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Simulation code for the D- beam transport through the ITER neutralizer

T. MINEA1,* , A. LIFSCHITZ1, G. MAYNARD1, K. KATSONIS1, J. BRETAGNE1, A. SIMONIN2

Affiliation

  1. Laboratoire de Physique des Gaz et Plasmas – LPGP Université Paris Sud XI, Bat. 210, 91405 Orsay Cedex, France
  2. DRFC, CEA Cadarache, 13108 Saint-Paul lez Durance, France

Abstract

This paper reports the first results on the negative ions beam transport through the ITER neutralizer by the recently developed numerical tool OBI-2 (Orsay Beam Injector, two dimensional code) based on the Particle-in-Cell approach coupled with the Monte Carlo treatment of collisions. The choice of the elementary processes involved in the D- / D2 interaction are discussed as well as the related plasma/wall processes. The latter dominates over the interaction between particles composing the residual weakly ionized plasma. The formation of the residual plasma is demonstrated and its role on the beam transport is emphasized..

Keywords

Additional heating in ITER, Negative ions, High energy neutral beam, Particle-in-Cell.

Submitted at: March 1, 2008
Accepted at: July 10, 2008

Citation

T. MINEA, A. LIFSCHITZ, G. MAYNARD, K. KATSONIS, J. BRETAGNE, A. SIMONIN, Simulation code for the D- beam transport through the ITER neutralizer, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 1899-1903 (2008)