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Size: 2843
Comment:
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Size: 2620
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, Enzo, Hirata-san, Yoshioka-kun): * We disassembled the suspension. * We removed all the cables and bagged and labelled them for reuse. * The PI is parked on the pallet. * The SF was initially parked between the frame and tank and then manhandled to one side. The same procedure was used for the SF ring. * The BF was parked between the assembly frame and tank. The BF ring was stored in the top of the structure. * We removed various useful and no-longer-needed items from the BF, including the lower rod receptacle, thrust bearing, fishing rod and temporary ballast masses. * We cut the wires and removed the RM and dummy BS on the RM trolley. * The wire clamps were moderately deeply scarred and could probably be reused, but we plan to use the new set, which will be available on Tuesday of next week. * We discovered that the problem with the old BF was due to the fishing rod, which had not had a pair of lock nuts and had been damaged by being drive too high, so that the springs hit the underside of the cap and were bent at the base. We will install lock nuts and set them to the correct height for the final installation. * The gluing of the BS primary prisms and magnets went well, but we had to reglue the secondary prisms because they stuck to the jigs and were pulled off when the jigs were retracted. The second try went well and the BS is ready for use. * Fabian and Hirata-san characterized 7 new BS BF blades. There was one outlier but the rest were in a tight group. * Hirata-san used 3 of the new blades to build a new BF. * Miyo-kun and others from the Type Bp team did a lot of tidying up of the BS rack for us, and removed a lot of in-air cables running through the cleanbooth. When he returns, on 8/8, Enzo will coordinate relaying the cables in the cable trays (which were not installed when the initial cabling was done). |
==== Report for week of 12/25 ==== * Hirata-san got the L-brackets machined and washed, and installed them on the IM ring bars. * Shoda-san recovered the BS from the power outage on 12/25. * Miyakawa-san fixed an issue with the SR2 RTM which had prevented it from running. * Shoda-san, Hirata-san and Kozu-kun weighed the IM without ballast masses, and then added the lower masses and installed the IM on the assembly frame. * They cleaned the assembly frame and installed new jack receptacles on the load gauge adapter. * They installed the winch system on the IM, and inspected the clamp pieces for possible scratches. * They ran cables for the SR2 steppers and OSEMs. * They calibrated the BF LVDT. |
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| ==== Report for week of 1/4 ==== * Mark fixed a number of errors with the Type B screens. |
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| ==== Plan for week of 7/31 ==== Kamioka: Mark (Mon-Fri), Fabian (Mon-Wed), Hirata-san (Tue-Thu), Yoshioka-kun (Tue, Wed, Fri) <<BR>> Mitaka: Hirata-san (Mon, Fri)<<BR>> Enzo: vacation * Recheck alignment of assembly frame and centering of optical table. * Install IM, suspend BS and RM. * Remove LBB rings (time permitting). |
==== Report for week of 1/9 ==== * We weighed the mirror in its box (and later the empty box), and the RM. * Fabian worked on the SR2/SR3/SRM mass budget and did an inventory of spare ballast masses. * We hung the SR2 and RM. * We assembled the bottom section of the security structure below the RM. * We cabled the RM OSEMs up to the IM. * Hirata-san gave up on waiting for a third quote for the blades and blade parts and started the ordering process. * Hirata-san got rod cable clamp parts from Takahashi-san and worked on drawings for the improved BS vertical and yaw adjusters. |
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| ==== Plan for week of 8/7 ==== Site closure: Friday<<BR>> Kamioka: Mark (Mon-Thu), Enzo (Tue-Thu), Yoshioka-kun (Tue, Wed), Ohishi (TBD). Mitaka: Hirata-san (Mon-Fri) Vacation: Enzo (Mon), Fabian (Thu, Fri) * Weigh/trim BS/RM/IM. * Take out old BF; bring in rebuilt BF. * Suspend BS/RM/IM, add IRM. * Lay new in-air OSEM cables. |
==== Plan for week of 1/15 ==== * Fabian at Mitaka Monday 1/15 to inspect filter load test items. * All at Kamioka. * Shoda-san to work on readjusting PR3 and also making OSEMs. * Enzo and Kozu-kun to help with making OSEMs. * Test RM OSEMs. * Check coil driver is successfully driving current. * Time permitting, do TF test from coils to optical sensor. * Suspend IM using load gauge adapter, and check/adjust total mass and balance. |
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| Vacation Info: Enzo: Sat 7/22 through Sun 8/6 Fabian: Fri 8/4 through Mon 8/21 Mark: TBD Mid-Oct |
==== Plan for week of 1/22 ==== * All at Kamioka * Bring in BF and suspend IM. * Route final RM/IM cables up to below BF. * Recheck/adjust total mass and balance. * Route selected cables to flange. * Test IM picos and BF yaw pico. ==== Plan for week of 1/29 ==== * Enzo at Mitaka 1/29 and most of 1/30, then vacation. * Kozu-kun away. * All others at Kamioka. * Build IRM around IM. * Cable/test/adjust IM OSEMs. * Time permitting, do TFs from IM OSEMs to themselves and to optical sensor. ==== Vacation Info ==== * Enzo 1/30-2/19 (at Mitaka 1/29, part of 1/30) * Kozu-kun 1/29-2/2 |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 12/25
- Hirata-san got the L-brackets machined and washed, and installed them on the IM ring bars.
- Shoda-san recovered the BS from the power outage on 12/25.
- Miyakawa-san fixed an issue with the SR2 RTM which had prevented it from running.
- Shoda-san, Hirata-san and Kozu-kun weighed the IM without ballast masses, and then added the lower masses and installed the IM on the assembly frame.
- They cleaned the assembly frame and installed new jack receptacles on the load gauge adapter.
- They installed the winch system on the IM, and inspected the clamp pieces for possible scratches.
- They ran cables for the SR2 steppers and OSEMs.
- They calibrated the BF LVDT.
Report for week of 1/4
- Mark fixed a number of errors with the Type B screens.
Report for week of 1/9
- We weighed the mirror in its box (and later the empty box), and the RM.
- Fabian worked on the SR2/SR3/SRM mass budget and did an inventory of spare ballast masses.
- We hung the SR2 and RM.
- We assembled the bottom section of the security structure below the RM.
- We cabled the RM OSEMs up to the IM.
- Hirata-san gave up on waiting for a third quote for the blades and blade parts and started the ordering process.
- Hirata-san got rod cable clamp parts from Takahashi-san and worked on drawings for the improved BS vertical and yaw adjusters.
Plan for week of 1/15
- Fabian at Mitaka Monday 1/15 to inspect filter load test items.
- All at Kamioka.
- Shoda-san to work on readjusting PR3 and also making OSEMs.
- Enzo and Kozu-kun to help with making OSEMs.
- Test RM OSEMs.
- Check coil driver is successfully driving current.
- Time permitting, do TF test from coils to optical sensor.
- Suspend IM using load gauge adapter, and check/adjust total mass and balance.
Plan for week of 1/22
- All at Kamioka
- Bring in BF and suspend IM.
- Route final RM/IM cables up to below BF.
- Recheck/adjust total mass and balance.
- Route selected cables to flange.
- Test IM picos and BF yaw pico.
Plan for week of 1/29
- Enzo at Mitaka 1/29 and most of 1/30, then vacation.
- Kozu-kun away.
- All others at Kamioka.
- Build IRM around IM.
- Cable/test/adjust IM OSEMs.
- Time permitting, do TFs from IM OSEMs to themselves and to optical sensor.
Vacation Info
- Enzo 1/30-2/19 (at Mitaka 1/29, part of 1/30)
- Kozu-kun 1/29-2/2