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  * Kimura (ICRR. UT)   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13118 | Kimura (ICRR. UT) ]]

External Review (in English)

External Review in FY 2021

Time:

JST:22-24, PDT:6-8, CDT:8-10, EDT: 9-11, CEST: 15-17,

Topics:

  • KAGRA Cooling Process to avoid Frosting (July 20th ) with Prof. Tanner, Prof. Hammond, and Prof. Majorana.
  • KAGRA IFO Controls ()
  • Suspension System including Cryo-Payload ()
    • Takahashi (NAOJ)
    • Ushiba (ICRR. UT)
    • Miyo (ICRR. UT)

4th External Review (Date: June 29(Mon) - July 1(Wed), 2015)

  • APA Ville Hotel Information

  • Venue Location and Access in Toyama city: University of Toyama,Multipurpose Auditorium in University of Toyama,Closed Session Room is B201.

  • Access to Toyama city

  • The Seevogh access is prepared for AM and PM for each day, independently. The remote participants using EVO are allowed only to listen.

  • WiFi in the Venue : Plese receive an account and information sheet in front of the venue.

  • Note : The temperature in the Kamioka mine is about 15 degrees all year around. For prevention against the cold and accident, please wear casual long-sleeved shirt(or bring jacket), long pants and shoes.

Scope

Technical review of bKAGRA design and installation plan Current status of iKAGRA construction will be provided as well.

Program

Some Information

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 29th June (Mon) ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Time

Title

Speaker

Presentation

Document

8:50 ~ 9:00

Closed Session by Reviewers

9:00 ~ 10:00

Project Overview

Welcome Talk (15min)

S. Nakamura

(Dean of the Faculty of Science, Univ. of Toyama )

Project Overview (20min)

Y. Saito

O

-

Overview of this Review (20min)

M. Ando

O

-

10:00 ~ 10:40

Introduction （Tunnel and Facility）

Tunnel/ Vacuum System (20min)

T. Uchiyama

O

-

Facility (20min)

S. Miyoki

O

-

10:40 ~ 11:00

Discussion

Kamioka Tour

11:00 ~ 12:20

Move to Kamioka site (Lunch in bus)

12:20 ~ 16:40

On-Site Discussion

16:40 ~ 18:00

Move back to Toyama

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 30th June (Tue) ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Time

Title

Speaker

Presentation

Document

9:00 ~ 12:00

Item (1) : bKAGRA Configuration and Plan

Goal and target sensitivity of bKAGRA (30min)

K. Somiya

O

-

Recent cost cuts for KAGRA

Y. Aso

O

-

Costcut effect VAC & FC (20min)

Y. Saito

O

-

bKAGRA installation schedule (20min)

T. Uchiyama

O

-

Discussion

Discussion

-

12:00 ~ 13:20

Lunch

13:20 ~ 17:00

Item (2) : Vibration Isolation

Overview of KAGRA VIS

R. Takahashi

O

-

Mechanical Installation Procedure

R. Takahashi

O

-

Clean Installation Procedure

E. Hirose

O

-

Measurement of the mirror positions

Y. Saito

O

-

Control and Tuning of the suspensions

T. Sekiguchi

O

-

17:00 ~ 18:00

Discussion (answers to questions on the 1st day)

18:00 ~

Banquet

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 1st July (Wed) ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Time

Title

Speaker

Presentation

Document

9:00 ~ 12:00

Item (3) : Cryogenics and Test mass

Cryogenic Payload / Cryogenics (60min)

K. Yamamoto

O

-

Sapphire Mirrors / bKAGRA Mirrors (60min)

E. Hirose

O

-

12:00 ~ 13:20

Lunch

13:20 ~ 15:40

Item (4) : High Power Operation

Overview (15min)

S. Kawamura

O

-

High-power laser (15min)

R. Nishiuchi

O

-

Pre-stabilization system (15min)

M. Nakano

O

-

Baffle (15min)

T. Akutsu

O

-

15:40 ~

Discussion (answers to questions on the 2nd day)

