JT-60U Status and Plans M. Kikuchi for the JT-60 Team Japan Atomic Energy Research Institute JT-60 seminar room, June 14

JT-60U Status and Plans

M. Kikuchi for the JT-60 TeamJapan Atomic Energy Research Institute

JT-60 seminar room , June 14

Contents

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1. AEC review 2. Unification of JAERI and JNC3. Organization of Fusion Research at JAERI4. Status of JT-60U5.5. Remote participationRemote participation 6.6. Personal assignment for ITPA joint Personal assignment for ITPA joint

experimentsexperiments 7. Future plan

3rd phase basic program （ June 9, 1992）3rd phase basic program （ June 9, 1992）

Study Subcommittee on Basic Issues of Fusion Research and DevelopmentStudy Subcommittee on Basic Issues of Fusion Research and Development

CSTP (Council for Science and Technology Policy)CSTP (Council for Science and Technology Policy)

MEXT (Ministry of education, sports, culture, science and technology) MEXT (Ministry of education, sports, culture, science and technology)

Advisory Committee on Nuclear FusionAdvisory Committee on Nuclear Fusion

AEC (Atomic Energy Commission)AEC (Atomic Energy Commission)

Technical Working GroupTechnical Working Group

CST (Council for Science and Technology)CST (Council for Science and Technology)

Subdivision of ScienceSubdivision of Science

Special Committee on Basic IssuesSpecial Committee on Basic Issues

Working Group on Fusion ResearchWorking Group on Fusion Research

Cabinet OfficeCabinet Office

“Future Direction of National Fusion Research”, Report Jan. 8, 2003

“Future Direction of National Fusion Research”, Report Jan. 8, 2003

Active July 2001-Jan 2003

Active June 2003-

Study subcommittee has been formed under AEC to review status of 3rd phase basic program and to propose basic program

and is ready to submit interim report.

1. AEC review on 3rd phase basic program1. AEC review on 3rd phase basic program

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JAERI (Japan atomic Energy Research Institute) and JNC (Japan Nuclear Fuel Cycle-Development Institute) will be unified to form a new entity in Mid 2005. Present staff and budget of two institutes as of 2003 are as follows.

JAERI employs ~2,200 staff budget ~ 94 billion Yen.

JNC employs ~2,300 staff budget ~ 130 billion Yen.

President of JAERI T. Okazaki from JAERI HP

2. Unification of JAERI and JNC2. Unification of JAERI and JNC

As for University side, NINS (National Institutes for Natural Sciences) was established in April 2004

1. National Astronomical Observatory of Japan(NAOJ)2. National Institute for Fusion Science (NIFS)3. National Institute for Basic Biology(NIBB)4. National Institute for Physiological Sciences(NIPS)5. Institute for Molecular Science(IMS)

As for University side, NINS (National Institutes for Natural Sciences) was established in April 2004

1. National Astronomical Observatory of Japan(NAOJ)2. National Institute for Fusion Science (NIFS)3. National Institute for Basic Biology(NIBB)4. National Institute for Physiological Sciences(NIPS)5. Institute for Molecular Science(IMS)

3. Organization of Fusion Research in JAERI3. Organization of Fusion Research in JAERI

Board of Executive Directors

President : T. OkazakiVice President : A. Aoe, S. TanakaExecutive Director : S. Matsuda

Office of Planning Director : S. Okada General Manager : S. Ishida

Office of ITER Project Promotion Director : Y. OkumuraNAKA FUSION RESEARCH ESTABLISHMENT

Director General : M. Seki

DEPARTMENT OF ADM.SERVICES

Director : I. Kikuchi Deputy director : H. Kobayashi

Administrative Service Div.

Accounts Div.

Utilities and Maintenance Div.

Safety Div.

