N." Ashikawa

T. Nagasaka

Y. "Nakamura

Y. Todo

National Institute for Fusion Science (NIFS-Repository)

 1. Coordination Research Project The coordination research project aims at a smooth accomplishment of a wide range of coordinated research activities in NIFS. It plans, establishes and supports the framework of coordinated research and opens coordinated research products for the effective use of them.   2.  Coordination Research Committee In order to accomplish the above-mentioned purpose, the coordination research committee with the sectional meetings as shown in Fig. 1 was set up and corresponds to a variety of coordinated researches.   Fig. 1. Composition of coordination research committee.  “University cooperation” is the coordination based on the agreements between each domestic university and NIFS. NIFS started the coordinated researches based on the agreements with the universities, and the collaboration with 11 universities (Hokkaido University, University of Tsukuba, University of Toyama, Nagoya University, Osaka University, Gifu University, Tohoku University, Shizuoka University, Kyusyu University, Nagoya Institute of Technology, University of Hyogo) that makes the best use of the feature of both organizations has been executed in 2011. “International cooperation” is categorized to the collaboration based on inter-governmental agreements such as the IEA stellarator-heliotorn agreement, the collaboration based on inter-institutional agreements with 16 institutes of 10 countries and the ITER International Organization. A very active international collaboration was executed in each field of the category.  “NINS cooperation” is the international collaboration research under the National Institutes of Natural Sciences (NINS) and the collaboration within NINS by five NINS member institutes (NAOJ, NIBB, NIPS, IMS and NIFS).  “ITER-BA cooperation” promotes international coordinated activities related to the ITPA (International Tokamak Physics Activity), the ITER project and the ITER-BA project.  “JAEA cooperation” promotes coordinated activities between the Japan Atomic Energy Research Institute (JAEA) and NIFS such as the support of joint experiments. “Laser cooperation” promotes a nuclear fusion research application of the laser technique and a coordinated activity concerning the inertial confinement fusion research “Academic-industrial coordination” is aimed to provide the latest technical findings of NIFS as payback to the society for an extensive use under collaboration with industry.  3.  Achievements of Coordination Research The achievements of coordinated research activities are included in each section in this annual report as a result of a wide range of joint research. Only a part in the result of coordinated research activities is settled here.  ITER/BA collaboration is one of the most important cooperation in NIFS, the activities of the sectorial meeting for ITER-BA cooperation including the contribution to the ITPA is summarized. Relating to the laser cooperation, a new apparatus for fuel layering demonstration of FIREX (Fast Ignition Realization Experiment) target has been studied under the collaboration between ILE of Osaka University and NIFS. The hot electron measurement using electron spectrometer on FIREX was reported. The fundamental study of high energy laser system for plasma diagnosis and heating has been done as the collaboration with ILT (Institute for Laser Technology) and Osaka University. The basic research for cleaving of single crystal semiconductor materials by laser was reported as the collaboration with Chubu University. The following 7 reports were performed in relation to the microwave application for the academic-industrial cooperation with Tohoku Univ., Electro-Communication Univ., Chubu Univ., Tokyo Univ. of the Arts, Sophia Univ., AIST and the Toki municipal institute of ceramics. The results of the fundamental studies for magnetic materials processing and environmental processing were reported. The results of the theoretical study of non-thermal microwave effect on intra-molecular reactions were reported. The planning and construction of a furnace heated by microwave with 120 kW at 2.45 GHz aiming at the effective and rapid production of pig iron were reported. As the study of the generation mechanism of microwave applied liquid plasma, the energy-saving liquid plasma generation device has been developed coupling microwaves and an ultrasonic homogenizer. As the elucidation of the microwave special effects in water, the difference of the heating behavior of the aqueous electrolyte solutions was reported under H-filed and E-filed. The evaluation of microwave absorption for solid and liquid samples was reported by coaxial cable probe method. The results of the practical trails of sintering ceramics by microwave kiln were reported as successful examples of the region cooperation.  