Community Research and Development Information Service - CORDIS


The neutral gas environment in a poloidal divertor tokamak like the international thermonuclear experimental reactor (ITER) plays an important role for the global machine performance. In order to investigate the local neutral gas dynamics with sufficient time resolution, specific neutral pressure gauges have been developed originally for ASDEX, and are now applied in modified form in most existing experiments. Application of these gauges for ITER seems to be feasible. In this paper, recent progress in gauge design and understanding is described and experimental results from several divertor tokamaks are presented. The results are used to check numerical edge-divertor codes (B2-EIRENE), which, in turn, can be applied for ITER predictions and neutral diagnostics optimization.

Additional information

Authors: HAAS G ET AL, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);DE KOCK L, ITER JCT, JWS Garching (DE);MAINGI R, Oak Ridge National Laboratory, Lockheed Martin Energy Research (US)
Bibliographic Reference: Article: Diagnostics for Experimental Thermonuclear Fusion Reactors 2 (1998) pp. 559-568
Record Number: 199811105 / Last updated on: 1998-09-28
Original language: en
Available languages: en