DEPARTMENT OF FUSION PLASMA RESEARCH Director : H. Ninomiya Deputy director : M. Kikuchi

DEPARTMENT OF FUSION FACILITIES Director : M. Kuriyama Deputy director : N. Hosogane

DEPARTMENT OF FUSION ENGINEERING RESEARCH Director : S. Seki Deputy director : H. Takatsu

DEPARTMENT OF ITER Project Director : T. Tsunematsu Deputy director : R. Yoshino

Tokamak Program DivisionGeneral Manager.: Y. Miura

Plasma Analysis DivisionG. M.: T. Ozeki

Large Tokamak Experiment and Diagnostics DivisionG.M. : Y. Kamada

Plasma Theory LaboratoryHead : Y. Kishimoto*

Experimental Plasma Physics LaboratoryHead : Y. Kusama

Reactor System LaboratoryHead : K. Tobita

JT-60 Administration Div.G. M. : Y. Terakado

JT-60 Facilities Div. 1G. M. : K. Kurihara

JT-60 Facilities Div. 2G. M. : N. Miya

RF Facilities Div. G. M. : T. Fujii

NBI Facilities Div. G. M. : T. Yamamoto

JFT-2M Facilities Div. G. M. : T. Yamamoto

Blanket Engineering Lab.Head : M. Akiba

Superconducting Magnet LaboratoryHead : K. Okuno

Plasma Heating Lab.Head : K. Sakamoto

Tritium Engineering Lab.Head : M. Nishi

Office of Fusion Material Research PromotionHead : M. Sugimoto

Fusion Neutronics LaboratoryHead : T. Nishitani

Project Management Div.Head : M. Mori

International Coordination Div. Head : T. Ando

Tokamak Device Div.Head : K. Shibanuma

Plant System Div.Head : T. Shoji

Safety Design Div.Head : E. Tada

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June 1, 2004

*: Kyoto U.

Change from last Ex-Co is indicated by red

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Recent trends of operation cyclesRecent trends of operation cycles

4. Status of JT-60U4. Status of JT-60U

FY2000 : 9 cycles two shifts 18 weeks of experimentFY2001 : 6 cycles two shifts 12 weeks of experimentFY2002 : 2 cycles two shifts 04 weeks of experimentFY2003 : 2 cycles one shift 08 weeks of experiment

MG trouble happened in Feb. 2004 3 weeks of experiments were cancelled.

FY2004 : 2 cycles one shift 08 weeks of experiment reduced Bt capability

Research plans are based on two year frame.FY 2002 FY 2003 FY 2003 FY 2004

Electricity demand

FY 2002 FY 2003 FY 2003 FY 2004

?

Electricity demand ?

40MW

40MW 35MW

MG trouble

Planned

Present


National research collaborationNational research collaboration

Theme Leaders; (T. Fujita ), S. Ide, H. Takenaga

Director of Department of Fusion Plasma Res.

Task

Extension of Discharge Duration (S. Ide)

AMTEX (K. Tsuzuki)

Development of advanced tokamak(N. Sakamoto)

Core Plasma (T. Takizuka)

Current Hole (T. Fujita)MHD/Energetic Particle / Disruption, (M. Takechi)

Subject

Divertor/SOL (N.Asakura)

Advanced Fueling (H. Ogawa)

Confinement improvement at high density (H. Takenaga)

Research Theme structure for 2003-2004Research Theme structure for 2003-2004

H-mode Physics/ Pedestal (Prof. K. Toi(NIFS))

Modeling of ITB (Prof. A. Fukuyama(Kyoto U))

Current Drive (Prof. K. Hanada(Kyushu U))

Innovative operation (Prof. Y. Takase(U. of Tokyo))

Plasma Material Interaction (Prof. T. Tanabe(Nagoya U))

centralized joint research devicescentralized joint research devices

200

150

100

50

01999 2000 2001 2002 2003 20

04

Number of collaborator

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IpPNBI

PECRF


JT-60U facility upgrade from 15 s to 65 s

2.7T,60s3.3T,30s4T,15s-30s

limiting factors - OH primary coil current (|IF |≤ 100kA)

