Optimization of the Accelerators for the ITER Neutral Beam Injector Project

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概要

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• A joint Japan-EU R&D activity is in progress to optimize the accelerator for the ITER NBI. The accelerator baseline design is based on a five grids system which can be adapted to operate with three grids for initial operations at low voltage (500 kV). Moreover, in order to speed up the test of the NBI system at the Test Facility, a negative ion source with extraction voltage up to 100 kV will be operated in parallel to the full injector. In this contribution the three accelerators mentioned above are presented discussing the procedure to optimize the grid geometry in order to assure optimum optics during operation when the grids undergo deformations and thermal stresses due to the particles that hit their surface.

著者

• Serianni Gianluigi

  Consorzio Rfx

• INOUE Takashi

  Japan Atomic Energy Research Institute

• KASHIWAGI Mieko

  Japan Atomic Energy Agency, Naka, 311-0193, Japan

• KASHIWAGI Mieko

  Japan Atomic Energy Agency (JAEA), 801-1 Mukoyama, Naka 311-0193, Japan

• ANTONI Vanni

  Consorzio RFX Euratom-ENEA Association, Padova, 35126, Italy

• AGOSTINETTI Piero

  Consorzio RFX Euratom-ENEA Association, Padova, 35126, Italy

• CAVENAGO Marco

  INFN-LNL, Legnaro, 35020, Italy

• P. L.

  Association EURATOM-CEA Cadarache, IRFM/SCCP, St. Paul Les Durance, 13108, France

• FUBIANI Gwenael

  LAPLACE/CNRS, University Paul Sabatier, Toulouse, 31062, France

• PILAN Nicola

  Consorzio RFX Euratom-ENEA Association, Padova, 35126, Italy

• VELTRI Pierluigi

  Consorzio RFX Euratom-ENEA Association, Padova, 35126, Italy

• TANIGUCHI Masaki

  Japan Atomic Energy Agency, Naka, 311-0193, Japan

• UMEDA Naotaka

  Japan Atomic Energy Agency, Naka, 311-0193, Japan

• TEAM NBI

  Consorzio RFX Euratom-ENEA Association, Padova, 35126, Italy

• SERIANNI Gianluigi

  Consorzio RFX Euratom-ENEA Association, Padova, 35126, Italy

• UMEDA Naotaka

  Japan Atomic Energy Agency (JAEA), 801-1 Mukoyama, Naka 311-0193, Japan

関連論文

• Optimization of the Accelerators for the ITER Neutral Beam Injector Project
• Correlation Studies on Fast Electrons and Dynamo-Related Activities in a Reversed-Field Pinch Plasma
• Correlation between Negative Hydrogen Ion Production and Work Function of Plasma Grid Surface in a Cesium-Introduced Volume-Production-Type Negative Hydrogen Ion Source
• Three-Dimensional Analysis of Beamlet Deflection in a MeV Accelerator for ITER NBI
• Morphology of Foretarsal Ventral Surfaces of Japanese Papilio Butterflies and Relations Between These Morphology, Phylogeny and Hostplant Preferring Hierarchy(Morphology)
• Mechanism of Negative Ion Production in a Cesium Seeded Ion Source
• Correlation between Negative Hydrogen Ion Production and Work Function of Plasma Grid Surface in a Cesium-Introduced Volume-Production-Type Negative Hydrogen Ion Source
• 2D Tomographic Imaging of the Edge Turbulence in RFX-Mod
• Numerical Study of the H0 Atomic Density and the Balmer Line Intensity Profiles in a Hydrogen Negative Ion Source with the Effect of Non-Equilibrium Electron Energy Distribution Function

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