Concept

Magnetic mirror

Related publications (184)

Fast single loop diamagnetic measurements on the TCV tokamak

Measurement of the plasma generated diamagnetic flux on tokamak a configuration variable (TCV) is used to derive the plasma pressure, as on other magnetic confinement experiments. However, specificities of the device make the measurement more difficult: fo ...

2003

Retarding field energy analyzer for the JET plasma boundary

René Chavan, Richard Pitts

Retarding field analyzers (RFAs) are essentially the only practical tool with which to measure the distribution of ion energies in the boundary plasma of magnetic fusion devices. The technique has long been attempted in such facilities with varying degrees ...

2003

A new class of quasi-omnigenous configurations

Wilfred Anthony Cooper

An approximation to a quasi-omnigenous structure of the magnetic field strength has been numerically obtained by optimization of the magnetic configuration of a conventional heliotron/torsatron. This configuration shows very good collisionless confinement ...

2003

Overview of recent experimental results on MAST

Olivier Sauter, Yong Yang

The low aspect ratio of the mega amp spherical tokamak (MAST) allows differentiation between different forms of the H-mode threshold scaling. With optimized fuelling using inboard puffing, and a connected double null divertor (DND) magnetic configuration, ...

2003

Present and perspective roles of soft X-ray tomography in tokamak plasma position measurements

Basil Duval, Jonathan Bryan Lister, Jan Horacek

This paper shows the importance and feasibility of real-time tomography in fusion experiments for the example of soft X-ray (SXR) position measurements. The requirement of non-magnetic real-time diagnostics in low frequencies for ITER is discussed. This is ...

2003

Overview of ASDEX upgrade results

Olivier Sauter, Timothy Goodman, Dávid Wágner, Hartmut Zohm, Emanuele Poli, Giovanni Tardini

Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a 'critical gradient' model for the temperature gradients. Coupling this to particle di ...

2003

Structural and magnetic instabilities of La2-xSrxCaCu2O6

Henrik Moodysson Rønnow

A neutron-scattering study of nonsuperconducting La2-xSrxCaCu2O6 (x=0 and 0.2), a bilayer copper oxide without CuO chains, has revealed an unexpected tetragonal-to-orthorhombic transition with a doping dependent transition temperature. The predominant stru ...

2002

Anderson localization of ballooning modes, quantum chaos and the stability of compact quasiaxially symmetric stellarators

Wilfred Anthony Cooper

The radially local magnetohydrodynamic (MHD) ballooning stability of a compact, quasiaxially symmetric stellarator (QAS), is examined just above the ballooning beta limit with a method that can lead to estimates of global stability. Here MHD stability is a ...

2002

Radial electric fields and global electrostatic microinstabilities in tokamaks and stellarators

Olivier Sauter, Laurent Villard, Alberto Bottino

The effects of applied radial electric fields on the stability of ion temperature gradient (ITG) modes and trapped particle modes are investigated with a full radius gyrokinetic formulation in both axisymmetric and helically symmetric configurations. The v ...

2002

Recent advances in the design of quasiaxisymmetric stellarator plasma configurations

Wilfred Anthony Cooper

Strategies for the improvement of quasiaxisymmetric stellarator configurations are explored. Calculations of equilibrium flux surfaces for candidate configurations are also presented. One optimization strategy is found to generate configurations with impro ...

2001

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