- Temperature increase in Coils, Feeders, Cables and Power sources

- Available energy from the MG

012012

012

012

012

012

0

1

2

0 5 10 15 20 25 30 35 40

05

10

PN

B (

MW

)

#2#4 #6

#7

#8

#10

#12#13#14

#9

P-NB total N-

NB

Wd

ia (

MJ)

D (

a.u

.)

time (s)

E43178, 1 MA, 2.1 T


NBI upgrade from 10 s to 30 s

4 tangential NB (#7~#10) 30 s.7 perpendicular NB (10 s) any time during 30s.

Total injected energy : 203MJ to 360MJ

0

5

10

15

20

0 100 200 300 400 500

pu

lse

du

rati

on

(s)

Number of shots

H13

H14H15

N-NB : One ion source (L) has achieved 17s injection (Ebeam=366keV, 1.7MW).

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It is planned to inject ECRF of 0.6MW with 30 sec.

Inje

ctio

n P

ow

er

(MW

)

Vacuum pumpingAcceleration power supply (100kV, 0.3A)Amp. RoomJ T- 60UTorus Cell(cross section) PlasmaHigh Voltage DC Power Supplies (each 60kV, 65A)

IGBT Switch• on/off 100A • Shut off <10μs1 MW GyrotronDiamond Window(~60 m, f = 31.75 mm) ft~75~80 %Transmission linesAntennas


Long pulse adjustment of ECRF

0.4MW x 8.7s was achieved

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1. Long pulse sustainment 1.1 fbs>70% for 30 seconds (NS) 1.2 N=2-2.5 for 30 seconds (high p)

2. N=3-3.5 for 5-8 seconds with NTM control

3. High ne/divertor performance AT HH>1, n/nG>0.8, frad~80%

Major Milestones in FY2003-2004 experiments

FY2003 Operation ResultsFY2003 Operation Results

Mon Expwk M T W T F Config pellet Items10 20 21 22 23 24

27 28 29 30 31 TDC, GDC, Sequence test11 3 4 5 6 7 T 15s N P-NB conditioning (upto 10s), Wall conditioning, LH/EC cond.

10 11 12 13 14

17 18 19 20 21 T 65s N P-NB conditioning(30s), Diamag calib.[0.5], MSE calib.[0.5]

24 25 26 27 28 Boronization

12 1 2 3 4 5 T 65s Y N-NB/LH/EC conditioning

E1/03 8 9 10 11 12 T 15s Y AT(high beta)[2.5], HD(HBP)[1.5]

E2/03 15 16 17 18 19 T 15s Y AT(high beta)[0.5], HD(HBP)[0.5], Subjects[3] (QH/type II ELM[1], CS-less[0.75], NTM[0.75], Energetic Ions[0.5])

22 23 24 25 2629 30 31 1 2

1 5 6 7 8 9

E3/03 12 13 14 15 16 T 15s N AT(high BS)[1], Subjects[3](CS-less[1], ITB[0.5], Current hole[0.5], MHD(RS)[0.5], CD[0.5] Åj

E4/03 19 20 21 22 23 T 15s N AT(high beta, high BS)[2.75], Subjects[1.25] (JET/JT-60[1], CD[0.25]Åj

E5/03 26 27 28 29 30 T 65s Y LP(High beta[2.25], j(r) control[0.75], H-mode[0.75], NNB/LH/EC[0.1], W tile[0.15])

2 2 3 4 5 6 Rayleigh scattering9 10 11 12 13

E6/03 16 17 18 19 20 T* 15s Y Cancelled

E7/03 23 24 25 26 27 T 15s Y Cancelled

3 E8/03 1 2 3 4 5 T 15s Y Cancelled

8 9 10 11 1215 16 17 18 19 T* 65s Y Cancelled

22 23 24 25 26 T 65s Y Cancelled

29 30 31 1 2


E1-5/03 has been performed on schedule.However, E6-8/03 was cancelled due to electrical accident of H-MG

