Forming and maintaining a potential well in a quasispherical magnetic trap

  title={Forming and maintaining a potential well in a quasispherical magnetic trap},
  author={Nicholas A. Krall and M. D. Coleman and K. C. Maffei and John Lovberg and Robert Jacobsen and Robert W. Bussard},
  journal={Physics of Plasmas},
The formation and maintenance of an electrostatic potential well by injecting electrons into a quasispherical cusped magnetic confinement geometry is studied experimentally, as a function of plasma fill density and of the energy and current of the injected electrons. A model is developed to analyze the experiment. It is found that the potential is comparable to the energy of the injected electrons at low density, and decreases as an increasing density of cold plasma fills the device because of… 

Numerical modeling of electron confinement in a multicusp magnetic trap

  • V. Klenov
  • Physics
  • 2021
A charge-exchange target for neutralizing a negative ion beam with energies up to 10 MeV and higher requires the development of a highly efficient plasma trap which allows plasma to form and be

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AbstractThe Polywell™ spherically convergent ion focus concept for controlled thermonuclear fusion is described. The device magnetically confines electrons by a quasi-spherical-cusp magnetic field,


A system in which electrons are projected radially inwards from a spherical surface, has been proposed for the confinement of a plasma at thermonuclear temperatures. The equilibrium, economics, and

Some physics considerations of magnetic inertial-electrostatic confinement: A new concept for spherical converging-flow fusion. (Reannouncement with new availability information)

A new concept for inertialelectrostatic spherical collid� ing beam fusionPolywellis based on the use of magnetohydrodynamically stable quasispherical poly� hedral magnetic fields to contain energetic

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The nonmagnetic, inertial‐electrostatic confinement of ionized gases in spherical geometry is discussed theoretically, and associated experiments are described. Assuming monoenergetic ion and

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Atomic and molecular processes

Atomic Processes and Applications.(In Honour of David R. Bate's 60th Birthday.) Edited by P. G. Burke and B. L. Moiseiwitsch. Pp. x + 533. (North-Holland: Amsterdam, New York and Oxford, 1976.)

Method and apparatus for con trolling charged particles,

  • U.S. Patent 4,826,626,
  • 1989

Bussard ; “ Method and apparatus for con trolling charged particles

  • 1989