation. * All others (Mark, Enzo, Shoda-san, Kozu-kun) at Kamioka to start SR2 assembly. * Mark from Mon lunchtime. * Kozu-kun from Mon lunchtime through Wed. * Mirror gluing. * SR2 rack setup. |
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| Week of 5/1: * No activity (Golden Week). Week of 5/8: * Work from Tuesday. * Remove PI temporarily. * Add magnets to upper SF damper ring. * Reinstall PI with damper ring. * Reinstall PI-SF rod, this time with hex cable clamp. * Install PI yaw stepper. * Wire up PI yaw and vertical steppers. * Route cables from SF to PI (may involve removing part of Cu damper). |
==== Plan for week of 12/4 ==== * All at Kamioka * IM assembly and pico test. * Assembly frame alignment and optical table centering. * OL setup. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Past week report
- Mark worked on SR2 planning.
- Mark thought through what would be required to swap an optic (e.g., SRM) in situ (JGW-T1707436).
- Hirata-san tried removing disks from IM flags (so we could reuse them in flag bases and make a complete set for SR2) but only got 1 of 4 out.
- Hirata-san ordered more disks for IM flags.
- Hirata-san asked for quotes on SF LBB blades.
- Hirata-san got a reduced quote for the LBB damper rings.
- Hirata-san received and cleaned suspension wires for the SR.
- Fabian worked on the SR mass budget.
- Fabian worked out the COM of the SR2 optic, and Mark used it to derive the proper prism positions.
- Enzo and Kozu-kun worked on control filter design and installation.
Plan for week of 11/27
- Fabian at commissioning workshop
- Hirata-san at Kamioka Tue-Fri to work with Mirapro on SRM LBB installation.
- All others (Mark, Enzo, Shoda-san, Kozu-kun) at Kamioka to start SR2 assembly.
- Mark from Mon lunchtime.
- Kozu-kun from Mon lunchtime through Wed.
- Mirror gluing.
- SR2 rack setup.
Plan for week of 12/4
- All at Kamioka
- IM assembly and pico test.
- Assembly frame alignment and optical table centering.
- OL setup.