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FY2003 Research AchievementsFY2003 Research Achievements

2. N=3-3.5 for 5-8 seconds with NTM control

Planned milestones Achievements in FY2003

fbs=75% for 7.4 seconds

N=2.1 for 20 second

HH=0.96, n/nG=0.92, frad~90%

N=3 for 6.2 seconds

1. Long pulse sustainment 1.1 fbs>70% for 30 seconds (NS) 1.2 N=2-2.5 for 30 seconds (high p)

3. High ne/divertor performance AT HH>1, n/nG>0.8, frad~80%


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Task “ Extension of Discharge Duration”Task “ Extension of Discharge Duration”

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4. Status of JT-60U4. Status of JT-60U Task leader S. IdeTask leader S. Ide

FY2004 plan

N=2.5 for >20 seconds2. N=2.2 for ~30 seconds

nT(JT60)nT(JET)nT(TFTR)nT(DIII-D)nT(TORE SUPRA)nT(LHD)-NBInT(LHD)-ICH

1018

1019

1020

1021

1022

10-1 100 101 102 103

Fusi

on tr

iple

pro

duct

(kev

.sec

/m3 )

Duration (seconds)

JT-60U after 2003

JT-60U before 2003

ITER

Task “ Extension of Discharge Duration”Task “ Extension of Discharge Duration”


FY2004 plan

Ip =1MA at 65secondIp=1.5MA 30s ELMy H-modePower input > 400MJNCT

Task leader S. IdeTask leader S. Ide

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700kA700kA

Task “Development of Advanced Tokamak”Task “Development of Advanced Tokamak”4. Status of JT-60U4. Status of JT-60U Task leader Y. SakamotoTask leader Y. Sakamoto

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0

1

2p, N N

p

0123

Ddiv

[ . .]A U

2

4H89

0

0.5

1

0

10

20Ip

[MA]PNB

[MW]

E43046

3

4

5

6

0.5

0.6

0.7

4 6 8 10 12

qmin

ρqmin

( )Time sec

0

2

4

t=8.2s

0

5

10Ti

Te

t=8.2s

2

4

6

8

10

0 0.2 0.4 0.6 0.8 1

6.8s8.2s

10.8s12.4s

r/a

Task milestone fBS>70%, duration 〜 8s

Achieved fbs=75% for 7.4 seconds

FY2004 planTry high fBSat Bt~2-2.5T

Task leader Y. SakamotoTask leader Y. Sakamoto

Task “Development of Advanced Tokamak”Task “Development of Advanced Tokamak”4. Status of JT-60U4. Status of JT-60U

- 16 -0 5 10

Nor

mal

ized

bet

a N

Duration (s)

0

6

3

1

2

4

5

FY03-04 target

DIII-D

JET

JT-60U/03-04

AUG

JT-60U bef. 03

Task milestone N=3-3.5, Duration=5-8s.

FY2004 planSustain N=3-3.5 for 8s with N H=5-6

Achieved N=3 for 6.2 s

Task milestone : HH>1, n/nG>0.8, frad~80%, >2 s

0.0 9.0 0.0 30.0 0.0 7.0 0.0 3.5 0.0 5.034 5 6789 10TIME ( S ) 0.0 30.0E042843ne

(1019 m-3)

PNBI(MW)

Gas

(Pam3/s)

Wdia8(MJ)

ID(a.u.)

