Community Research and Development Information Service - CORDIS

Abstract

The design study of a 1 MV, 4 A, D(-), greater than 30 seconds test bed is being conducted by the Euratom-CEA Association (Cadarache) with support from the Euratom-UKAEA Association (Culham) and from FOM-Amsterdam. A proposal for the construction of this test bed at Cadarache will be made by the middle of next year. The options chosen for the beamline are derived from the conceptual design originally proposed one year ago, for the ITER neutral beam systems: pure volume negative ion production, electrostatic multi-stage accelerator, vertically subdivided beamline, electrostatic deflection of the ions at the neutraliser exit, HV vacuum insulation with voltage grading screens. This design has been reviewed in detail and in particular three basic topics have been carefully examined: beam acceleration, gas flow and beam transmission. This review resulted in various changes with respect to the original design, the major change being the decision to put the ion source at high voltage. In parallel to this test bed design study, the conceptual study of a 1 MV, 15 A power supply and of its protection system is being conducted by European industrial companies under the supervision of Cadarache.

Additional information

Authors: PAMELA J, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);HEMSWORTH R, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);JACQUOT C, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);HOPMAN H, FOM Institute of Atomic and Molecular Physics (NL);HOLMES A J T, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB)
Bibliographic Reference: Paper presented: IAEA Technical Committee Meeting on Negative Ion Based Neutral Beam Injector, Naka (JP), Nov. 11-13, 1991
Availability: Available from (1) as Paper EN 36475 ORA
Record Number: 199210471 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en