Agenda/Minutes of the VIS Meeting on 2017/10/27
2017/10/27 13:30 - 15:00
Participants: Okutomi, Ishizaki, Aso, Mark, Sato, Hirata, Simon, Enzo, Fabian, Ohishi, Shoda, Tanaka
Progress report
Schedule Chart
- Type-A:
- Type-B:
- Type-Bp:
Type-A (Takahashi)
Past week report
[X-end]
- Recovered the black out.
- Checked signals for the BF damper.
- Set the remote operation of the stepping motors.
- Closed the top chamber.
- Closed the cross tube.
- Set the remote monitor of the vacuum gauge.
[Mitaka]
- Assembled the BFs. One BF was completed. The other was assembled by a half.
- Checked the ACCs. Two of six units have a problem.
Plan for coming weeks
- Start evacuation in X-end.
- Finish the assembly of BFs.
- Service the ACCs.
[Plan in November]
- 11/6-10 X-end: Disassembly of the EQ stop and the cabling.
- 11/13-17 Transportation of the items from Akeno and Mitaka to the 2F in KAGRA.
- 11/20-12/1 X-end: Reassembly of the EQ stop and the cabling.
Type B (Mark)
Past week report
At Kamioka (Mark, Fabian, Enzo, Hirata-san):
- Hirata-san did an inventory of SR and other parts at Kamioka.
- Mark and Enzo finalized the geometry matrices for the IP, entered them in MEDM and updated the safe.snap.
- Mark, Enzo and Fabian worked with Izumi-san et al. to align the BS. We got the +Y beam fairly close to aligned (to the second gate valve, near IY).
Plan for week of 10/30
Kamioka: Mark and Enzo
- Continue alignment of BS.
- Realign OL.
- Work on servos.
Mitaka: Fabian and Hirata-san
- SR procurement.
- New PI GAS FR design.
- BS LBB ballast mass design.
- SR cable lamp design.
Type-Bp (Shoda)
Past week report
- We had a big problem on k1pr0 after the blackout.
- PR2 recovered smoothly.
- Now PR3 is recovered after several problems.
- TFs are checked. The suspension status looks good.
- Problems to be solved:
- large noise in PR2 OSEMs.
- TF gain decrease by 30dB (Pr3 BF GAS)
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Creation of extended I/O PCB plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->
- Wiring and Testing for EX I/O box(19 inch chassis) were completed.
- Connection test with WDS and digital I/O card's emulation tool.
I held a meeting to make estimates with several vendors.-->
- I got an estimate from the vendor(Denseisirius).
- About 5.3 million yen.
Request for fabrication of JGW-D1605239(Binary IO Converter Chassis) for use with WDS(JGW-T1707285(docx)).-->Wait for results.
Plan for coming weeks
Execution of the final version operation test for mass production ->Detailed exam(Ongoing).
- I want to start ordering mass production version.
I'd like to conduct the final exam in KAGRA.-->On the experiment plan at the KAGRA site of the WDS systemJGW-E1706737(PDF).
- Experiments in phase 2 and phase 3(However,only one 4ch WDS main box is to be tested).
- The target is a Low power type.
- My desired test period is from 7th Nov to 9th Nov(6th Nov is move date and 10th Nov is preparation day).
Other site works
- Fire drill: Nov. 16 from 11AM - 12AM
- Commissioning Workshop: Nov. 27 to Dec. 1st
Safety
- Incidents: no
- Foreseen risks
- Type-A: vacuum evacuation
- Type-B: possible crane work
- Type-Bp: no work
Discussion
- Type-A accelerometers
- We have only two spare accelerometers
These spare ones have different sensor heads. -> need to exchange the head when used.
- We should consider restarting the collaboration with NIKHEF for the next generation of accelerometers.
Plan for the coming months
Travel Plans
- Travel (Week of 10/30):
- Takahashi:
- Okutomi: 10/30 - 11/3
- Sato:
- Ishizaki:
- Mark: 10/30 - 11/2
- Fabian:
- Hirata:
- Enzo: 10/30 - 11/2
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Travel (Week of 11/6):
- Takahashi:
- Okutomi: 6 - 10
- Sato:
- Ishizaki:
- Mark:
- Fabian:
- Hirata:
- Enzo:
- Shoda: 6 - 10
- Ohishi:
- Fujii:
- Tanaka: 6 - 10
- Kozu (ICRR):
- Arai (ICRR):
Next meeting
On 2017/11/10(Fri)