Magnetized Target Fusion with a Spherical Tokamak

  title={Magnetized Target Fusion with a Spherical Tokamak},
  author={Michel Laberge},
  journal={Journal of Fusion Energy},
  • M. Laberge
  • Published 14 August 2018
  • Physics
  • Journal of Fusion Energy
With good confinement and relatively high beta (up to 40%), the spherical tokamak could be a suitable magnetized target. To illustrate this potential, the theoretical fusion yield from compressing a spherical tokamak adiabatically to fusion conditions is calculated. While it is found that the large amount of energy stored in the compressed toroidal field constrains the potential energy gain, a system can be designed to produce significant useful output by directly recovering a large fraction of… 

Stable compression of a spherical tokamak plasma

An analysis of toroidal plasma compression by a collapsing flux conserver reveals linearly stable scenarios of operation to high compression ratios. The resistive and ideal MHD stability is

Magnetic levitation and compression of compact tori

The magnetic compression experiment at General Fusion was a repetitive non-destructive test to study plasma physics applicable to Magnetic Target Fusion compression. A compact torus (CT) is formed

A stable corridor for toroidal plasma compression

A toroidal plasma compressed by a collapsing flux conserver is analyzed to reveal stable scenarios of operation to high compression ratios. The resistive and ideal MHD stability is calculated in full

Experimental characterization of a section of a spherically imploding plasma liner formed by merging hypersonic plasma jets

We report experimental results on merging of hypersonic plasma jets, which is the fundamental building block for forming spherically imploding plasma liners as a potential standoff compression driver

Fusion gain from cylindrical liner-driven implosions of field reversed configurations

MagLIF experiments [M.R. Gomez et al., Phys. Plasmas 22, 056306 (2015)] on Z have demonstrated the basic principles of Magneto-Inertial Fusion (MIF) for wall confined plasmas. Other MIF schemes have

Novel Technological Developments with Impacts on Perspectives for Mobile Nuclear Power Plants

New research developments suggest that nuclear reactors using fusion may enter the market sooner than imagined even for mobile applications, like merchant ship propulsion and remote power generation.

The commercialisation of fusion for the energy market: a review of socio-economic studies

Progress in the development of fusion energy has gained momentum in recent years. However, questions remain across key subject areas that will affect the path to commercial fusion energy. The purpose

Magnetohydrodynamics Solver for a Two-Phase Free Surface Flow Developed in OpenFOAM

A magnetohydrodynamics solver (“mhdCompressibleInterFoam”) has been developed for a compressible two-phase flow with a free surface by extending “compressibleInterFoam” solver within OpenFOAM suite.

Forging Stars: The Technology Behind Fusion Power



Formation and steady-state sustainment of a tokamak by coaxial helicity injection

A possible method for steady-state sustainment of a tokamak through coaxial helicity injection is presented. To keep the toroidal flux constant, two insulators are used, one that injects and one that

High beta tokamak operation in DIII-D limited at low density/collisionality by resistive tearing modes

The maximum operational high beta in single-null divertor (SND) long pulse tokamak discharges in the DIII-D tokamak with a cross-sectional shape similar to the proposed International Thermonuclear

High performance discharges and capabilities in alcator C-Mod

Alcator C-Mod is a compact, diverted, shaped, high magnetic field (B = 9 T) tokamak operating at the Massachusetts Institute of Technology Plasma Fusion Center. The machine interior is all metallic,

Review of the NRL Liner Implosion Program

For the past several years, the Naval Research Laboratory has been investigating the use of imploding liner magnetic flux compression techniques to achieve high energy densities. Of particular

Density limits in toroidal plasmas

In addition to the operational limits imposed by MHD stability on plasma current and pressure, an independent limit on plasma density is observed in confined toroidal plasmas. This review attempts to

Assessment of the slowly-imploding liner (LINUS) fusion reactor concept

Prospects for the slowly-imploding liner (LINUS) fusion reactor concept are reviewed. The concept envisages the nondestructive, repetitive and reversible implosion of a liquid-metal cylindrical

MHD beta limits: scaling laws and comparison with Doublet III data

Simple scaling laws for the ideal-MHD β-limit (βc) as a function of plasma shape parameters (inverse aspect ratio ε, elongation κ, and triangularity δ) in the range covered by recent high-β (≤ 4.5%)