Lastly, study of methods of scientific and industrial application of atomic and molecular data was summarized.  (Mito, T.)  Construction of ITER is in progress and the first building for assembling the superconducting poloidal field coils was completed in the ITER site. The ITER headquarters office building will be completed during the summer season in 2012. ITER organization and domestic agencies have signed 60 procurement arrangements, which amount to 71.5% of the total procurement value for the construction of ITER. The urgent issues are to decide to make the scenario of CS conductor and the cold test for TF coil. Another one is to make the scenario on W divertor installation. Broader Approach (BA) Activity is also in progress. High performance computer was installed in Rokkasho site and the computing speed of about 1 Peta flops was achieved. The official activities on computer simulation will be started from April in 2012. The Satellite Tokamak JT-60SA is in the manufacturing phase and will be in the assembly phase with the cryostat base delivery to Japan at the end of 2012. The joint work between EU and JA fusion communities completed the update of the JT-60SA Research Plan to Ver 3.9 in December 2011. In this year, new collaboration activity on the development of fusion plasma diagnostics in ITER was started between JAEA and NIFS. The JAEA designated as the Japanese Domestic Agency for the ITER project is responsible for the procurement of several ITER plasma diagnostics. Plasma diagnostics in LHD have excellent performances and are highly evaluated in the world. It is very important to collaborate with JAEA members for developing and constructing the ITER diagnostics. After discussing about collaboration items, we decided to make collaboration for developing the microfission chamber to measure neutron flux, Thomson scattering system in edge plasma and divertor IR thermography. We have a collaboration meeting to get information about ITER/BA activities in NIFS and to discuss the collaboration activities (participation in ITPA meetings and the ITER/BA related meetings), two times per year. The most important task in our group is to promote the participation in ITPA, in which the tokamak physics R&D activities are conducted for the ITER design/construction and for general tokamak research worldwide. The ITPA meetings are composed of seven groups (Transport and Confinement Physics; Energetic Particles; Edge Pedestal Physics; SOL and Divertor Physics; MHD Stability; Integrated Operation Scenarios; Diagnostics). The numbers of participants and presentations from NIFS in the 2011 fiscal year are summarized in Table 1. The total participants amount to 21 persons and there were as many as 21 presentations. The travel expenses for 11 participants in the ITPA meetings were supported with the budget for ITER/BA collaboration. At last, the main topics of our presentations in the 2011 fiscal year are listed as following: • ELM activities in LHD and comparison with tokamak • Formation and termination of particle transport barrier in   LHD • Nonlinear evolution of AEs and GAM driven by  energetic ions in LHD • Benchmark results of the MEGA code on the n=6 TAE  mode • Melting of tungsten samples and metallic first wall in  LHD • Dust ejection experiment using sphere carbon dust with  different diameters in LHD • Results of MEGA code for the n=6 TAE benchmark • Experimental study of error field mode in LHD • Turbulence measurements and comparison with gyro  kinetic simulation in LHD • 3D MHD Equilibrium Analyses of ITER and DIII-D • Recent results of high temperature mode, EC/ICRF  heating and steady state operation in LHD • Integrated transport code development and its application  to LHD • Summary of recent dust studies   Topical Group Date (Place) Participants (Presentations) Transport and Confinement Physics 4-5 April  (San Diego) 2 (2) Energetic Particles 11-13April  (Frascati) 2 (3) SOL and Divertor 16-19 May  (Dipoli, Espoo) 2 (2) Energetic Particles 12-13 Sep.  (Austin) 1 (1) MHD stabilitiy 4-7 Oct.  (Padova) 1 (1) Transport and Confinement Physics 5-7 Oct.  (Cadarache) 1 (1) Edge Pedestal  5-7 Oct.  (York) 1 (1) Integrated Operation Scenarios 18-21 Oct.  (Kyoto) 2 (2)  Cordinating Committee 12-14 Dec. (Cadarache) 1 (0) SOL and Divertor 16-19 Jan. (Juelich) 1 (1) MHD stabilitiy 5-9 March (NIFS) 4 (4) Energetic Particles 5-9 March (NIFS) 3 (3) Total 21 (21)  Table 1. ITPA Meetings in 2011/2012.  415§1. Activities on ITER/BA CollaborationNakamura, Y., Todo, Y., Nagasaka, T., Ashikawa, N.

Activities on ITER/BA Collaboration

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Activities on ITER/BA Collaboration

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