= Agenda/Minutes of the VIS Meeting on 2017/9/1 = 2017/9/1 13:30 - 15:30 Participants: Mark, Shoda, Ishizaki, Arai, Hirata, Okutomi, Takahashi, Aso, Kozu, Tanaka, Ohishi, Akutsu, Sato == Progress report == Schedule Chart : ([[https://www.dropbox.com/s/035etsa8bbfzth2/VIS%20Overall%20Schedule-20170620.pdf?dl=0|PDF]],[[https://www.dropbox.com/s/v9cqbycq6vgggng/VIS%20Overall%20Schedule-20170620.mpp?dl=0|MPP]]) * Type-A: 1 week delay (?) because of the filter tuning problem * Type-B: 1.5 week delay. Currently the finish date will be Sept. 29. Parallelize some works to recover the schedule delay. * Type-Bp: On schedule === Type-A (Takahashi) === ==== Past week report ==== [X-end] 30th(Wed) * Adjust the height of keystone in the F2 and F3 by the FR. * Lifted down the EQ stop. The F2 stage sit on the frame lock. 31st(Thu) * Extended the EQ stop to the F1 stage. * Assembled some items inside the F1; cabling, replacement of receptacles, replacement of FR blades. * Attached the Cu ring and the wire clamps onto the cap of F1. * Closed the cap of F1. Though the insertion was very tight, the cap could be closed. [Y-end] 31st(Thu) * Making the control model with the CRY group. 1st(Fri) * Trasported the bridge frame to the X-end. * Making the control model with the CRY group. ==== Plan for coming weeks ==== * Installation of the Filter1 in X-end. === Type B (Mark) === ==== Past week report ==== At Kamioka (Mark, Ohishi-san, Fabian, Enzo, Hirata-san, Yoshioka-kun, Kozu-kun): * We solved the problem with the OSEMs: cables had been plugged into the confusingly named "PD current monitor" outputs (actually LED current monitors), not the "OSEM outputs". * We solved a problem with the real-time model freezing which turned out to be the IO chassis having lost power. * We took some mass off the IM to allow for the weight of the cables, and readjusted it in pitch and roll. * We aligned the IRM to the IM and set the OSEMs to mid-range. * We added ballast to the BF. * We changed the receptacles for the SF-BF rod. The low receptacle did not fit properly into the BF keystone and Hirata-san had to file it. * We fixed a broken wire on the BF yaw pico, retested the pico and added the BF cap. * We cabled and tested the BF cap picos. * We lifted the BF and weighed and balanced it. * We installed the SF ring and brought in the SF. * We installed the Cu segments on the SF. * We cabled the SF LVDT and did a quick test (not a full calibration). * We replaced non-vacuum compatible cables in the PI, removed various sticky labels and wiped it with ethanol. * We tried to hook the SF-BF rod but found the hole in the hex cable clamp was too small for the 8 mm rod head. We enlarged the hole but then found the PEEK pieces were too loose. We tried using foil, but then managed to lose a PEEK piece into the BF, so we will need to remove the cap of the BF to get it. ==== 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 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. === Type-Bp (Shoda) === ==== Past week report ==== * IM OSEMs tuned. * We tuned the OSEM DC position again, since we changed the IRM alignment last Friday. * We checked the TFs of IM. So far, the TF seems to be OK but the coherence is not good at lower frequencies. I should check later. * BF assembled * BF cap was closed, and assembled BF LVDT primary coils. The IM/TM cables are lead to the top of the BF cap. * Top plate assembled * We also assembled the top plate/Traverser unit to the suspension. * k1pr0 IO chassis * Miyakawa-san changed the power supply for the IO chassis. Now the IO chassis seems to be working. * All 3 models cannot be started at the same time when we start the RT computer. It is necessary to start the model one by one. * However, the PRM model is not yet running properly, since all the VIS model cannot be compiled because of an unknown error. One of the Library model might be the reason. ==== Plan for coming weeks ==== * assemble SF & calibrate SF LVDT * Hang BF and tune the weight * Assemble the BFRM === IMMT (Ohishi) === ==== Past week report ==== ==== Plan for coming weeks ==== === Watchdog system (Tanaka) === ==== Past week report ==== *I examined specific cost and necessary measures to set up for WDS in Kamioka.And I held a meeting to make estimates with several vendors.-->Budget plan.(But the accuracy is low because there is no data necessary for integrating the estimate.)However,this is a Japanese report.[[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0071/E1707142/001/Project%20WDS%20budget%20plan%20170901.pdf | JGW-E1707142(PDF)]]. -->Waiting for an estimate. ==== Plan for coming weeks ==== *Creation of extended I/O PCB(plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Ongoing. *Start production of equipment-->PCB check for main board(WDS main board).Ongoing. === Other site works === * End of Aug. to Nov.: Mozumi entrance will be closed * Sept. 5: Inspection by Labor Standards Inspection Office === Safety === * Incidents: no * Foreseen risks * Type-A: Crane work * Type-B: Crane work * Type-Bp: Crane work == Discussion == === Type-A === * There are not enough cables to complete ETMX Type-A * We need 170 m of vacuum compatible cables * We will use non-vacuum compatible cables for the moment (until Okutomi-kun's test) * Before connecting to the CRY payload, we will swap the non-vac cables to vacuum compatible ones. * Production of the vac-compat cables is an imminent issue. * Bulk cable (線材) is now under bidding (for 900m, delivery deadline: the end of Nov.). * We will contact companies to explore the possibility of having 200m cable before the middle of Oct. === Type-B === * Cu plate needs to be cleaned. * Ishizaki-san will bring them back to Mitaka today. * Ask Koushin to clean them in the next week. === Type-Bp === * Manpower shortage in the next week * Discuss with Type-B every morning to share the man power. == Travel Plans == * Travel (Week of 9/4): * Takahashi: 4-7 * Okutomi: 4-8 * Sato: 4-8 * Ishizaki: 4-8 * Mark: 4-8 * Fabian: 4-8 * Hirata: 4-8 * Enzo: 5-8 * Shoda: 4-8 * Ohishi: 4-8 * Fujii: * Tanaka: * Yoshioka (Toyama): * Kozu (ICRR): 7-8 * Arai (ICRR): 4-8 * Travel (Week of 9/11): * Takahashi: 11-12 (13 JPS) * Okutomi: 11-15 * Sato: 11-15 * Ishizaki: * Mark: 11-15 (13) * Fabian: 14-15 * Hirata: 11-15 * Enzo: 11-15 * Shoda: 11-15 (13) * Ohishi: 14-15 * Fujii: * Tanaka: * Yoshioka (Toyama): * Kozu (ICRR): 11-15 * Arai (ICRR): 11-15 == Next meeting == On 2017/9/8(Fri)