Prad(MW)

nGWneCO2P-NBN-NBD2Arx4.5outer divertormaintotal

Ip=1.0 MA, BT=3.6 T, =0.37

HHy2

1.48

N

2.7

fBS

0.48

fCD

1

ffuel

0.78

frad

0.8

fGW

0.8ITER SS

HFS pellet HFS pellet+D2&Ar puff

Pellet n =1 mode

Task leader H. TakenagaTask leader H. Takenaga

Task “Confinement improvement at high Task “Confinement improvement at high density”density”


Achieved transiently HH=0.96, n/nG=0.92, frad~90%

FY2004 planHH>1, n/nG>0.8, frad~80%, >2 sat Bt=2-2.5T

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HFS pellet and Ar&D2 gas-puffing in divertor configuration.Small ELM during t=6-7 s.High confinement was terminated due to n=1 mode

followed by mini-collapse at t=7.1 s after N-NB was turn off.

SIMS measurement : D/C~0.05 (Much less than other device)

Dust size ~ 1μm


Subject “Plasma Material Interaction”Subject “Plasma Material Interaction”

Subject leader Prof. T. TanabeSubject leader Prof. T. Tanabe

Total dust equivalent to full torus 7g

- 18 -

Cooperation with IEA ESE/FP IADust analyzed at INEEL (Idaho National Engineering and Environmental Laboratory)Cooperation under IEA IA of Environmental, Safety and Economic Aspects of Fusion Power

Many thanks to Dr. John PhillipSharpe(INEEL)

Mon Expwk M T W T F Config pellet Items

6 31 1 2 3 4

7 8 9 10 11

14 15 16 17 18

21 22 23 24 25

28 29 30 1 2 T-MG test7 5 6 7 8 9 T 65s N Operation optimisation, LH conditioning

12 13 14 15 16 T Boronization, N-NB test operation(7/13-15)19 20 21 22 23 T 65s N N-NB/LH/EC conditioning, discharge optimisation26 27 28 29 30 T 65s N N-NB/LH/EC conditioning, discharge optimisation

8 E1/04 2 3 4 5 6 T 15s Y AT(HBP, WS)[1], High ne(RS)[1],Subject[2](CorePlasma(ITB)[1], CH[0.5], Mhd[0.5])

9 10 11 12 13

16 17 18 19 20 Boronization

E2/04 23 24 25 26 27 T* 15s Y w/o VT_in[1], AT(high beta, WS)[1], High ne(HBP, RS)[1],Subject[2](CorePlasma(modulation))

9 E3/04 30 31 1 2 3 T 15s Y AT(WS, high fBS)[1],Subject[3](H-mode[1.25], CH[0.75], CorePlasma(ITB)[0.5], Mhd[0.5])

E4/04 6 7 8 9 10 65s N LongPulse(high beta, control, WT300deg.)[3],Subject[1](InnovOp[1])

13 14 15 16 17

20 21 22 23 24 Boronization, Rayleigh scattering(9/16-22)

E5/04 27 28 29 30 1 T 65s Y AT(high beta, WS)[1], High ne(HBP, RS)[1.5],Subject[1.5](CorePlasma[1], Div[0.5])

10 E6/04 4 5 6 7 8 T 65s N LongPulse(high beta, LHRS)[3],Subject[1](Mhd[1])

11 12 13 14 15

E7/04 18 19 20 21 22 T 65s N LongPulse(control, ITB, high fBS)[4]

E8/04 25 26 27 28 29 T 15s Y High ne(H-mode)[1],Subject[3](CD[1], Div[1], CorePlasma(H-mode)[0.5], Mhd[0.5])

11 1 2 3 4 5

8 9 10 11 12 T TBD TBD TBD15 16 17 18 19 T TBD TBD hydrogen operation22 23 24 25 26 T TBD TBD hydrogen operation

12 29 30 1 2 3 Rayleigh scattering(11/29-12/1)

Tentative JT-60U Operation plan in FY2004.


H-MG will not be used.

T-MG will be used for heating.

Only commercial electric power line will be used for Toroidal coil.

BT is limited to < 3.2 T

Discrete BTMaintenanceExp. operationCond. operation

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5. Remote participation5. Remote participation

• Users at remote sites can now access directly to the main computer at JAERI Naka site for viewing and analyzing JT-60U experiment data.