~ 16:30

Closed Session by Reviewer

16:30 ~ 16:40

Short summary and Closing remarks

16:40

Adjourn

Program

Items to be discussed (Preliminary)

(1) bKAGRA configuration and Plan
  • bKAGRA configuration [Somiya, ~30min + Discussion]
  • Constraints and plan on budget and milestones [Aso, ~30min + Discussion]
  • Influence of the cost saving (VAC + FCL) [Saito, ~20min + Discussion]
  • Preliminary installation plan based on current situation [Uchiyama, ~20min + Discussion]

(2) Vibration isolation
  • Overview of the KAGRA Vibration Isolation System [R. Takahashi]
  • Installation Procedure
    • Mechanical Installation [R. Takahashi]
    • Clean installation of the mirrors [E. Hirose]
    • Measurement and verification of the mirror position/orientation. [Y. Saito]
  • Control and tuning of the suspension systems. [T. Sekiguchi]

(3) Cryo-payload and sapphire test masses
  • Cryogenic Payload / Cryogenics [Yamamoto]
  • Sapphire Mirrors / bKAGRA Mirrors [Hirose]

(4) High Power Operation
  • Overview [Kawamura, 15min + Discussion]
  • High-power laser [R. Nishiuchi, 15min + Discussion]
  • Pre-stabilization system [M. Nakano, 15min + Discussion]
  • Baffle [Akutsu, 15min + Discussion]

References

Reviewers

Name

Affiliation

Remarks

Mike Zucker

LIGO-Lab/ Massachusetts Institute of Technology

Chair

Rana Adhikari

LIGO-Lab/ California Institute of Technology

Katsunobu Oide

KEK

Norna Robertson

California Institute of Technology

Valery Frolov

LIGO-Lab/ California Institute of Technology

Ho Jung Paik

University of Maryland

Keith Thorne

California Institute of Technology

KAGRA Participants

Takaaki KAJITA, Masatake OHASHI, Seiji KAWAMURA, Yoshio SAITO, Shinji MIYOKI, Takashi UCHIYAMA, Osamu MIYAKAWA,

Kazuhiro YAMAMOTO, Eiichi HIROSE, Keiko KOKEYAMA, Masayuki NAKANO (ICRR), Toshikazu SUZUKI, Nobuhiro KIKUMURA,

Takayuki TOMARU (KEK), Raffaele FLAMINIO, Yoichi ASO, Ryutaro TAKAHASHI, Tomotada AKUTSU, Naoko OHISHI (NAOJ),

Masaki ANDO, Yuta MICHIMURA, Ryota NISHIUCHI (Univ. Tokyo), Kentaro SOMIYA (TITEC), Kazuhiro HAYAMA (Osaka City U.)

Matsushima Fusakazu (Univ. Toyama), Moriwaki Yoshiki (Univ. Toyama)

Minutes

Minutes

3rd External Review (Date: April 2(Tue) - April 4(Fri), 2014)

  • Location and access: ICRR U-tokyo, Kashiwa campus, 6F large conference roomAccess

  • Bus time schadule from the west entrance of JR KASHIWA station is here

  • The Seevogh access is prepared for AM and PM for each day, independently. The remote participants using EVO are allowed only to listen.

  • WiFi in ICRR 6F large conference room ESSID : 00icrr-11g/b (invisible), WEP : Plese see the information in the room.

Program and Presentations/Documents

[P] : Preliminary. [O] : file is available. [X] : file is not yet available. [-] : file is not required.

