Flux of D<sup>+</sup> ions with pléiade

Bardet, R.; Consoli, T.; Consolino, J.; Geller, R.; Gormezano, C.; Jacquot, B.

doi:10.1088/0029-5515/6/3/010

Cited by 4 publications

(3 citation statements)

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“…To allow for electrostatic effects in the study of the individual trajectories, the concept of tensorial mass was introduced by T. Consoli [1,3]; if the injected beam is cold and remains quasi-neutral, the velocity of the electrons along Bo is proportional to the ion velocity, so that the inertia of the electron is proportional to that of the ion in the axial motion. The proportionality coefficient is equal to the ratio of the ion and electron fluxes: m l( =mi Fi /F e ; m x = m.…”

Section: General Considerationsmentioning

confidence: 99%

“…Let us now consider the question of individual motion. As numerical calculations have shown [3,5], there is an 'acceleration region' in which the energy of gyration of the electrons increases substantially and a 'quasi-adiabatic region' where the energy of axial motion increases while the total kinetic energy and the magnetic moment of the particles are on an average maintained.…”

Section: General Considerationsmentioning

confidence: 99%

“…Let us first assume that < p ~ T 3 . if 6Z and NZ are negligible compared with unity in the resonance zone, the integral <P(r) is of the Airy type and we find [15] expig 2…”

Section: Relativistic and Doppler Effectmentioning

confidence: 99%

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Gyroresonant particle acceleration in a non-uniform magnetostatic field

Canobbio¹

1969

Nucl. Fusion

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Particle motion in inhomogeneous magnetostatic and high-frequency fields at the gyroresonance is studied in the limit of a large number of particle revolutions in the resonance region. The role played by the magnetic mirror, Doppler and relativistic effects, wave attenuation and radiation pressure on particle acceleration is discussed. The time dependence of the orbital magnetic flux, the velocity along the magnetic lines of force and the width of the resonance region are calculated. An upper limit is found for the energy of the particle, when the effect of the magnetic field of the wave partially compensates for the change in mass with energy. The non-linear method we use is exact in the limit of many revolutions. It generalizes the results established by C.S. Roberts and S.J. Buchsbaum in a special case, to the more complex situation proposed by T. Consoli for injecting, accelerating and confining a hot plasma in a magnetic trap. A number of numerical examples are presented for various conditions. The energy transfer to the particles at the parametric resonances is also investigated. The space charge field which develops along the magnetic lines of force in a plasma accelerating structure is taken into account in the equations from the very beginning by assuming (Consoli) that the electron guiding centres move with the velocity of the ions.

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Section: General Considerationsmentioning

confidence: 99%

Section: General Considerationsmentioning

confidence: 99%

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Gyroresonant particle acceleration in a non-uniform magnetostatic field

Canobbio¹

1969

Nucl. Fusion

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Electromagnetic Instability in an Electron Cyclotron Resonance Plasma

Gitomer

1970

The Physics of Fluids

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An electron cyclotron resonance plasma was produced in a magnetic mirror field. Measurements of electron density, electron temperature, stored energy density, electron energy distribution, plasma light variations, and particle fluxes were made. An instability characterized by microwave emission below the electron cyclotron frequency, bursts of high-energy x-rays, particle losses along the magnetic axis, and variations in stored energy density was observed. The dispersion relation for transverse electromagnetic waves propagating in a plasma with an anisotropic Maxwellian electron velocity distribution with loss cones was solved numerically using parameters characteristic of this experiment and was found to yield instability frequencies and growth rates which agreed well with those observed.

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Absorption of high frequency electromagnetic waves in a magnetoplasma

Ferrari

McQuade

LaHaye

1977

The Physics of Fluids

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Measurements of strong absorption of high frequency (ω≃ωc, ω/2π=2.45 GHz electromagnetic waves in a plasma (ωp2/ω2=2.7) are reported. The absorption is almost complete; the transmitted power is less than 0.1% and the reflected power is less than 5%. Coincident with the onset of strong absorption is the appearance of microwave energy in the plasma in two frequency bands, and an increase in the electron temperature (from 6 to 10 eV). One frequency band is close to the plasma frequency (ωp/2π≃4 GHz); the second is a low frequency band below 2 GHz. These modes are identified as being of the Gould–Trivelpiece type. Wave amplitude, combined with transmitted and reflected power measurements, suggest that 95% or more of the incident energy may be converted into the low frequency modes which are trapped in the plasma and thus can be dissipated via resistive absorption.

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Flux of D⁺ ions with pléiade

Cited by 4 publications

References 1 publication

Gyroresonant particle acceleration in a non-uniform magnetostatic field

Gyroresonant particle acceleration in a non-uniform magnetostatic field

Electromagnetic Instability in an Electron Cyclotron Resonance Plasma

Absorption of high frequency electromagnetic waves in a magnetoplasma

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Flux of D+ ions with pléiade

Cited by 4 publications

References 1 publication

Gyroresonant particle acceleration in a non-uniform magnetostatic field

Gyroresonant particle acceleration in a non-uniform magnetostatic field

Electromagnetic Instability in an Electron Cyclotron Resonance Plasma

Absorption of high frequency electromagnetic waves in a magnetoplasma

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Product

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Flux of D⁺ ions with pléiade