Simulation techniques for heavy ion fusion chamber transport

Welch, D. R.; Rose, D. V.; Oliver, B.V.; Clark, Robert E.

doi:10.1016/s0168-9002(01)00024-9

Cited by 243 publications

(100 citation statements)

References 10 publications

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“…On the other hand the streaming of the moderately heavy ions relative to the background plasma can cause the development of fast electrostatic collective instabilities between beam ions and background electrons [2]. As demonstrated numerically in this paper using the particle-in-cell code LSP [3], the nonlinear stage of these instabilities produces fluctuating electrostatic fields which cause a significant drag on the background plasma electrons and result in producing local current densities which may significantly exceed the beam current density [4]. These overneutralizing background electron current densities reverse the beam self-magnetic field and lead to beam transverse defocusing.…”

Section: Introductionmentioning

confidence: 72%

Nonlinear effects of beam-plasma instabilities on neutralized propagation of intense ion beams in background plasma

Startsev

Kaganovich

Davidson

2013

EPJ Web of Conferences

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Abstract. The streaming of an intense ion beam relative to the background plasma can cause the development of fast electrostatic collective instabilities. In this paper we examine numerically the defocusing effects of two-stream instability on the ion beam propagating in neutralizing background plasma. The scaling laws for the average de-focusing forces on the beam ions are identified, and confirmed by comparison with numerical simulations. These scalings can be used in the development of realistic ion beam compression scenarios in present and next-generation ion-beam-driven experiments.

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Section: Introductionmentioning

confidence: 72%

Nonlinear effects of beam-plasma instabilities on neutralized propagation of intense ion beams in background plasma

Startsev

Kaganovich

Davidson

2013

EPJ Web of Conferences

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“…X-ray emission indicate that the plasmas have n e ~ 10 20 -10 22 /cm 3 and T e ~1 keV. The experiments were modeled with the 2-dimensional LASNEX hydrocode [23], while the proton transport through the plasmas was modeled with the LSP hybrid PIC code [24]. Because only a single energy (14.7 MeV) was used, directly comparing simulations and experimental data provides unambiguous quantitative information about fields.…”

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confidence: 99%

MeasuringEandBFields in Laser-Produced Plasmas with Monoenergetic Proton Radiography

et al. 2006

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“…Simulations using the LSP code [22][23][24] were carried out to provide an independent validation of the theoretical results. LSP is a hybrid particle-in-cell simulation code, run here with a nonrelativistic inertial fluid electron component and two distinct kinetic particle ion species.…”

Section: Prl 113 145001 (2014) P H Y S I C a L R E V I E W L E T T Ementioning

confidence: 99%

Nonlinear Structure of the Diffusing Gas-Metal Interface in a Thermonuclear Plasma

et al. 2014

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This Letter describes the theoretical structure of the plasma diffusion layer that develops from an initially sharp gas-metal interface. The layer dynamics under isothermal and isobaric conditions is considered so that only mass diffusion (mixing) processes can occur. The layer develops a distinctive structure with asymmetric and highly nonlinear features. On the gas side of the layer the diffusion coefficient goes nearly to zero, causing a sharp "front," or well defined boundary between mix layer and clean gas with similarities to the Marshak thermal waves. Similarity solutions for the nonlinear profiles are found and verified with full ion kinetic code simulations. A criterion for plasma diffusion to significantly affect burn is given.

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Simulation techniques for heavy ion fusion chamber transport

Cited by 243 publications

References 10 publications

Nonlinear effects of beam-plasma instabilities on neutralized propagation of intense ion beams in background plasma

Nonlinear effects of beam-plasma instabilities on neutralized propagation of intense ion beams in background plasma

MeasuringEandBFields in Laser-Produced Plasmas with Monoenergetic Proton Radiography

Nonlinear Structure of the Diffusing Gas-Metal Interface in a Thermonuclear Plasma

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