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 2nd April (Wed) ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Time

Title

Speaker

Presentation

Document

Project Overview

10:00 ~ 10:10 (10)

Welcome Address and Introduction

T.Kajita

O

-

10:10 ~ 10:30 (20)

Scope of External Review

M.Ando

O

-

10:30 ~ 10:40 (10)

Budget Status

M.Ohashi

O

-

10:40 ~ 11:00 (20)

Scope/Overall Schedule

K.Somiya/Y.Saito

OP

-

11:00 ~ 11:30 (30)

Installation and Commissioning Plan

M.Ohashi/S.Kawamura

O

-

11:30 ~ 12:00 (30)

TUN/FCL/GIF(env)

T.Uchiyama/S.Miyoki/A.Araya

O,O ,O

FCL-VAC

12:00 ~ 13:00 (60)

Lunch

iKAGRA Plan 1

13:00 ~ 13:30 (30)

VAC/CRY(cryostat)/GIF(vac)

Y.Saito/T.Suzuki/A.Araya

P,O

-

13:30 ~ 14:30 (60)

IOO/LAS

K.Kawamura, N.Mio

O, x

-

14:30 ~ 15:10 (40)

Closed Meeting and Break

15:10 ~ 15:30 (20)

MIR (Silica Optics)

E.Hirose

O

-

15:30 ~ 16:30 (60)

VIS

R.Takahashi

P

-

16:30 ~ 17:30 (60)

Closed Meeting

Dinner

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 3rd April (Thu) ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Time

Title

Speaker

Presentation

Document

iKAGRA Plan 2

10:00 ~ 11:00 (60)

MIF (iKAGRA)

Y.Aso

P

-

11:00 ~ 11:30 (30)

AOS(oplev, viewport)

T.Akutsu

O

Another file.O

11:30 ~ 13:00 (90)

Lunch

13:00 ~ 13:30 (30)

DGS

O.Miyakawa

O

O O O

13:30 ~ 14:00 (30)

AEL

O.Miyakawa

O

O

14:00 ~ 15:00 (60)

DMG/DAS/DetChar

N.Kanda, H.Tagoshi, K.Hayama

o,O, O

-

15:00 ~ 15:30 (30)

Closed Meeting and Break

15:30 ~ 16:30 (60)

Reserved

16:30 ~ 17:30 (60)

Closed Meeting

18:00 ~ 20:00

Banquet at Hassai

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ 4th April (Fri) ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Time

Title

Speaker

Presentation

Document

bKAGRA Plan

10:00 ~ 11:00 (60)

CRY (Suspension)

H.Kimura/K.Yamamoto

x, P

-

10:00 ~ 10:20 (20)

MIF/IOO (bKAGRA)--> Canceled

Y.Aso/K.Somiya

x, x

-

11:00 ~ 10:20 (20)

AOS (Baffle, BRT)

T.Akutsu

P

Additional one O

11:20 ~ 11:40 (20)

MIR (Sapphire)

E.Hirose

P

-

12:00 ~ 13:00 (60)

Lunch

13:00 ~ 15:00 (120)

Closed Meeting

15:00 ~ 15:30 (30)

Concluding Session

15:30 ~ 17:00 (90)

Closed Meeting

FCL-VAC Schedule Other Schedule

Reviewers

Name

Affiliation

Remarks

Giovanni Losurdo

Advanced Virgo Project Leader, INFN Firenze - European Gravitational Observatory

Harald Lueck

GEO/ Institut für Gravitationsphysik der Leibniz Universität Hannover und Max-Planck Institut für Gravitationsphysik

Mike Landry

LIGO-Lab/ California Institute of Technology

Rana Adhikari

LIGO-Lab/ California Institute of Technology

Michael E. Zucker

LIGO-Lab/ Massachusetts Institute of Technology

Chair

Secretariat

Seiji Kawamura

KAGRA/ICRR

Masaki Ando

KAGRA/Tokyo Univ.

Chief

Kentaro Somiya

KAGRA/Tokyo Institute of Technology

Deputy chief

Shinji Miyoki

KAGRA/ICRR

Answers for 2nd External Reviewers (Date: 20:00 (Japan Time), September 25(Tue), 2012)

20:00-20:15

Opening Address

Kajita

What happened since the last external review

20:15-20:45

Important issues

Kawamura

iKAGRA scope, Human resources, X-end access and Installation/commissioning

20:45-21:45

Technical issues

Miyoki

VIS, AOS, FCL, FCL about Laser, and IOO

Yamamoto

CRY

Somiya

MIF, IOO and LAS

Ando

DGS and DAS/DMG

21:45-22:00

Discussion and Opinions from Reviewers

22:00

Closing Remark

Kajita

2nd External Review (Date: April 17(Tue) - April 20(Fri), 2012)

