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| * Type B Past Week Summary * Fabian did inventory of parts/fasteners for dummy BS, RM, IM and IRM - almost all at Mitaka. A handful (picos, pico drivers) will be brought back from Kamioka. * Fabian continued work on Mathematica and Matlab models of the BS and control system. He now gets much better agreement after correcting discrepancies between the parameter sets. * Hirata-san worked on organizing: * Checking Mirapro assembly frame drawings * Ordering missing screws and small items (screws for dummy mass, fine pitch M8 for RM) * Work platforms and clean booth second floor arrangement. * Load gauge adapter and associated parts * Possible fall-back plans for the rods connecting the security structure to the PI. * Design for additional trim masses (existing design had no provision for adding/removing). |
=== Type B (Mark) === ==== Report for week of 10/8 ==== * This was Panwei's last week (for now at least) - thanks for all the help! * Thanks also to Terrence for visiting again for the week. ===== SR3 ===== * Terrence and Mark finished setting up the LEN half of the OL (Simon had roughly placed the components). They ran a new cable for LEN in the cable tray and relaid the cable for TILT to get it off the floor. * Terrence worked on diagonalizing the LEN OL. A report is forthcoming. ===== SRM ===== * Mark installed a pair of power supplies in the SRM and copied settings across to the SRM real-time model. * Fabian did lots of rack cabling, including installing and connecting BIO cards. * Mark and Hirata-san checked and adjusted the pitch of the BF (with a bubble level) and the IM/... section (with the OL. * Mark and Panwei installed the sides of the IRM and the IM OSEMs. * Hirata-san hung the dummy load from the F0 and started compressing the blade. There was a significant lateral offset (≈2-3 mm towards the blade at 5:30) at first but Takahashi-san advised that it would probably improve with compression, and it did. * Mark and Hirata-san cleared off most of two optical tables and a set of shelves in the OMMT area that Type B had been using but were now required by Somiya-san and Ohishi-san. We still need to remove the geophone and OSEM testing setups. ===== SR2 ===== * Mark, Enzo and Hirata-san all inspected the lower section of the SR2 to see if there were any interference points that might explain some unexpected peaks in the TFs that weren't present before installation. There were no stops touching, but some TM OSEM cables were rubbing against each other. [??? Did the fix work?] * We removed the tank lid, and Enzo and Panwei inspected the cabling that had been done during Enzo's vacation and installed some new cables that had arrived. They also unlocked the IP. ==== Plan for week of 10/15 ==== * Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Fri. ===== SR2===== * Continue shakedown. ===== SRM ===== * Align IRM with IM. * Suspend/weigh/balance the BF/... section. * Build up the AF and SS to the SF level. * Install the SF. ==== To-Do Lists, Schedule ==== * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]] * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779 Type B Schedule (SR)]] ==== Vacation/Visitor Info ==== * Terrence: 10/29-11/2 at Kamioka. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 10/8
- This was Panwei's last week (for now at least) - thanks for all the help!
- Thanks also to Terrence for visiting again for the week.
SR3
- Terrence and Mark finished setting up the LEN half of the OL (Simon had roughly placed the components). They ran a new cable for LEN in the cable tray and relaid the cable for TILT to get it off the floor.
- Terrence worked on diagonalizing the LEN OL. A report is forthcoming.
SRM
- Mark installed a pair of power supplies in the SRM and copied settings across to the SRM real-time model.
- Fabian did lots of rack cabling, including installing and connecting BIO cards.
- Mark and Hirata-san checked and adjusted the pitch of the BF (with a bubble level) and the IM/... section (with the OL.
- Mark and Panwei installed the sides of the IRM and the IM OSEMs.
- Hirata-san hung the dummy load from the F0 and started compressing the blade. There was a significant lateral offset (≈2-3 mm towards the blade at 5:30) at first but Takahashi-san advised that it would probably improve with compression, and it did.
- Mark and Hirata-san cleared off most of two optical tables and a set of shelves in the OMMT area that Type B had been using but were now required by Somiya-san and Ohishi-san. We still need to remove the geophone and OSEM testing setups.
SR2
- Mark, Enzo and Hirata-san all inspected the lower section of the SR2 to see if there were any interference points that might explain some unexpected peaks in the TFs that weren't present before installation. There were no stops touching, but some TM OSEM cables were rubbing against each other. [??? Did the fix work?]
- We removed the tank lid, and Enzo and Panwei inspected the cabling that had been done during Enzo's vacation and installed some new cables that had arrived. They also unlocked the IP.
Plan for week of 10/15
- Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Fri.
===== SR2=====
- Continue shakedown.
SRM
- Align IRM with IM.
- Suspend/weigh/balance the BF/... section.
- Build up the AF and SS to the SF level.
- Install the SF.
To-Do Lists, Schedule
Vacation/Visitor Info
- Terrence: 10/29-11/2 at Kamioka.