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

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Presentation on theme: "JT-60U Status and Plans M. Kikuchi for the JT-60 Team Japan Atomic Energy Research Institute JT-60 seminar room, June 14."— Presentation transcript:

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

2 Contents AEC review 2. Unification of JAERI and JNC 3. Organization of Fusion Research at JAERI 4.Status of JT-60U 5. Remote participation 6. Personal assignment for ITPA joint experiments 7. Future plan

3 3rd phase basic program ( June 9, 1992 ) Study Subcommittee on Basic Issues of Fusion Research and Development CSTP (Council for Science and Technology Policy) MEXT (Ministry of education, sports, culture, science and technology) Advisory Committee on Nuclear Fusion AEC (Atomic Energy Commission) Technical Working Group CST (Council for Science and Technology) Subdivision of Science Special Committee on Basic Issues Working Group on Fusion Research Cabinet 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 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 program - 2 -

4 - 3 - JAERI (Japan atomic Energy Research Institute) and JNC (Japan Nuclear Fuel Cycle-Development Institute) will be unified to form a new entity in Mid 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 JNC As for University side, NINS (National Institutes for Natural Sciences) was established in April 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 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)

5 3. Organization of Fusion Research in JAERI Board of Executive Directors President : T. Okazaki Vice President : A. Aoe, S. Tanaka Executive Director : S. Matsuda Office of Planning Director : S. Okada General Manager : S. Ishida Office of ITER Project Promotion Director : Y. Okumura NAKA 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 Division General Manager.: Y. Miura Plasma Analysis Division G. M.: T. Ozeki Large Tokamak Experiment and Diagnostics Division G.M. : Y. Kamada Plasma Theory Laboratory Head : Y. Kishimoto* Experimental Plasma Physics Laboratory Head : Y. Kusama Reactor System Laboratory Head : K. Tobita JT-60 Administration Div. G. M. : Y. Terakado JT-60 Facilities Div. 1 G. M. : K. Kurihara JT-60 Facilities Div. 2 G. 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 Laboratory Head : K. Okuno Plasma Heating Lab. Head : K. Sakamoto Tritium Engineering Lab. Head : M. Nishi Office of Fusion Material Research Promotion Head : M. Sugimoto Fusion Neutronics Laboratory Head : 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 June 1, 2004 *: Kyoto U. Change from last Ex-Co is indicated by red

6 - 5 - Recent trends of operation cycles 4. Status of JT-60U FY2000 : 9 cycles two shifts 18 weeks of experiment FY2001 : 6 cycles two shifts 12 weeks of experiment FY2002 : 2 cycles two shifts 04 weeks of experiment FY2003 : 2 cycles one shift 08 weeks of experiment MG trouble happened in Feb 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 2004 Electricity demand FY 2002 FY 2003 FY 2004 ? Electricity demand ? 40MW 35MW MG trouble Planned Present

7 4. Status of JT-60U National 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 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 devices Number of collaborator - 6 -

8 - 7 - Ip P NBI P ECRF 4. Status of JT-60U JT-60U facility upgrade from 15 s to 65 s limiting factors - OH primary coil current (|I F |≤ 100kA) - Temperature increase in Coils, Feeders, Cables and Power sources - Available energy from the MG

9 P NB (MW) #2#4#6 #7 #8 #10 #12#13#14 #9 P-NB total N-NB W dia (MJ) D  (a.u.) time (s) E43178, 1 MA, 2.1 T 4. Status of JT-60U 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 pulse duration (s) Number of shots H13 H14 H15 N-NB : One ion source (L) has achieved 17s injection (E beam =366keV, 1.7MW)

10 It is planned to inject ECRF of 0.6MW with 30 sec. Injection Power (MW) 4. Status of JT-60U Long pulse adjustment of ECRF 0.4MW x 8.7s was achieved - 9 -

11 4. Status of JT-60U Long pulse sustainment 1.1 f bs >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 n e /divertor performance AT H H >1, n/n G >0.8, f rad ~80% Major Milestones in FY experiments

12 FY2003 Operation Results 4. Status of JT-60U E1-5/03 has been performed on schedule. However, E6-8/03 was cancelled due to electrical accident of H-MG

