Design of plasma chamber for IGNITOR tokamak

Author

Cucchiaro, A. ; Bianchi, A. ; Capriccioli, A. ; Celentano, G. ; Crescenzi, C. ; Frosi, P. ; Linari, M. ; Lucca, F. ; Marin, A. ; Mazzone, G. ; Parodi, B. ; Pizzuto, A. ; Zanotelli, G. ; Ramogida, G. ; Roccella, M. ; Sanguinetti, G.P.

Author_Institution

Associazione ENEA-Euratom sulla Fusione, Frascati, Italy

fYear

2003

fDate

14-17 Oct. 2003

Firstpage

148

Lastpage

151

Abstract

The new reference plasma disruption for IGNITOR produces a significant increase of electromagnetic (EM) loads requiring a dynamic elastic-plastic structural analysis of the IGNITOR plasma chamber (PC). A 30° sector of PC has been modeled. Static and dynamic analyses under the EM loads produced (by eddy and halo currents) during the reference disruption have been performed. It is shown that a PC wall thickness optimization allows for a displacement compatible with toroidal coil interference. The possibility of mitigating the disruption effects, by adding toroidal copper layers to the PC, has been also investigated showing that a benefit up to 20% in the EM loads could be achieved.

Keywords

Tokamak devices; copper; eddy currents; elastoplasticity; fusion reactor design; fusion reactor materials; fusion reactor reaction chamber; plasma electromagnetic wave propagation; plasma instability; plasma toroidal confinement; Cu; IGNITOR tokamak; dynamic elastic-plastic structural analysis; eddy current; electromagnetic loads; halo current; plasma chamber design; plasma chamber wall thickness; plasma disruption; reference disruption; static analysis; toroidal coil interference; toroidal copper layers; Capacitive sensors; Copper; Damping; Performance analysis; Plasma materials processing; Plasma properties; Plasma temperature; Plasma welding; Plastics; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 2003. 20th IEEE/NPSS Symposium on

Print_ISBN

0-7803-7908-X

Type

conf

DOI

10.1109/FUSION.2003.1426609

Filename

1426609