VIS Meeting

Date: 2025/1/31 10:00-10:30

Participants: Ushiba, Washimi, Yokozawa, Tanaka, Sato, Takahashi, Miyoki

Topics

Height adjustment during the cooling.
- Total (duct + cryostat) height change was 1~3mm.
ACCs for the IP controls.
- Preparing for the stand-alone test bench with DGS in Mitaka. Ikeda-san has set the DGS up in the ATC lab.

Enclosure for the SG card into an independent box.
- Tanaka-san will make a prototype.
Yaw damper for Type-B.
- One set should be tested in SRM around autumn 2025.
IP for Type-Bp.

Active isolation table for OMC.
- Sato-san is checking the parameters of the TMS isolator for OMC. He calculated the blade springs.
- Asking Marutsu to make geophone pre-amp boards.
Vibration in the IFI chamber
- Fixing the STM is planned for late February.
Small Type-C suspensions with mini-GAS.

KAGRA/Subgroups/VIS/VISMinutes20250131 (last edited 2025-01-31 10:30:42 by RyutaroTakahashi)

-  ⇤ ← Revision 2 as of 2025-01-30 10:11:44 → 
  Size: 1011
  Editor: RyutaroTakahashi
  Comment:
+   ← Revision 9 as of 2025-01-31 10:30:42 → ⇥
  Size: 1349
  Editor: RyutaroTakahashi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 5:
-Date: 2025/1/31 10:00-
+Date: 2025/1/31 10:00-10:30
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-Participants:
+Participants: Ushiba, Washimi, Yokozawa, Tanaka, Sato, Takahashi, Miyoki
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-  * Total (duct + TM) height change was 1~3mm.
+  * Total (duct + cryostat) height change was 1~3mm.
 Line 20:
-  * Asking Tanaka-san who will make a prototype.
+  * Tanaka-san will make a prototype.
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+  * Asking Marutsu to make geophone pre-amp boards.
-Line 29:
+Line 30:
-  * Fixing the STM in the IFI chamber is planned for late February.
+  * Fixing the STM is planned for late February.
-Line 35:
+Line 36:
+ * Task list for authorship 2025.
  * Management of the group
  * Commissioning of the suspensions toward O4c
  * Maintenance of the suspensions during O4c
  * Preparation for upgrade toward O5
  * Control upgrade
  * Software development