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  * Height change of PRs: Aso, Takahashi, Ohishi, Miyo
   * We opend the chamber and we confirmed that the height of PR2 and PR3 were not at the wrong point.
   * LVDT had jump several times in the past, so absolute position of LVDT is not trustable.
  * Height change of PRs: Tomaru, *Aso, Takahashi, Ohishi, Miyo
   * We opened the PR2 and PR3 chamber and we confirmed that the height of keystone and mirror of PR2 and PR3 were not at the wrong point.
   * PR2 was within ~1mm range and PR3 was ~5mm range from the center line. The height of RP3 was changed a bit by fishing rod, and we did not change PR2.
   * Fishing rods worked well and still were within the range
.
   * LVDT seemed to have jumps several times in the past, so absolute position of LVDT is not trustable.
    * Recorded the current height and current value.
Line 66: Line 69:
  * Alignment and ETMY: *Enomoto, Ushiba, Miyamoto
   * Beam shift at the PR2 was large ~1cm, and the beam was clipped at the PR3 ~10cm.
   * Damping of pitch is still under investigation. TFs of pitch role etc. are dirty.

  * IOO: kokeyama
   * A good IO chassis changed and everything seems to be OK now.

  * AOS:
   * Lasers of oplev will can be dying soon.
    * The lifetime is about 100000h.
Line 71: Line 78:
  * IOO: kokeyama
   * A good IO chassis which showed the correct IRIG-B ~12 was found. We will replace the current one to the new good one.
   * It was noticed that MC and FSS shows something wrong this morning. We will check it before changing IO chassis.
  * Camara: Yokozawa, Inouse
   * We tried to see BS using Tcam at IXC, but we could not see the BS even with an illuminator. This may be because of the limit of area of viewport on the gate valve.
Line 75: Line 81:
  * CRY: mirror temperature ~100K.   * CRY: mirror temperature ~94K.
Line 80: Line 86:
  * Camera: Yokozawa
   * BS figure will be checked if no laser was coming.
  * Alignment:
   * IMMT and MC will be aligned to center PRs.

KAGRA Commissioning Wiki


Task list


Schedule

2017/2/26 updated KAGRA/Commissioning/Commissioning_schedule_20180227.png


Working people assignment

  • *: responsible person
  • Beam leading to REFP port
    • *Enomoto



Meetings


Morning meeting

  • Date and time: Every weekday, 9AM
  • Location: Control room, or eZuce

2017/3/1(Thur.)

  • Remote participants by eZuce: None
  • Report of work (*:responsible person)
    • Height change of PRs: Tomaru, *Aso, Takahashi, Ohishi, Miyo
      • We opened the PR2 and PR3 chamber and we confirmed that the height of keystone and mirror of PR2 and PR3 were not at the wrong point.
      • PR2 was within ~1mm range and PR3 was ~5mm range from the center line. The height of RP3 was changed a bit by fishing rod, and we did not change PR2.
      • Fishing rods worked well and still were within the range.
      • LVDT seemed to have jumps several times in the past, so absolute position of LVDT is not trustable.
        • Recorded the current height and current value.
      • It means that the beam changed upstream PR like IMMT, or MC.
      • We absolutely need monitors to check beam position at all the mirrors.
    • IOO: kokeyama
      • A good IO chassis changed and everything seems to be OK now.
    • AOS:
      • Lasers of oplev will can be dying soon.
        • The lifetime is about 100000h.
    • Camara: Yokozawa, Inouse
      • We tried to see BS using Tcam at IXC, but we could not see the BS even with an illuminator. This may be because of the limit of area of viewport on the gate valve.
    • CRY: mirror temperature ~94K.
  • Work plan (*:responsible person)
    • Alignment:
      • IMMT and MC will be aligned to center PRs.
  • Laser hazard: AM: PSL, PM: Upstream SR2-3 line, and Y-end.
  • Weekly
    • Week of 2/26
      • ETMY tuninng.
      • Beam alignment to REFL port.
      • 2/28: Height change for PRs
    • week of 3/5
      • IYC door will be closed.
      • Exchanging items and cleaning inside the PR2 chamber
    • week of 3/12
      • TMS installation at ETMY.
      • Connecting ducts at the corner area.
    • week of 3/19
      • Vacuum test at at the corner area.
      • TMS alignment using green light at ETMY.
  • Issues

KAGRA/Commissioning/DailyWork
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Weekly meeting

  • Date and time: Every Tuesday, 11AM
  • Location: Meeting room at Hokubukaikan, or eZuce, Polycom

No.

Date

Agenda

Schedule

Minute

Files

20

2018/2/27

Agenda

Schedule

Minute

19

2018/2/20

Agenda

Schedule

Minute

18

2018/2/13

Agenda

Schedule

Minute

17

2018/2/6

Agenda

Schedule

Minute

16

2018/1/30

Agenda

Schedule

Minute

15

2018/1/23

Agenda

Schedule

Minute

14

2018/1/16

Agenda

Schedule

Minute

13

2018/1/9

Agenda

Schedule

Minute

12

2017/12/19

Agenda

Schedule

Minute

11

2017/12/12

Agenda

Schedule

Minute

10

2017/11/28

Agenda

Schedule

Minute

9

2017/11/14

Agenda

Schedule

Minute

8

2017/11/7

Agenda

Schedule

Minute

7

2017/10/31

Agenda

Minute

G1707278-v4

6

2017/10/24

Agenda

Minute

G1707278-v3

5

2017/10/17

Agenda

Minute

G1707278-v2
G1707298
G1707300

4

2017/10/10

Minute

G1707278-v1

3

2017/10/3

Agenda

Minute

Commissioning plan for phase1

2

2017/9/26

Agenda

Minute

Commissioning plan for phase1

1

2017/9/19

Commissioning plan for phase1


Other meetings


Documents

Communication tools


for New members

KAGRA/Commissioning (last edited 2023-09-24 11:11:02 by miyoki)