• Remote users (both domestic and international) can use the same analysis tools as in Naka site provided they have appropriate X-window environment.

Direct access to JT-60 DB serverDirect access to JT-60 DB server

JT-60UexperimentDB server

Naka maincomputer

DLS*server

DB serverfor DLS

* Data Linkage System

Remoteuser

Previous access method

New access method

O. Naito

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Format of PDS has been simplifiedFormat of PDS has been simplified

5. Remote participation5. Remote participation O. Naito

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• Due to the change in the remote access method, the format of PDS has been modified and somewhat simplified:

• “Registration Items for DLS”– This section is now replaced by “Remote Access to JT-60 Data and

Computers”.

• “Research Plan”– Specification of “Codes and Programs” and “Exchange Data” is no longer

necessary.– But as described in “Policy Agreement on the Usage of JT-60U Data and

JAERI Computers”, data, codes, and computers must be used only for the official purpose granted in PDS.

• “Notices”– A remark on the one-time password authentication system has been added.

Change in the Proposal Document Sheet format


- 22 -

• To access to JT-60U data, a remote user needs:– One’s name listed on the “Proposal Document Sheet” as a remote user– At least one on-site participation to JT-60U project– Signed “Policy Agreement on the Usage of JT-60U Data and JAERI

Computers” sent to JAERI

• On completion of these requirements, JAERI will provide a remote access account for computers at Naka site, along with a SecurID token necessary for one-time password authentication system.

RSA SecurID token

Requirements for remote access to JT-60U data


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6. Personal assignment for ITPA joint experiments6. Personal assignment for ITPA joint experiments

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EURATOM-Japan agreement on cooperation in fusion, 1989

IEA Large Tokamak Agreement(EURATOM, JAERI,DOE, 1986)

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Doublet III Agreement(DOE-JAERI) 1979

US-Japan agreement on cooperation in R&D in energy fields, 1979

AT Agreement(IPP-JAERI),2004?

ITPA Joint experimentsUS to JT-60U : LT IA Appendix A2 signed by E. Oktay and VisitorEU to JT-60U : LT IA Appendix A2 signed by M. Watkins and Visitor JT-60U to US : Personal assignment agreement (US-J) is required except PPPL and GA.JT-60U to EU : Personal assignment agreement (EU-J) is required except JET.

Procedures for personal assignment

- 24 -

NBICryostatSuperconducting Poloidal CoilSuperconducting Toroidal Coil Vertical & horizontal position control coils8 m Resistive wall mode control coilsNBI

• Objectives: to realize high-beta steady-state operation with the use of reduced radio-activation ferritic steel in a collision-less regime.

• Planning : For further progress in the high beta steady state research, the modification of JT-60 is regarded as “National centralized tokamak facility program”. Detailed design work is ongoing in collaboration with universities, institutes and industries in Japan.

7. Future plan7. Future plan

National Centralized Tokamak Program

- 25 -

JT-60Storage Building is completed

JT-60 Experimental Building

JT-60 Control Building

Rectifier Building

MG Building

Central Power Station, 275kV line

Primary Cooling Building

Heating PS BuildingJT-60 Storage Building

6. Future plan6. Future plan

- 26 -

- 27 -

Summary

• Long pulse operation is successfully performed.– 65 second discharge– 30 second H-mode– 24 second sustainment of N~1.9

• Region of sustained high beta has been extended.– N~3 for 6.2s (~2R, ~60E)– Stationary RS ELMy H-mode plasma with fBS~75% has been sustaine

d for 7.4s under near full CD• Efforts to improve the confinement at high density.

– HHy2=0.96 and frad~0.9 at fGW=0.92 in high p H-mode plasma• Remote participation system has been simplified.

• NCT is being promoted.

Documents

JT-60U Status and Plans M. Kikuchi for the JT-60 Team Japan Atomic Energy Research Institute JT-60 seminar room, June 14