4  
Toward Practical Use of Fusion Energy
Fusion Plasma ResearchDEMOReactorFusion Frontier Research

Toward ITER and DEMO٤Develop Plasma‫ޓ‬Performance for DEMO
٤Support ITER
٤Cultivate Human‫ޓ‬Resources
Large Tokamak Device JT-60‫࡮ޓ‬Exp. was accomplished‫࡮ޓ‬Upgrade to JT-60SA started

ITER Project
Domestic Agency for ITER Project
Demonstration of Fusion Energy
࡮Cadarache‫ޓ‬in France࡮Construction‫ޓ‬Started in‫ޓ‬Dec. 2007

JT-60

Develop Technological
Basis for DEMO
٤R&D of Breeding Blanket
٤DEMO Design, R&D
٤Simulation of Burning‫ޓ‬Plasma, Theoretical‫ޓ‬Model٤Remote Experiment٤Engineering Validation‫ޓ‬and Engineering Design‫ޓ‬Activities for IFMIF
International Fusion Energy
Research CenterBlanket

JT-60SA

Broader Approach (BA) Activities
Implementing Agency for BA Activities

Satellite Tokamak

Support ITER, Accelerate early realization of DEMO
࡮International Fusion Energy Research Center
࡮Design Activity for Material Irradiation Facility
࡮Satellite Tokamak
Activities Started in June 2007

Design Activity for IFMIF

Fig.4-1 Development steps toward the Fusion DEMO Reactor
Fusion plasma research and fusion frontier research are being pursued to develop a DEMO reactor, aiming for the early realization offusion energy.

Crucial research and development on fusion plasma
research and fusion frontier research toward the practical useof fusion energy are being pursued through intensive
international cooperation such as the International
Thermonuclear Experimental Reactor (ITER) project,
Broader Approach (BA) activities, and other collaborations(Fig.4-1), aiming for the early realization of a fusion DEMOreactor.
ITER project
The ITER project is an international cooperative project todemonstrate the scientific and technological feasibility offusion energy through the construction and operation of anexperimental reactor. The ITER agreement came into force inOctober 2007, and JAEA was designated as the domestic
agency of the ITER project in Japan. JAEA has proceededwith preparing the equipment that Japan was committed toprovide. In particular, JAEA has continued mass productionof a superconducting coil conductor (Topic 4-1) ahead of any
other country participating in ITER, and has made various
technological developments (Topics 4-2, 4-3).
BA activities
The BA activities are joint projects by Japan and EU for
executing support research for ITER and the research anddevelopment for a DEMO reactor, which is the next step ofITER, aiming for the early realization of fusion energy. The
BA agreement came into force in June 2007, and JAEA wasdesignated as the implementing agency of BA activities inJapan.
BA activities consist of three projects: (a) projects on theInternational Fusion Energy Research Center (IFERC), (b)Engineering Validation and Engineering Design Activities ofthe International Fusion Material Irradiation Facility(IFMIF/EVEDA), and (c) the Satellite Tokamak Program(STP). Topic 4-4 reports the progress made on the IFERC
project. Topic 4-5 describes the results achieved along withthe researches related to IFMIF/EVEDA. In STP, theconstruction activities of JT-60SA have progressed well,including the design and manufacture of components(Topics 4-6, 4-7, 4-8).
Fusion plasma research
Analysis of JT-60 experimental data has been performed
and inter-machine experiments have been conducted for the
purpose of achieving high economical efficiency of fusion
reactor by attaining high plasma pressure. Topic 4-9 is theresult to contribute to overcoming the instability that is thedominant factor to hinder the achievement of high plasmapressure.
Fusion frontier research
In the fusion reactor, tritium is produced (breeding) fromlithium by using the neutron produced by the fusion reaction.
Topic 4-10 is intended to efficiently acquire the lithium
necessary for fuel breeding. Topic 4-11 is intended to obtain
results that will form the basis for controlling the plasma in a
DEMO reactor.
JAEA R&D Review 201253