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Rokkasho, Japan

Yamanishi T.,Japan Atomic Energy Agency | Asakura N.,Japan Atomic Energy Agency | Tobita K.,Japan Atomic Energy Agency | Ohira S.,Japan Atomic Energy Agency | And 5 more authors.
Fusion Engineering and Design | Year: 2015

The Broader Approach (BA) activities consists of three major projects: the International Fusion Energy Research Center (IFERC) project, the International Fusion Materials Irradiation Facility/Engineering Validation and Engineering Design Activities (IFMIF/EVEDA) project, and the Satellite Tokamak Programme (STP, JT-60SA). These projects have been carried out to obtain basic data for the design of DEMO fusion reactor from 2007. For 8-year activities, the above projects could produce a set of fruitful results for the DEMO reactor. DEMO design activity has been conducted to build a set of DEMO design bases in accordance with a series of discussion between EU and JA. In the DEMO R&D activities, five basic R&D subjects for a DEMO blanket system have been selected, and been studies under close collaborations between EU and JA: structure materials (RAFM steels and SiC/SiC composites), functional materials (tritium breeders and neutron multipliers), and tritium technology. Some additional R&D subjects recommended by peer review comments have also been studied successfully in recent years. Regarding the IFMIF/EVEDA project, some main components of the accelerator facility been designed and tested. The validation test using EVEDA Lithium Test Loop (ELTL) was also completed successfully in October 2014. © 2015. Source


Nishitani T.,Japan Atomic Energy Agency | Sugimoto M.,Japan Atomic Energy Agency | Ohira S.,Japan Atomic Energy Agency | Yamanishi T.,Japan Atomic Energy Agency | And 9 more authors.
Fusion Engineering and Design | Year: 2013

In Rokkasho Japan, the International Fusion Energy Research Center (IFERC) project and the International Fusion Materials Irradiation Facility/Engineering Validation and Engineering Design Activities (IFMIF/EVEDA) project are on going under the Broader Approach framework. The IFERC project consists of three sub-projects; a fusion demonstration reactor (DEMO) Design and R&D Coordination Center, a Computational Simulation Center (CSC), and an ITER Remote Experimentation Center (REC). DEMO Design activity has been conducted by the IFERC project team in Rokkasho and home teams in EU and JA. In the DEMO R&D activity, five R&D tasks mainly of the blanket materials are carried out intensively. A supercomputer with 1.23 Pflops of LINPAC performance has been installed in December 2011, the operation started in January 2012. Discussion of overall plan of REC has started in 2012 between EU and Japan. In the IFMIF/EVEDA project, an IFMIF prototype accelerator system up to 9 MeV with 125 mA CW deuteron beam will be installed and tested in Rokkasho. Major components of the accelerator are under development or fabrication in EU. The first component of the accelerator, an injector with an ECR ion source, will be delivered to Rokkasho in March 2013. © 2013 Elsevier B.V. All rights reserved. Source


Nishitani T.,Japan Atomic Energy Agency | Garin P.,CEA Cadarache Center | Sugimoto M.,BA IFMIF EVEDA Project Team | Nakajima N.,BA IFERC Project Team | And 7 more authors.
Fusion Engineering and Design | Year: 2012

In the Broader Approach framework, the International Fusion Materials Irradiation Facility/Engineering Validation and Engineering Design Activities (IFMIF/EVEDA) project, the International Fusion Energy Research Center (IFERC) project, and the Satellite Tokamak project are implemented. In the IFMIF/EVEDA project, engineering design of IFMIF and engineering R&D include the construction and tests of an IFMIF prototype accelerator system up with a 9 MeV and CW deuteron beam, a liquid lithium test loop with free surface flow, and full scale irradiation test module including temperature control instrumentation. The commissioning of the EVEDA lithium test loop was completed in March 2011, and a lithium flow of ∼5 m/s was obtained. As a part of the IFERC project, R&Ds on reduced activation ferritic/martensitic steels as blanket structural material, SiC f/SiC composites as a flow channel insert material and/or alternative structural material, advanced tritium breeders and neutron multipliers, and tritium technology are carried out. At the beginning of 2011, the integrated DEMO design team was established among the IFERC project team and EU/JA home teams, where the design criteria, other design basis are discussed as an initial work. A high performance supercomputer with the peak performance of 1.3 Pflops is under installation at the Rokkasho BA site. © 2012 Elsevier B.V. All rights reserved. Source


Nishitani T.,Japan Atomic Energy Agency | Tanigawa H.,Japan Atomic Energy Agency | Yamanishi T.,Japan Atomic Energy Agency | Lorenzo S.C.,Fusion for Energy F4E | And 8 more authors.
Fusion Science and Technology | Year: 2012

In parallel to the ITER program, the Broader Approach (BA) activities with three projects are being implemented by the European Union (EU) and Japan. Five research and development (R&D) tasks, mainly on blanketrelated materials, are being carried out as the DEMO R&D program in the BA to establish key technologies required for the DEMO engineering design. The DEMO R&D building was constructed in March 2010, and the installation of research equipment was completed in March 2011. As the BA DEMO R&D, fabrication technology and/or characterization of reduced activation ferritic/ martensitic steels, SiC/SiC composites, and the advanced neutron multiplier and advanced tritium breeder have progressed in Japan and the EU. In the Inter national Fusion Materials Irradiation Facility (IFMIF)/ Engineering Design and Engineering Validation Activities (EVEDA) project, engineering design and validations have progressed. The injector of the IFMIF prototype accelerator produced first beam successfully in May 2011 and will be delivered to the Rokkasho BA site in 2012. The commissioning of the EVEDA lithium test loop was completed in March 2011, and a lithium flow of 25 mm thick at ∼5 m/s was obtained. Source

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