  • Location and access: ICRR U-tokyo, Kashiwa campus, 6F large conference roomAccess

  • Note!!: In only 19th PM, the venue is not the 6F large conference room in ICRR building, but the large conference room at the 6F floor (room:633) in 1st Research Complex building that is just next to the ICRR building.Access

  • Banquet is held in 18th evening at the "Hassai" in the La La port.Access in Japanese

  • Bus time schadule from the west entrance of JR KASHIWA station is here

  • The EVO access is prepared for AM and PM for each day, independently. The remote participants using EVO are allowed only to listen.

  • WiFi in ICRR 6F large conference room ESSID : 00icrr-11g/b (invisible), WEP : Plese see the information in the room.

  • WiFi in RC 6F conference room ESSID: gwextreview, WEP : Plese see the information in the room.

References

[O] : file is available. [X] : file is not yet available. [-] : file is not required.

Program and Presentations/Documents

[O] : file is available. [X] : file is not yet available. [-] : file is not required.

4/17 (Tue)

Time

Title

Speaker

Presentation

Document

EVO(17:AM)

10:00-10:20 (20)

(SEO):Objectives and Scope of this External Review

S.Kawamura

O

-

10:20-10:40 (20)

(EC ):KAGRA Project Status

T.Kajita

O

-

10:40-10:55 (15)

(EC ):Budget Status

M.Ohashi

O

-

10:55-11:15 (20)

(EC ):Program Advisory Board Report and our Response

T.Kajita

O

-

11:15-11:35 (20)

(EC ):International Collaboration Status

K.Kuroda

O

-

Lunch (11:35 ~ 13:00)

EVO(17:PM)

13:00-13:25 (25)

(SEO):System Engineering Management Plan (SEMP)

I.Nakatani

O

-

13:25-13:50 (25)

(SEO):KAGRA Sensitivity with Practical Parameters

K.Somiya

O

-

13:50-14:35(45)

(SEO):Interface Control

K.Somiya

O

Interface list, ICD

Coffee Break (14:35 ~ 14:45)

14:45-15:55(50)

(SEO):Roadmap and Bottom-up Schedule

M.Ando

O

Bottom Up Schedule

15:55-16:25 (30)

(SEO):Risk Management

M.Ando

O

Risk factors

4/18 (Wed)

Time

Title

Speaker

Presentation

Document

EVO(18:AM)

09:30-09:45 (15)

(SEO):Layout

S.Miyoki

O

-

09:45-09:55 (10)

(SEO):Performance Measurement System

S.Miyoki

O

-

09:55-10:05 (10)

(SEO):Inventory Management

S.Miyoki

O

-

10:05-11:00 (55)

(VAC):Vacuum

Y.Saito

O

O

11:00-12:00 (60)

(VIS):Vibration Isolation

R.Takahashi

O

O

Lunch (12:00~ 13:15)

EVO(18:PM)

13:15-14:05 (50)

(VIS2):Vibration Isolation

R.DeSalvo

O

-

14:05-15:10 (40)

(CRY1):Cryogenic System

T.Suzuki, N.Kimura

O

O

Coffee Break (15:10 ~ 15:20)

15:20-15:55(35)

(CRY2):Cryo-payload

K.Yamamoto

O

O same with CRY1

15:55-16:25 (25)

(TUN):Tunnel

T.Uchiyama

O

O

16:25-16:35 (10)

(GIF):Geophysical Strainmeter

A.Araya

O

O

18:00-20:00

Banquet (Hassai in Lala port)

4/19 (Thu)

Time

Title

Speaker

Presentation

Document

EVO(19:AM)

10:00-10:50 (50)

(MIF1):Length Control

Y.Aso

O

O1
O2

10:50-11:40 (50)

(MIF2):Alignment Control

Y.Aso et.al.