13 FY2003 Research Achievements 2.  N =3-3.5 for 5-8 seconds with NTM control Planned milestones Achievements in FY2003 f bs =75% for 7.4 seconds  N =2.1 for 20 second H H =0.96, n/n G =0.92, f rad ~90%  N =3 for 6.2 seconds 1. Long pulse sustainment 1.1 f bs >70% for 30 seconds (NS) 1.2  N =2-2.5 for 30 seconds (high  p ) 3. High n e /divertor performance AT H H >1, n/n G >0.8, f rad ~80% 4. Status of JT-60U

14 Task “ Extension of Discharge Duration” Status of JT-60U Task leader S. Ide FY2004 plan   N =2.5 for >20 seconds 2.  N =2.2 for ~30 seconds

15 n  T(JT60) n  T(JET) n  T(TFTR) n  T(DIII-D) n  T(TORE SUPRA) n  T(LHD)-NBI n  T(LHD)-ICH Fusion triple product (kev.sec/m 3 ) Duration (seconds) JT-60U after 2003 JT-60U before 2003 ITER Task “ Extension of Discharge Duration” 4. Status of JT-60U FY2004 plan Ip =1MA at 65second Ip=1.5MA 30s ELMy H-mode Power input > 400MJ NCT Task leader S. Ide kA

16 Task “Development of Advanced Tokamak” 4. Status of JT-60U Task leader Y. Sakamoto Task milestone f BS >70%, duration 〜 8s Achieved f bs =75% for 7.4 seconds FY2004 plan Try high f BS at Bt~2-2.5T

17 Task leader Y. Sakamoto Task “Development of Advanced Tokamak” 4. Status of JT-60U Normalized beta  N Duration (s) 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 plan Sustain  N =3-3.5 for 8s with  N H=5-6 Achieved  N =3 for 6.2 s

18 Task milestone : H H >1, n/n G >0.8, f rad ~80%, >2 s I p =1.0 MA, B T =3.6 T,  =0.37 HH y  N 2.7 f BS 0.48 f CD 1 f fuel 0.78 f rad 0.8 f GW 0.8 ITER SS HFS pellet HFS pellet+D 2 &Ar puff Pellet n =1 mode Task leader H. Takenaga Task “Confinement improvement at high density” 4. Status of JT-60U Achieved transiently H H =0.96, n/n G =0.92, f rad ~90% FY2004 plan H H >1, n/n G >0.8, f rad ~80%, >2 s at Bt=2-2.5T HFS pellet and Ar&D 2 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.

19 SIMS measurement : D/C~0.05 (Much less than other device) Dust size ~ 1  m 4. Status of JT-60U Subject “Plasma Material Interaction” Subject leader Prof. T. Tanabe Total dust equivalent to full torus 7g Cooperation with IEA ESE/FP IA Dust 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)

20 Tentative JT-60U Operation plan in FY Status of JT-60U H-MG will not be used. T-MG will be used for heating. Only commercial electric power line will be used for Toroidal coil. B T is limited to < 3.2 T Discrete B T

21 5. 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 server JT-60U experiment DB server Naka main computer DLS* server DB server for DLS * Data Linkage System Remote user Previous access method New access method O. Naito

22 Format of PDS has been simplified 5. Remote participation O. Naito

23 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 5. Remote participation O. Naito

24 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 5. Remote participation O. Naito

25 6. Personal assignment for ITPA joint experiments EURATOM-Japan agreement on cooperation in fusion, 1989 IEA Large Tokamak Agreement (EURATOM, JAERI,DOE, 1986) 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 experiments US to JT-60U : LT IA Appendix A2 signed by E. Oktay and Visitor EU 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

26 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 plan National Centralized Tokamak Program

27 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 Building JT-60 Storage Building 6. Future plan

28 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 (~2  R, ~60  E ) – Stationary RS ELMy H-mode plasma with f BS ~75% has been sustained for 7.4s under near full CD Efforts to improve the confinement at high density. – HH y2 =0.96 and f rad ~0.9 at f GW =0.92 in high  p H-mode plasma Remote participation system has been simplified. NCT is being promoted.


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