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Systems and methods for plasma containment

A plasma, plasma technology, applied in the field of ion confinement, can solve expensive and complex problems

Inactive Publication Date: 2007-05-30
UTAH STATE UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

Thus, such large equipment and various support elements can be complex and / or expensive to operate in common applications

Method used

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  • Systems and methods for plasma containment
  • Systems and methods for plasma containment
  • Systems and methods for plasma containment

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Embodiment Construction

[0036] The present invention generally relates to systems and methods for plasma confinement in relatively stable equilibrium. In one aspect, such plasmas include a substantial internal electrostatic field that promotes stabilization and confinement of the plasma.

[0037] FIG. 1 shows a confined plasma 100 enclosed by a confinement system 112 . The plasma 100 defines a first region 102 substantially bounded by a boundary 106 and a second region 104 substantially bounded by an inner boundary 106 and a boundary of the plasma. Plasma 100 has at least one dimension of the order of L as indicated by arrow 110 .

[0038] For purposes of description, the plasma 100 is characterized as a two-fluid system with electron flow and ion flow. It is understood that the ion flux may include ions based on the same or different elements and / or isotopes. It can also be understood that the collective fluid equations here for characterizing plasmas are just one way to describe plasmas, and are...

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Abstract

An apparatus (12) and method for plasma containment is disclosed. A stable equilibrium of a plasma (100) is determined by varying the system energy subject to Maxwell's equations, momentum moment equations, and adiabatic equations of state, without imposing a quasi-neutrality condition. In one embodiment, electrons are confined by magnetic forces and ions by internal, electrostatic forces that arise due to charge separation of the two fluids. In one embodiment, input parameters for the energy variation process are selected so as to satisfy a plasma beta parameter condition, thereby reducing the number of control variables by one. The radial scale length for cylindrically symmetric plasmas in one-dimensional equilibrium is characterized by the electron skin depth. Such plasmas can be confined as a high aspect ratio toroid having compact dimensions. Applications of the compact plasma fusion devices include neutron generation, x-ray generation, and power generation.

Description

technical field [0001] The present invention relates generally to the field of plasma containment and, more particularly, to a system and method for establishing a stable plasma within a relatively compact confinement cavity. Background technique [0002] Nuclear fusion occurs when two smaller-mass nuclei fuse to produce a larger-mass nucleus and the reaction products. Because a substantial amount of energy is related to the reaction products, controlled nuclear fusion research is an ongoing process with efficient energy generation as one of the important goals. To produce fusion, two nuclei need to interact at the energy level of the nuclei after overcoming the Coulomb barrier of mutual repulsion. Different methods can be employed to facilitate this interaction. [0003] A widely adopted method of promoting the fusion process is to provide a mass of plasma with sufficient density and temperature of fusible ions. This plasma needs to be confined long enough for fusion rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21B1/05H05G2/00H05H1/02H05H3/06
CPCY02E30/126H05H1/02G21B1/05H05G2/003H05H3/06Y02E30/10
Inventor W·法瑞尔·爱德华斯艾瑞克·赫尔德
Owner UTAH STATE UNIVERSITY
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