LCGT/Meeting/Reviews/External

External Review

External Review in FY 2021

Time:

The following time is selected for convenience for the world wide attendees in an online style.
JST:22-24, PDT:6-8, CDT:8-10, EDT: 9-11, CEST: 15-17. (https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210824T1300)

Online Access:

zoom3 in KAGRA.
I have sent (will send) a zoom link that dose not require password for reviewers. A password is requested for KAGRA collaborators.

Topics, Date, Reviewers and Programs:

KAGRA Cooling Process to avoid Frosting
- Date: July 20th
- Reviewers: Prof. Tanner(Univ. of Florida), Prof. Hammond(Univ. of Glasgow), and Prof. Majorana(INFN Rome).
- Presenter from KAGRA: File by N.Kimura (ICRR. U Tokyo)
- Report from Prof.Majorana and All.
KAGRA Suspension System including Cryo-Payload
- Date: August 19th
- Reviewers: Prof. Shoemaker(MIT), Prof.Ruggi(EGO).
- Presenters from KAGRA: Takahashi (NAOJ):File, Ushiba (ICRR. UT):File1, File2 by Miyo (ICRR. UT)
KAGRA IFO Controls
- Date: August 24th
- Reviewers: Prof. Barsotti(MIT), Prof. Frolov(LIGO Labo.), and Prof. Mantovani(EGO), (Prof. Ballmer(Syracuse Univ.)).
- Presenter from KAGRA: Y.Michimura (wiki, File), C.Hirose (File), K.Tanaka (File)
- Report from All.

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

KAGRA SEO Report by Y. Saito : Report on May 26, 2015
KAGRA Design : KAGRA Review Paper, bKAGRA Interferometer Design (more details:DRSE control, cooling cryopayload,sapphire )
Vibration Isolation : Summary at PAB 2014 Nov (Installation plan (External Review 2014 Apr), External Review 2012 Apr,Design Report 2014 Mar )
Previous External Review :Report in the External Review 2014
Tunnel :Article of the KAGRA tunnel

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

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	O P	-
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)

Location and access: ICRR U-tokyo, Kashiwa campus, 6F large conference roomAccess
EVO access informationEVO info, "KAGRA Answers for 2nd External Reviewers"
Program
KAGRA External Review Final Report

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。

Past External Reviews