Differences between revisions 5 and 6

Agenda/Minutes of the VIS Meeting on 2018/9/21

2018/9/21 13:30 - 14:50

Participants:Mark, Fabian, Kozu, Aso, Ohishi, Panwei, Hirata, Tanaka, Takahashi, Sato

Progress report

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

The orientation of the PRM mirror was adjusted to reflect the input beam back to the IFI
As a result, the IM OSEM went out of the range
We also found that the BF keystone was sitting on the EQ stop
We lifted the BF keystone with the fishing rod
Then we adjusted the OSEM positions, by entering the chamber, to get them back to the working range.
Now the PRM is in a good alignment state.
The transfer function measurement shows it is healthy.
Related klog entries 6192 6215

JGW-S1403045 Assembled Chassis of the KAGRA LVDT Driver
- Received to MTK(NAOJ) for Repair 2018/09/18
- I had identified a broken board. And S1403073 removed.
- Returned to Kamioka(Mozumi) 2018/09/19.
- Waiting for parts(for repair) order and arrival for S1403073.

On 2018/9/28(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180921 (last edited 2018-09-21 18:15:45 by RyutaroTakahashi)

-  ⇤ ← Revision 5 as of 2018-09-21 15:09:26 → 
  Size: 2025
  Editor: YoichiAso
  Comment:
+   ← Revision 6 as of 2018-09-21 15:18:47 → ⇥
  Size: 2630
  Editor: YoichiAso
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 21:
+ * The orientation of the PRM mirror was adjusted to reflect the input beam back to the IFI
 * As a result, the IM OSEM went out of the range
 * We also found that the BF keystone was sitting on the EQ stop
 * We lifted the BF keystone with the fishing rod
 * Then we adjusted the OSEM positions, by entering the chamber, to get them back to the working range.
 * Now the PRM is in a good alignment state. 
 * The transfer function measurement shows it is healthy.
 * Related klog entries [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=6192|6192]] [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=6215|6215]]