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As you all know, we have had trouble starting a measurement with a DGS error. In order to eliminate this confusion during the work, I make the following rules;
 * First, make sure that the VIS_OVERVIEW screen is all green before you start working.
 * And after working, be sure to make everything green and finish your work. This is a kindness for the next operator.
 * The SDF will probably turn red as you work. This means that SDF has detected channel differences during your work. If you accept these differences, please be sure to take a screenshot and post it in klog, but you don't have to post it to revert.

That's all.

Agenda/Minutes on 2020/12/4

Zoom Meeting

CRY+VIS Interface Meeting

13:30-

Participants:

Post O3 Upgrade portal

  • Schedule: Upgrade work in IXV (2/22-3/10) will be swapped with the work in EXV (1/4-1/22). The connection of ITMX is available on 1/12.
  • Jig for the FC painting.

  • Acceptance check items (Inspection document).

  • PF actuator: Measurement of coefficients --> calculation of the noise (by the end of Jan.).

VIS Meeting

14:00-

Participants:

Progress report

General

[Miyo] As you all know, we have had trouble starting a measurement with a DGS error. In order to eliminate this confusion during the work, I make the following rules;

  • First, make sure that the VIS_OVERVIEW screen is all green before you start working.
  • And after working, be sure to make everything green and finish your work. This is a kindness for the next operator.
  • The SDF will probably turn red as you work. This means that SDF has detected channel differences during your work. If you accept these differences, please be sure to take a screenshot and post it in klog, but you don't have to post it to revert.

That's all.

Type-A

Type-B

Type-Bp

Type-C

  • Set up the old OSTM suspension in the OMC both.

  • [Miyo] We (mainly Ikeda-san) made Type-C guardian. Now we can use ALIGN state. In this state, we only engage the APTICALIGN with ramp time not engage the OpLev DC control according to Nakano-san's advices. klog#15578

Controls

[Miyo]

Electronics

  • Tested the modified LVDT card. This modification (#14 pin grounded) will be applied to 16 cards.

Towards O4

Safety

Discussion

  • Mechanical resonances of SRM.

Travel Plans

The week from 12/7

  • Takahashi: 12/7-11
  • Hirata: 12/7-11
  • Yano: 12/7-11

The week from 12/14

  • Takahashi: 12/14-18
  • Hirata: 12/14-18
  • Yano: 12/14-18

(F2F Meeting in 12/17-18)

Next meeting

  • On 2020/12/11(Fri)

KAGRA/Subgroups/VIS/VISMinutes20201204 (last edited 2020-12-04 15:23:41 by RyutaroTakahashi)