-

-

11:40-12:00 (20)

Interlock

Y.Aso et. al.

-

-

Lunch (12:00 ~ 13:00)

EVO(19:PM)

13:00-13:30 (30)

(IOO):Input Output Optics

S.Telada

O

O

13:30-14:00 (30)

(AOS):Auxiliary Optics

T.Akutsu

O

O

14:00-14:20 (20)

(DGS):Digital System

O.Miyakawa

O

O

Coffee Break (14:20 ~ 14:40)

14:40-15:00 (20)

(DAS):Data Analysis

N.Kanda

O

O

15:00-15:20 (20)

(MIF4):Detector Characterization

K.Hayama

O

O

15:20-16:00 (40)

(LAS):Laser

N. Mio

O

O

16:00-16:20 (20)

(MIR):Mirror

N. Mio

O

O

4/20 (Fri)

Time

Title

Speaker

Presentation

Document

EVO(20:AM)

10:00-12:00

Closed Session

Reviewers

Lunch (12:00 ~ 13:30)

13:30-

Closed Session

Reviewers

Reviewers

Name

Affiliation

Remarks

Stefan Ballmer

LSC/ Syracuse University

Raffaele Flaminio

Laboratoire des Matériaux Avancés - CNRS/IN2P3

Andreas Freise

GEO/ University of Birmingham

Roberto Passaquieti

Virgo/ University of Pisa

David Ottaway

ACIGA&LSC/ University of Adelaide

Benno Willke

GEO/ Leibniz Universität Hannover

Michael E. Zucker

LIGO-Lab/ Massachusetts Institute of Technology

Chair

Secretariat

Seiji Kawamura

KAGRA/ICRR

Chief

Masaki Ando

KAGRA/Kyoto Univ.

Deputy chief

Ichiro nakatani

KAGRA/ICRR

Shinji Miyoki

KAGRA/ICRR

Kentaro Somiya

KAGRA/Tokyo Institute of Technology

Note for presenters (in Japanese)

  • 1. Overview
    • 1-1. Definition and scope of the subsystem
      • （該当サブシステムの一般的な定義、特にどのサブシステムに属するか明白でない項目についても明記）
    • 1-2. Important interface
      • （該当サブシステムと他のサブシステムとの間のインターフェースについての一般的な記述、特に重要なものについては詳述）
    • 1-3. Design phase
      • （iKAGRAの最終設計、bKAGRAの予備設計という範疇に入らないものを明記）
  • 2. iKAGRA
    • 2-1. Target specifications（目標仕様、重要なスペックだけでよい）
    • 2-2. Final design
      • デザインの記述、最終設計により目標仕様を満たすことができることの説明を加えてください。
    • 2-3. Schedule
    • 2-4. Quality assurance
      • 製造過程において性能を保障するための方策
      • 購入・製作物品の性能確認方法
    • 2-5. Installation scenario
    • 2-6. Risk management（各リスクを可能性と重大さに応じて評価、対策を講じる（SEMP参照））
  • 3. bKAGRA
    • 3-1. Requirements
    • 3-2. Preliminary design
      • 予備設計により要求値を満たすことができることの説明を含めてください
    • 3-3. Schedule
    • 3-4. Prototype test (if any)（予備設計の妥当性を確かめるためのプロトタイプテストの計画）
    • 3-5. Quality assurance
      • 製造過程において性能を保障するための方策
      • 購入・製作物品の性能確認方法
    • 3-6. Installation scenario
    • 3-7. Risk management
  • Appendix
    • A. Design changes that have been made with the suggestions in the 1st external review (if any)
      • （前回の外部レビューで推奨された案件に従って設計の変更を行ったものを列挙）
    • B. Items that have been reduced in cost (if any)
      • （以前の設計でオーバースペックだったが、予算削減のためにスペックダウンした項目
    • C.Human resources
      • 今後必要とされるマンパワー（人数）を2018年まで1年ごとに表示してください。

LCGT/Meeting/Reviews/External (last edited 2021-09-26 19:08:47 by miyoki)