Plasma centrifuge for separation of metal elements and isotopes

Ikehata, Takashi; Oohashi, Kiyokazu; Sato, Naoyuki; Tanabe, Toshio; Mase, Hiroshi

doi:10.1016/0168-583x(92)95904-6

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…On the industrial scale, for uranium enrichment, for example, standards techniques require an enormous amount of energy and many cascade stages, making these processes costly; however, they are able to enrich a large amount of matter. On the other hand, to produce small quantities of pure isotopes, electromagnetic devices such as a Calutron and plasma separation process using ion cyclotron resonance (ICR) heating [1][2][3][4][5][6][7][8][9][10] are preferred but they do suffer of a very low throughout.…”

Section: Introductionmentioning

confidence: 99%

Autoresonant ion cyclotron isotope separation

2007

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A new isotope separation process based on selective cyclotron resonant interaction between ions and a tapered helicoidal magnetic structure is identified, analyzed, and evaluated. On the basis of a Hamiltonian analysis, the existence of a class of tapered magnetic modulation that provide a full conversion of linear momentum into angular momentum is discovered. The characteristics and parameters of this field configuration are analyzed and described. The dynamic of the nonresonant isotope is investigated in order to set up a separation criterion. This autoresonant ion cyclotron isotope separation mechanism provides an efficient alternative to other niches of enrichment process.

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Section: Introductionmentioning

confidence: 99%

Autoresonant ion cyclotron isotope separation

2007

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Plasma mass separation

2018

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This tutorial describes mechanisms for separating ions in a plasma device with respect to their atomic or molecular mass for practical applications. The focus here is not on separating isotopes of a single atomic species but rather on systems with a much lower mass resolution and a higher throughput. These separation mechanisms include ion gyro-orbit separation, drift-orbit separation, vacuum arc centrifugation, steady-state rotating plasmas, and several other geometries. Generic physics issues are discussed such as the ion charge state, neutrals and molecules, collisions, radiation loss, and electric fields and fluctuations. Generic technology issues are also discussed such as plasma sources and ion heating, and suggestions are made for future research.

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Simulation of dynamics of rotating weakly ionized plasmas

Wong,

Lee,

Lee

2024

Physics of Plasmas

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In this paper, we present a simulation study on the generation of rotating gas in a cylindrical chamber, which contains weakly ionized gas with charge to neutral density ratio (10−6−10−3). In this chamber, a radial current component of current density, Jr, is driven by an external electric potential difference between the inner and the outer radial boundaries, and a static magnetic field B0 is imposed in the axial direction. The charged particles are accelerated in the azimuthal direction by the Lorentz force Jr×B0. The neutrals then gain an azimuthal acceleration through ion–neutral collisions. The centrifugal force increases as the azimuthal speed increases. In the simulation, a strong centrifugal acceleration of 1011 m/s2 is achieved with an azimuthal speed of 105 m/s. A density gradient is developed to balance the centrifugal force, and the density at the outer radial boundary can reach 1025−1026 m−3.

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Plasma centrifuge for separation of metal elements and isotopes

Cited by 4 publications

References 9 publications

Autoresonant ion cyclotron isotope separation

Autoresonant ion cyclotron isotope separation

Plasma mass separation

Simulation of dynamics of rotating weakly ionized plasmas

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