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Size: 3034
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Size: 1445
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| Deletions are marked like this. | Additions are marked like this. |
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| * Enzo tested the LVDT driver repaired by Tanaka-san - it was fine. * Fujii-kun and Enzo finished assembling a batch of 4 geophones and took test data. * Hirata-san modified some Promec masses (drilling out the threads on 2 of 4 holes) so we could use two layers of them inside the BF. * Hirata-san installed maraging rod receptacles in the LBB damper rings, and in the bottom of PIs #3 and #1 (for the SF damper rings). * After consulting with various people, Hirata-san installed the second half of the LBB top ring in the chamber, simply omitting the pillar and screw associated with the badly threaded hole. * Hirata-san took delivery of the screws for the LBB blade units, made up 9 blade units and installed 6 of them on PI #3 and #1 (for SR3 and SR2). * Hirata-san made up a set of PI cable clamps and installed them on PI #3 (for SR3). * Hirata-san removed the prototype blades from PI #3 to get ready for testing the final blades. * We located the #355 disk and #356 poles for the next level of the security structure up to the SF and installed the poles. * We installed ballast mass in the BF. After some trial and error we settled on 16 Promec masses (7.1 kg) inside the BF and 5 D1808104-4 and 3 D1808104-5 masses (540 g) on the cap. * Enzo and Fujii-kun did several rounds of TFs on the BF/... section of the suspension and debugged a problem with dewhitening filters not being installed in the OSEMINF filter bank. * Enzo installed damping filters for the IM OSEMs. |
* 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 and Kozu-kun continued tuning the filter in PI #3. Un |
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| ==== Plan for week of 5/28 ==== * Mark, Enzo at Kamioka Mon-Fri. * Hirata-san at Kamioka Tue-Fri. (Mon is monthly Mitaka day.) * Matteo at Kamioka from Tue. He may help Type B to get experience. * Kozu-kun at Kamioka Mon only. (Rest of week is job interviews.) |
==== Plan for week of 6/11 ==== * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Tue-Fri (Mon is compensation day for f2f.) |
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==== Plan for week of 6/4 ==== * Mark, Enzo, Hirata-san, Kozu-kun at Kamioka Tue-Fri. (Mon is NAOJ medical checkup.) * -- * Cable and test BF cap picos. * Build up security structure to SF level. * Crane in SF and remove cap. * Hook BF and adjust total ballast. |
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| * Add minimal ballast mass to SF (rough balance only) and weigh SF/... section. | |
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| * Add budgeted ballast mass to SF and weigh SF/... section. | |
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| * Characterize final F0 blades. ==== Plan for week of 6/11 ==== * Mark Enzo, Hirata-san, Kozu-kun at Kamioka Tue-Fri (Mon is compensation day for f2f.) * -- * Rebuild F0 #3 for SR3. |
* Add calculated ballast to SF. * Finish tuning F0 #3 for SR3. |
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| * Make LBB blade sets (or at least 3 of 9). | * Move F0 #1 to "factory" area (in front of SRM) and start rebuild. ==== Plan for week of 6/18 ==== * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri. * -- * Install PI. * Suspend SF/... section. * Lots of cabling. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 5/28
- 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 and Kozu-kun continued tuning the filter in PI #3. Un
Plan for week of 6/11
- Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Tue-Fri (Mon is compensation day for f2f.)
- --
- Route cables through SF-BF flying saucer up to bottom of SF.
- Add minimal ballast mass to SF (rough balance only) and weigh SF/... section.
- Adjust BF trim mass.
- Readjust payload.
- 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.
Plan for week of 6/18
- Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
- --
- Install PI.
- Suspend SF/... section.
- Lots of cabling.
To-Do Lists, Schedule