VIS Weekly Report on 2016/12/23
Progress report
Schedule Chart (PDF,MPP) (To Be Updated)
Type-A (Takahashi)
- Transportation: The second transportation for EQ stop parts and tools is scheduled in 10-11th from Mitaka to Kamioka by Kamoshida, on 12th to Y-end by Kamioka-kogyo, and on 13th to 2F by MESCO in January.
- EYV chamber: The top chamber was connected on 20th. Two cross tubes were assembled too. The piston system was modified, so cone bellows were not necessary. We started pump down the EYV system on 21st.
- Pre-isolator: The assembly of two pre-isolators for SR is on going in ATC.
- EQ stop, release sensor, dummy payload: Delivered parts were checked on 21st and 22nd.
- BF damper: The production is on going.
- Maraging wire: The production is on going.
- Tooling for installation: The fiber scope will be ordered soon.
Type B (Mark)
- Activity report for week of 12/19
Hirata-san made (and Fabian and Mark checked) drawings and parts/fastener lists for the SRM/PRM order and various others: D1605964, D1605965, D1605956, D1605963, D1605977, etc.
- Fabian designed a simple two-piece hold-down device to immobilize the SRx IMs during the optic and RM hanging. It avoids having to remachine all the IM support bars to allow for hold-down screws. The Type Bp team might also want to use it.
Aso-san and Mark discussed the BF issue from last week.
- It was decided to ask Takahashi-san to take a look at the BF while he's at Kamioka this week.
- It was decided to have the BS bottom filter moved to Mitaka for tuneup and adjustment as soon as possible in the new year.
- Raffaele, Aso-san, Mark and Fabian discussed having much smaller/shorter BS and SR stub flags plus longer, coil-only OSEMs.
- Aso-san volunteered to do the OSEM design.
- Hirata-san made Pack'n'Go archives of the existing designs as a baseline for Aso-san.
- Hirata-san searched for missing PR mirror box parts.
- Miyakawa-san finished recabling the PR2 rack and got the BS real-time model running again. (The problem had been a new requirement for a safe.snap file to be provided in the burt directory, which was imposed by version RCG2.9.7 of the real-time software.) The model still needs lots of work, but it has the OSEM functionality needed for the next stage of the BS test hang, plus Okutomi-san's improvements.
Type-Bp (Shoda)
Gluing jig is still missing. WANTED!!
- At the same time, contacted the company in order to purchase a new set.
- Okutomi-kun checked the parameter of the LVDT combiner.
- Site Work
The spare mirror is sent to Kamioka from Kashiwa properly by the delivery company. klog(sending)klog(receiving)
- The hanging frame is aligned to the assembly frame.
We found that the bars for BF EQ stop ring have to be removed temporally for winch setting. klog
IM was set on the hanging frame. The slider's stopper screws are set. klog(put IM)klog(align IM)
Arrange the existing parts so that we can use them smoothly klog
Okutomi-kun set up the photo sensors. Calibration has to be done. klog
To do
- Check the number of screws and parts we need, not only for PR3 but also for all the suspensions.
- Inventory update
- Establish the payload disassembly procedure.
- Buy gluing tools for KAGRA use.
IMMT (Ohishi)
- Gave up to fix magnets and standoff before hanging.
- Some additional parts that compensate mirror thickness difference between IMMT and MC were ready but
- I forget that the diameter was also different.
Watchdog system (Tanaka)
- Put a report here
Safety
- Incidents: if you had any incident, report here.
Travel Plans
- Travel (Week of 12/26):
- Takahashi:
- Shoda: 26-28
- Mark:
- Fabian:
- Okutomi: 26-28
- Fujii:
- Ishizaki:
- Hirata:
- Sato:
- Enzo: 26-28
- Ohishi:
- Travel (Week of 1/9):
- Takahashi: 10-13
- Shoda:
- Mark:
- Fabian:
- Okutomi:
- Fujii:
- Ishizaki: 11-13
- Hirata:
- Sato:
- Enzo:
- Ohishi:
Next meeting
On 2017/1/6(Fri) @ Mitaka