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⇤ ← Revision 1 as of 2026-04-24 08:41:09
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← Revision 2 as of 2026-04-24 10:45:55 ⇥
Size: 1668
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| Deletions are marked like this. | Additions are marked like this. |
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| Date: 2026/4/24 10:00- | Date: 2026/4/24 10:00-10:35 |
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| Participants: | Participants: Ushiba, Washimi, Sato, Takahashi |
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| * FLDACC: [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36564|Installation]], [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36681|Recovery]]. | * FLDACC: [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36564|Installation]], [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36681|Recovery]]. The transfer functions show large cradle effects. |
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| * Suspension adjustment: [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36711|Adjustment]],[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36675|Recovery]]. | * Suspension adjustment: [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36711|Adjustment]],[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=36675|Recovery]]. Investigating the IM OSEM gain change. |
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| * The review was held on April 20th. | * The review was held on April 20th. The calculated surge frequencies of the FR were 30 and 50Hz. |
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| * Application for the present MC suspensions should be considered. |
Contents
VIS Meeting
Date: 2026/4/24 10:00-10:35
Participants: Ushiba, Washimi, Sato, Takahashi
Topics
Type-A
- ACCs for the IP controls.
- TF measurements of the folded pendulum are necessary.
Type-B/Bp
Installation in SRM (Notion page)
IRM damper: Installation.
FLDACC: Installation, Recovery. The transfer functions show large cradle effects.
Mirror replacement: Installation.
Suspension adjustment: Adjustment,Recovery. Investigating the IM OSEM gain change.
- SG card box.
- One box was installed in the SRM rack.
- IP for Type-Bp.
- Started a design.
Type-C
Active isolation table for OMC. (Notion page)
- The review was held on April 20th. The calculated surge frequencies of the FR were 30 and 50Hz.
- Small Type-C suspensions with mini-GAS.
- Application for the present MC suspensions should be considered.
R&D
- Development of a hybrid low-frequency vibration isolation system. Kakenhi (Kiban-B) has been approved.
- Modification of the Type-A tower toward O6.
Discussion
Next meeting
- 2026/5/22 10:00-