Kinetic Modelling of Detached and ELMy SOL Plasmas

Batishchev, Oleg; Xu, X. Q.; Byers, J. A.; Cohen, R. H.; Krasheninnikov, S. I.; Rognlien, T. D.; Sigmar, D. J.

doi:10.1002/ctpp.2150360223

Cited by 8 publications

(7 citation statements)

References 5 publications

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“…double Maxwell-averaged V 1 V 2 σ T BR (E 1 , E 2 , n) obtained from Eqs. (11,12,13), showing good agreement with the existing data from [20]. In Fig.…”

Section: Radiative Recombinationsupporting

confidence: 83%

“…Charged and neutral particles are treated in 1D and 2D, respectively. Inside the system there is a plasma (electron and D + ion) and heat source corresponding to the cross-separatrix transport of plasma (see [12]). We consider different C sputtering coefficients, γ C = 0.01, 0.08, and different n max = 0, 8, 15, 20 for TB recombination (n max = 0 correspond to the case without recombination).…”

Section: Pic Simulationsmentioning

confidence: 99%

“…The cross-separatrix particle and heat fluxes are 7.64 × 10 22 particle/s/m 2 and 2.2 − 3.6 MW/m 2 , respectively. The latter depends on upstream density and temperature profiles and can not be exactly controlled [12].…”

Section: Pic Simulationsmentioning

confidence: 99%

“…One of the possible explanations is the influence of kinetic effects, which might play dominant role in the detachment [8,9]. Existing kinetic models of the detached plasmas are too simplified: the detachment is reached by artificially applied radial electric field [10], random removing of plasma particles in the divertor region, mimicking the plasma recombination [11], and even neglecting plasma recombination at all [12].…”

Section: Introductionmentioning

confidence: 99%

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Kinetic Modelling of the Plasma Recombination

Tskhakaya

2016

Contrib. Plasma Phys.

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“…double Maxwell-averaged V 1 V 2 σ T BR (E 1 , E 2 , n) obtained from Eqs. (11,12,13), showing good agreement with the existing data from [20]. In Fig.…”

Section: Radiative Recombinationsupporting

confidence: 83%

Section: Pic Simulationsmentioning

confidence: 99%

Section: Pic Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Kinetic Modelling of the Plasma Recombination

Tskhakaya

2016

Contrib. Plasma Phys.

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“…Results from kinetic modelling [95,96] show that in this phase the distribution function is unable to equilibrate. One gets an elevated tail and a much larger heat conduction coefficient (factor of ten compared with the Maxwellian value) in the region between the heat front and the target.…”

Section: Limitationsmentioning

confidence: 96%

Plasma Edge Physics with B2‐Eirene

Schneider

Bonnin

Borraß

et al. 2006

Contrib. Plasma Phys.

484

426

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The B2‐Eirene code package was developed to give better insight into the physics in the scrape‐off layer (SOL), which is defined as the region of open field‐lines intersecting walls. The SOL is characterised by the competition of parallel and perpendicular transport defining by this a 2D system. The description of the plasma‐wall interaction due to the existence of walls and atomic processes are necessary ingredients for an understanding of the scrape‐off layer. This paper concentrates on understanding the basic physics by combining the results of the code with experiments and analytical models or estimates. This work will mainly focus on divertor tokamaks, but most of the arguments and principles can be easily adapted also to other concepts like island divertors in stellarators or limiter devices. The paper presents the basic equations for the plasma transport and the basic models for the neutral transport. This defines the basic ingredients for the SOLPS (Scrape‐Off Layer Plasma Simulator) code package. A first level of understanding is approached for pure hydrogenic plasmas based both on simple models and simulations with B2‐Eirene neglecting drifts and currents. The influence of neutral transport on the different operation regimes is here the main topic. This will finish with time‐dependent phenomena for the pure plasma, so‐called Edge Localised Modes (ELMs). Then, the influence of impurities on the SOL plasma is discussed. For the understanding of impurity physics in the SOL one needs a rather complex combination of different aspects. The impurity production process has to be understood, then the effects of impurities in terms of radiation losses have to be included and finally impurity transport is necessary. This will be introduced with rising complexity starting with simple estimates, analysing then the detailed parallel force balance and the flow pattern of impurities. Using this, impurity compression and radiation instabilities will be studied. This part ends, combining all the elements introduced before, with specific, detailed results from different machines. Then, the effect of drifts and currents is introduced and their consequences presented. Finally, some work on deriving scaling laws for the anomalous turbulent transport based on automatic edge transport code fitting procedures will be described. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Kinetic modeling of SOL plasmas in tokamaks

Batishchev

1998

Contrib. Plasma Phys.

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Kinetic Modelling of Detached and ELMy SOL Plasmas

Cited by 8 publications

References 5 publications

Kinetic Modelling of the Plasma Recombination

Kinetic Modelling of the Plasma Recombination

Plasma Edge Physics with B2‐Eirene

Kinetic modeling of SOL plasmas in tokamaks

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