Publication

Experimental and theoretical stability limits of highly elongated tokamak plasmas

Olivier Sauter, Antoine Pochelon, Ivo Furno, Holger Reimerdes
1998
Journal Articles

Abstract

Stability limits of highly elongated, D-shaped plasmas have been measured in the TCV (tokamak a configuration variable) tokamak. It is found that the plasma current is limited by kink-type disruptions, preceded by magnetohydrodynamic (MHD) mode activity. The mode structure has been analyzed using magnetic fluctuation and soft x-ray diagnostics. Mode numbers, growth rates, and experimental stability limits are consistent with ideal and resistive MHD models, based on measured plasma shapes and profiles. These results provide the first experimental confirmation of previously predicted stability limits at high elongation, kappa less than or equal to 2.58.

Official source

https://infoscience.epfl.ch/entities/publication/b66ebc60-0629-42d4-a58c-e63f2ab686a6

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Olivier Sauter, Antoine Pochelon, Ivo Furno, Holger Reimerdes
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/b66ebc60-0629-42d4-a58c-e63f2ab686a6

About this result

Related concepts (32)

Plasma stability

The stability of a plasma is an important consideration in the study of plasma physics. When a system containing a plasma is at equilibrium, it is possible for certain parts of the plasma to be disturbed by small perturbative forces acting on it. The stability of the system determines if the perturbations will grow, oscillate, or be damped out. In many cases, a plasma can be treated as a fluid and its stability analyzed with magnetohydrodynamics (MHD).

Tokamak

A tokamak (ˈtoʊkəmæk; токамáк) is a device which uses a powerful magnetic field to confine plasma in the shape of a torus. The tokamak is one of several types of magnetic confinement devices being developed to produce controlled thermonuclear fusion power. , it was the leading candidate for a practical fusion reactor. Tokamaks were initially conceptualized in the 1950s by Soviet physicists Igor Tamm and Andrei Sakharov, inspired by a letter by Oleg Lavrentiev. The first working tokamak was attributed to the work of Natan Yavlinsky on the T-1 in 1958.

Island of stability

In nuclear physics, the island of stability is a predicted set of isotopes of superheavy elements that may have considerably longer half-lives than known isotopes of these elements. It is predicted to appear as an "island" in the chart of nuclides, separated from known stable and long-lived primordial radionuclides. Its theoretical existence is attributed to stabilizing effects of predicted "magic numbers" of protons and neutrons in the superheavy mass region.

Related publications (32)

Experimental and theoretical stability limits of highly elongated tokamak plasmas

Chat with Graph Search

Dynamics of the Fast-ion Acceleration in Type-i Elmy H-mode Scenarios on the Tcv Tokamak

FGE: A Fast Free-Boundary Grad-Shafranov Evolutive Solver

First benchmark between the KINetic Deterministic NEutral Solver (KINDNES) and EIRENE