ICRF heating scenarios for the IGNITOR machine

Riccitelli, M.; Vecchi, Giuseppe; Maggiora, Riccardo; Phillips, C. K.; Majeski, R.; Wilson, J. R.; Smithe, D. N.

doi:10.1016/s0920-3796(98)00424-4

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…The RF system will use up to six of the twelve large horizontal ports, and is being designed to operate in a frequency range between 70 and 120 MHz, to allow either H or 3 He minority heating in all the envisaged operating scenarios. According to the results reported in [11], the D( 3 He) scheme is suitable for high field operation in DT plasmas. Absorption effects by the fusion α-particles have been considered and found to be negligible.…”

Section: Rf Assisted Regimes and Burn Controlmentioning

confidence: 97%

Ignitor: physics and progress towards ignition

Bombarda¹,

Coppi²,

Airoldi³

et al. 2004

Braz. J. Phys.

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Thermonuclear ignition condition for deuterium-tritium plasmas can be achieved in compact, high magnetic field devices such as Ignitor. The main scientific goals, the underlying physics basis, and the most relevant engineering solutions of this experiment are described. Burning plasma conditions can be reached either with ohmic heating only or with small amount of auxiliary power in the form of ICRH waves, and this condition can be sustained for a time considerably longer than all the relevant plasma time scales. In the reference operating scenario, no transport barriers are present, and the resulting thermal loads on the plasma facing component are estimated to be rather modest, thanks to the high edge density and low edge temperature that ensure an effective intrinsic radiating mantle in elongated limiter configurations. Enhanced confinement regimes can also be obtained in configurations with double X-points near the first wall.

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Section: Rf Assisted Regimes and Burn Controlmentioning

confidence: 97%

Ignitor: physics and progress towards ignition

Bombarda¹,

Coppi²,

Airoldi³

et al. 2004

Braz. J. Phys.

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Thermo-mechanical analysis of the ICRH antenna for the ignitor experiment

Salvetti

Berruti

Gola

2005

Fusion Engineering and Design

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Channeling of Fusion Alpha-Particle Power Using Minority Ion Catalysis

Zhmoginov

Fisch

2011

Phys. Rev. Lett.

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Maintaining fuel ions hotter than electrons would greatly facilitate controlled nuclear fusion. The parameter range for achieving this temperature disparity is shown here to be enhanced by catalyzing the α-channeling effect (wave-induced simultaneous expulsion and cooling of α particles) through minority ion heating. Specifically, a wave can extract energy from hot α particles and transfer it to colder minority ions, which act as a catalyst, eventually forwarding the energy to still colder fuel ions through collisions. In comparison with the traditional α-channeling mechanism, the requirements are thereby relaxed on the waves that accomplish the α-channeling, which no longer have to interact simultaneously with α particles and fuel ions. Numerical simulations illustrate how the new scheme may increase, for example the effective fusion reactivity of mirror-confined plasmas.

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ICRF heating scenarios for the IGNITOR machine

Cited by 3 publications

References 7 publications

Ignitor: physics and progress towards ignition

Ignitor: physics and progress towards ignition

Thermo-mechanical analysis of the ICRH antenna for the ignitor experiment

Channeling of Fusion Alpha-Particle Power Using Minority Ion Catalysis

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