Agenda/Minutes of the VIS Meeting on 2017/10/20
2017/10/20 13:30 - 14:10
Participants: Fabian, Arai, Ohishi, Aso, Shoda, Takahashi, Simon, Ishizaki, Tanaka
Progress report
Schedule Chart
- Type-A: Close the chamber in the early next week.
- Type-B: SR3 or SR2 installation to be started in Dec.
- Type-Bp: Finished
Type-A (Takahashi)
Past week report
[X-end]
16th(Mon)
- Finished the setting of ACCs with the drivers.
17th(Tue)
- Mounted the ACCs on the IP.
- Started the tuning of IP. The behavior of IP was strange.
18th(Wed)
- Changed the anchor position of EQ stop.
- Changed the cabling around the IP.
- Tuned the IP again. The resonant frequency was set to 60mHz.
19th(Thu)
- Adjusted the height of keystone for the F1 and the F2 using the FRs.
- Set the evacuation port with the dry pump.
- Fastened the feedthrough flanges.
- Assembled the BF damper.
- Cabled for the BF damper.
20th(Fri)
- Finished cabling for the BF damper.
Plan for coming weeks
- Check the BF damper.
- Close the chamber.
Type B (Mark)
Past week report
[Enzo, Hirata, Kozu, Fabian]
1. We fixed broken cables in the IP LVDTs.
2. We lowered the lower breadboard (LBB) by 17.5 mm and removed the T500 Koach filters. A new measurement of its position is pending.
3. We removed from the top filter table the three bars of the triangular crane adapter.
4. We were not able to use remotely the vertical fishing rod of the Top Filter. The mechanical design has to be reviewed.
5. In the top filter keystone we put a safety cap which keeps the suspension rod nail head from accidentally unhooking.
6. We got rid of a fifth flange in the BS chamber by re-routing one in-vacuum cable.
7. We added in-air cable extensions in order to have all GAS fishing rods (FR) connected to one stepper motor driver and the three IP horizontal FRs to a separate one. This makes using the current Miyo-kun’s python script easy. The new cable assignment has been reported in the Klog.
8. The horizontal coil-magnet actuators don’t seem to be working before applying 25,000 counts. We’re in the process of investigating this.
9. Enzo worked in the implementation of the control filters for the IM and IP
10. We investigated the coupling from IP horizontal FR YAW actuation into longitudinal degrees of freedom.
SR work: Hirata-san worked with Mirapro in the installation of the SR LBBs. He also began doing inventory of SR components.
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- Adjust the tilt of PR3 and PR2 for beam alignment
- PR2 seems to be OK. In the end, PR2 tilt seems to be at around the designed position.
- PR3 IM OSEMs are very close to touch at the flags. We have not checked the PR3 tilt yet.
- So far, we do not have time to check the transfer functions because the comissioners need the beam. But we have to check at some point.
- PR2 and PR2 oplevs are calibrated.
Now the beam is delivered to the X-end
Plan for coming weeks
- Keep aligned
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
I held a meeting to make estimates with several vendors.-->I also requested a new vendor to make a quote(Waiting).
Waiting for concrete information on installation location.-->
Update installation plan(Placement plan for installing WDS in KAGRAJGW-E1707265(PDF)).
Request for fabrication of JGW-D1605239(Binary IO Converter Chassis) for use with WDS(JGW-T1707285(docx)).
Creation of extended I/O PCB plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Machining is completed.
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).-->Start of wiring and testing for EX I/O box(19 inch chassis).
Execution of the final version operation test for mass production ->Detailed exam(Ongoing).
Other site works
- VIP visit from MEXT: Oct. 24th 16:30 - 17:35
- Annual inspection of the cranes in the center: Oct. 27 (Fri) afternoon.
- Fire drill: Nov. 16 from 11AM - 12AM
- Commissioning Workshop: Nov. 27 to Dec. 1st
End of Aug. to Nov.: Mozumi entrance will be closed -> Finished
Safety
- Incidents: no incident
- Foreseen risks
- Type-A: Crane work
- Type-B: Crane work, lazer hazard
- Type-Bp: no work
Discussion
Plan for the coming months
Travel Plans
- Travel (Week of 10/23):
- Takahashi: Mitaka (BF assembly)
- Okutomi: 23 - 27
- Sato: Mitaka (ACC check)
- Ishizaki: 23 - 27
- Mark: 25 - 27
- Fabian: 23 - 26
- Hirata: 23 - 27
- Enzo: 23 - 26
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR): 23 - 27
- Travel (Week of 10/30):
- Takahashi:
- Okutomi: 10/30 - 11/3
- Sato:
- Ishizaki:
- Mark:
- Fabian:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
Next meeting
On 2017/10/27(Fri)