Size: 1973
Comment:
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Size: 1829
Comment:
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Deletions are marked like this. | Additions are marked like this. |
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==== Past week report ==== At Kamioka (Mark, Ohishi-san, Fabian, Enzo, Hirata-san, Yoshioka-kun, Kozu-kun): * We craned out the SF temporarily and retrieved the lost PEEK cable clamp collet from the BF. * We installed the BF. * We routed cables from the BF via the hex cable clamp to the SF level. * We adjusted the BF trim mass for pitch, roll and vertical, and got the IRM hanging symmetrically around the IM. * We adjusted all the IRM OSEMs laterally and in/out. * We calibrated the SF LVDT and tested the SF FR stepper. * We suspended the SF/... section and weighed it but found the old 7-mm maraging rod adapter did not hold it at the center, so we chad to lift it with slings and could not accurately trim it for pitch/roll. * We craned in the PI with the SF damper ring hanging from it. * We suspended the SF successfully from the PI and unlocked the F0 keystone to check the mass budget. We needed about 1.5 kg extra, which is about right. * However we had to leave out the F0-SF hex cable clamp because of a bad thread on the inside of the cap. Hirata-san will make a new cap by enlarging the 7-mm hole in an old cap to 8 mm. |
==== Report for week of 1/29 ==== * Mark made two sets of in-air pico splitter cables (each with a triple for IM and a double for BF) for SR2 and SR3. * Fabian, Hirata-san and Kozu-kun worked on cabling and testing the IM pitch/roll/yaw picos, the BF FR and the BF LVDT. The LVDT connections were initially unreliable and Hirata-san had to redo the pins on the coil wires. * Fabian installed ballast masses in the BF. * Mark worked on schedule. * Mark did inventory of the stepper motor drivers (many were not accounted for on the wiki and/or JGWDoc and one is missing) and reserved two for SR3. * We emptied out the external cleanroom in preparation for installing SS sheet. |
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==== Plan for week of 9/4 ==== Mark, Fabian, Enzo (Tue-Fri), Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun (Thu, Fri) * Retrieve PEEK piece from BF. * Crane SF back in. * Suspend BF/IRM/IM/RM/BS. * Test SF FR. * Calibrate SF LVDT. * Install SF cap; route cables. * Lift and weigh SF/BF/IRM/IM/RM/BS. * Adjust SF ballast. |
==== Plan for week of 2/13 ==== * No work Monday (建国記念の日の振替休日) * Enzo on vacation * Hirata-san at Mitaka Tue (self-evaluation interview). * Shoda-san at Mitaka. * All others at Kamioka. * - * Build IRM around IM. * Cable/test/adjust IM OSEMs. * Do TFs from IM OSEMs to IM OSEMs, OL pitch/yaw. |
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==== Plan for week of 9/13 ==== Mark (except Wed), Fabian (except ASJ), Enzo, Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun * Prepare magnet ring. * Bring in PI. * Route cables. * Suspend SF/..., adjust tilt of SF and total mass. * Adjust damper gap. |
==== Plan for week of 2/19 ==== * Enzo back from Tuesday. * Shoda-san at Mitaka. * Hirata-san at Mitaka Mon+Tue (to receive and wash parts). * All others at Kamioka. * - * Lift BF/... section and check total mass and balance. * Cable and test BF picos. * Add section of SS up to SF ring. * Bring in SF. * Hook BF/... section. * Route cables up to under SF. * Check/adjust total mass of BF/... section. ==== Plan for week of 2/26 ==== * Shoda-san at Mitaka. * - * Add Cu segments to SF cap. * Lift SF/... section and check total mass and balance. |
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Mark: 10/16-24 | * Enzo 1/30-2/19. * Fabian 4/2-4/27 vacation (then gone). |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 1/29
- Mark made two sets of in-air pico splitter cables (each with a triple for IM and a double for BF) for SR2 and SR3.
- Fabian, Hirata-san and Kozu-kun worked on cabling and testing the IM pitch/roll/yaw picos, the BF FR and the BF LVDT. The LVDT connections were initially unreliable and Hirata-san had to redo the pins on the coil wires.
- Fabian installed ballast masses in the BF.
- Mark worked on schedule.
- Mark did inventory of the stepper motor drivers (many were not accounted for on the wiki and/or JGWDoc and one is missing) and reserved two for SR3.
- We emptied out the external cleanroom in preparation for installing SS sheet.
Plan for week of 2/13
- No work Monday (建国記念の日の振替休日)
- Enzo on vacation
- Hirata-san at Mitaka Tue (self-evaluation interview).
- Shoda-san at Mitaka.
- All others at Kamioka.
- -
- Build IRM around IM.
- Cable/test/adjust IM OSEMs.
- Do TFs from IM OSEMs to IM OSEMs, OL pitch/yaw.
Plan for week of 2/19
- Enzo back from Tuesday.
- Shoda-san at Mitaka.
- Hirata-san at Mitaka Mon+Tue (to receive and wash parts).
- All others at Kamioka.
- -
- Lift BF/... section and check total mass and balance.
- Cable and test BF picos.
- Add section of SS up to SF ring.
- Bring in SF.
- Hook BF/... section.
- Route cables up to under SF.
- Check/adjust total mass of BF/... section.
Plan for week of 2/26
- Shoda-san at Mitaka.
- -
- Add Cu segments to SF cap.
- Lift SF/... section and check total mass and balance.
Vacation Info
- Enzo 1/30-2/19.
- Fabian 4/2-4/27 vacation (then gone).