|
Size: 1849
Comment:
|
Size: 3852
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 5: | Line 5: |
| 13:30- | 13:00- |
| Line 7: | Line 7: |
| Participants: | Participants: |
| Line 10: | Line 10: |
| * Schedule: Wire disconnection, WAB safe mode. | * Schedule: Wire disconnection (IX 11/13, EX 11/19), WAB safe mode (10/26-11/13). * FC painting. |
| Line 16: | Line 17: |
| Participants: | Participants: |
| Line 21: | Line 22: |
| * Tested the ribbon heaters in the X-end. The heaters on the cross tube ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15346|klog]]) and top chamber ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15338|klog]]) affected the height of F3/BF and F0 respectively. The temperature of BF was changed little (<0.1deg). The temperature control of heater is meaningful to keep the height of filters. |
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| Line 22: | Line 25: |
| [Fabian] * I watched Mirapro removed the bellows and ducts, especially around BS, wich still has its oplev. Everything seemed alright. Let us measure TFs once the DGS is recovered. * Hirata-san picked up some components, which we will use in vacuum, in order to wash them in Mitaka. * Venting finished on Monday. The buoyancy effect on keystones was reported in klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15322|15322]]. This is very useful information for BS and SR3 work. * Once Mirapro removed the hatch doors in BS chamber that are at the BF level, I took a look and identified places to put the ballast masses. See klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15353|15353]]. Possible activities for the next weeks (subject to Takahashi-san's approval): * Visual inspection of SRM IM looking for a cable pulling. * Removing clamps from the vacuum chambers caps. Mirapro will not do it. People without hernia are required. * Opening of SRM side door. People without hernia are required. * Move IP ballast masses to the 2nd floor of the clean room. * Prepare pallet (or plastic beam replacement) for BS chamber cap. * Recovery of oplevs. * Measurement of gain resistances and phases in LVDT cards. * On BS BF filter, some ballast masses are fastened with a '''very long screw. Because we will add mass there, it would be good to estimate the length of the screw for preparation.''' In order to place a ruler next to it safely, it would be good to open the chamber and lock the IP, together with the BF cap. |
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| Line 28: | Line 49: |
| Line 30: | Line 50: |
| * Chamber opening is on going. | * Chamber opening and DGS update are on going. |
Agenda/Minutes on 2020/10/30
CRY+VIS Interface Meeting
13:00-
Participants:
- Schedule: Wire disconnection (IX 11/13, EX 11/19), WAB safe mode (10/26-11/13).
- FC painting.
- IP monitoring in the next venting on 11/4 and 11/20.
VIS Meeting
14:00-
Participants:
Progress report
General
Type-A
Tested the ribbon heaters in the X-end. The heaters on the cross tube (klog) and top chamber (klog) affected the height of F3/BF and F0 respectively. The temperature of BF was changed little (<0.1deg). The temperature control of heater is meaningful to keep the height of filters.
Type-B
[Fabian]
- I watched Mirapro removed the bellows and ducts, especially around BS, wich still has its oplev. Everything seemed alright. Let us measure TFs once the DGS is recovered.
- Hirata-san picked up some components, which we will use in vacuum, in order to wash them in Mitaka.
Venting finished on Monday. The buoyancy effect on keystones was reported in klog 15322. This is very useful information for BS and SR3 work.
Once Mirapro removed the hatch doors in BS chamber that are at the BF level, I took a look and identified places to put the ballast masses. See klog 15353.
Possible activities for the next weeks (subject to Takahashi-san's approval):
- Visual inspection of SRM IM looking for a cable pulling.
- Removing clamps from the vacuum chambers caps. Mirapro will not do it. People without hernia are required.
- Opening of SRM side door. People without hernia are required.
- Move IP ballast masses to the 2nd floor of the clean room.
- Prepare pallet (or plastic beam replacement) for BS chamber cap.
- Recovery of oplevs.
- Measurement of gain resistances and phases in LVDT cards.
On BS BF filter, some ballast masses are fastened with a very long screw. Because we will add mass there, it would be good to estimate the length of the screw for preparation. In order to place a ruler next to it safely, it would be good to open the chamber and lock the IP, together with the BF cap.
Type-Bp
Type-C
[Sato] IMMT2 modification parts was delivered at Oct.28.
Controls
Electronics
Towards O4
- Chamber opening and DGS update are on going.
- Schedule.
- Arrangement of personnel in Nov.
- Procedure documents.
- Criteria in the acceptance test.
Safety
Discussion
Travel Plans
The week from 11/2
- Takahashi: 11/1-6
- Sato: 11/1-6
- Hirata: 11/1-6
The week from 11/9
- Takahashi: 11/9-13
- Sato: 11/9-12
- Hirata: 11/9-13
Next meeting
- On 2020/11/6(Fri)