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* Type B Past Week Summary * Fabian finished dummy BS assembly. * Mark and Tatsumi-san glued magnets into both types of BS optic flags, and discs into BS IM flags. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1815 |klog]] Two optic flags had to be redone because the magnets moved while the glue was drying. Hirata-san helped remove the magnets with acetone in the ultrasonic cleaner. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1818|klog]] * Tatsumi-san, Fabian and Mark took the dummy BS to Kashiwa and glued the flags and prisms. We will check status on Mon 6/13. * Hirata-san measured another filter. * Hirata-san washed a batch of parts. * Hirata-san worked on work platforms for the installation. * Hirata-san looked for a crane scale for use at the site. (We decided the 500 kg version of the one used at TAMA.) * Hirata-san worked on making some guide parts for the PI installation (Misumi parts with minor additional machining from ATC). * We finalized a design for simple SS mirror parts for the dummy BS with Akutsu-san. They will be made by ATC. * Mark worked on list of items for purchase in FY2016 and on the schedule. * Fabian did more work on the IM assembly. It is nearly done and he will start on the RM next week. * Type B ongoing issues * Can we make SR wire breakers bigger? * Fukushima-san will start on machining test soon (as of 5/27). * Not enough crane height problem (Hirata, Saito) - no action since last week * Ballast masses for payload * Initial batch received - ordered extra smaller ones to allow for adjustments. * Lower breadboard stuff * '''Need to be incorporated into the procedure document. Discuss with Takahashi (Mark)''' * Breadboard springs (in manufacture, expected end of July) * Nail-head parts: quote from Mirapro received, not urgent, will be combined with assembly frame order. * Clean bag - expected 6/8. * Documents * BS Assembly Procedure [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]] |
=== Type B (Mark) === ==== Report for week of 6/11 ==== * Enzo redid the SR3 BIO connections to match the now-working BS setup. He also fixed PR2, which had a similar problem. * Enzo replaced LPCDs with HPCDs in the SR3. * Hirata-san installed the cable clamps and Cu segments on the SF cap. * Hirata-san and Kozu-kun continued tuning the filter in PI #3. Unfortunately it seems to be rather weaker than expected, and we have not found a compression setting that gives a good frequency. We may have to use tricks like reducing the number of Cu segments on the SF (or using Al ones) to save weight. * Mark, Enzo and Terrence suspended the BF/... section from the SF, and got it aligned for TFs. ==== Plan for week of 6/18 ==== * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri. * -- * Receive second and third sets of LBB damper rings. * Take TFs. * Cable, test SF LVDT and FR. * Add calculated ballast to SF. * Finish tuning F0 #3 for SR3. * Park F0 #1 (for SR2) in top of SR3 assembly frame. * Move F0 #3 behind SR3. * Move F0 #1 to "factory" area (in front of SRM) and start rebuild. * Install PI. * Suspend SF/... section. * Lots of cabling. ==== Plan for week of 6/25 ==== * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri. ==== 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 Info ==== * Enzo: 9/14 JPS, 9/15 through 10/18 vacation in Chile * Terrence: 8/24-26 f2f, then returns to Hong Kong. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 6/11
- Enzo redid the SR3 BIO connections to match the now-working BS setup. He also fixed PR2, which had a similar problem.
- Enzo replaced LPCDs with HPCDs in the SR3.
- Hirata-san installed the cable clamps and Cu segments on the SF cap.
- Hirata-san and Kozu-kun continued tuning the filter in PI #3. Unfortunately it seems to be rather weaker than expected, and we have not found a compression setting that gives a good frequency. We may have to use tricks like reducing the number of Cu segments on the SF (or using Al ones) to save weight.
- Mark, Enzo and Terrence suspended the BF/... section from the SF, and got it aligned for TFs.
Plan for week of 6/18
- Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
- --
- Receive second and third sets of LBB damper rings.
- Take TFs.
- Cable, test SF LVDT and FR.
- Add calculated ballast to SF.
- Finish tuning F0 #3 for SR3.
- Park F0 #1 (for SR2) in top of SR3 assembly frame.
- Move F0 #3 behind SR3.
- Move F0 #1 to "factory" area (in front of SRM) and start rebuild.
- Install PI.
- Suspend SF/... section.
- Lots of cabling.
Plan for week of 6/25
- Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
To-Do Lists, Schedule
Vacation Info
- Enzo: 9/14 JPS, 9/15 through 10/18 vacation in Chile
- Terrence: 8/24-26 f2f, then returns to Hong Kong.