ERO code benchmarking of ITER first wall beryllium erosion/re-deposition against LIM predictions

Borodin, D.; Kirschner, A.; Carpentier-Chouchana, S.; Pitts, R.A.; Lisgo, S.; Björkas, C.; Stangeby, P.C.; Elder, J.D.; Galonska, Andreas; Matveev, D.; Philipps, V.; Samm, U.

doi:10.1088/0031-8949/2011/t145/014008

Cited by 40 publications

(31 citation statements)

References 18 publications

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“…We fitted the cross sections to an expression that resembles the one used in the ERO code [38][39][40] which is used for impurity transport simulations in fusion edge plasmas. The fitting expression is given by:…”

Section: Analytical Expression Of the Eicssmentioning

confidence: 99%

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Electron impact ionisation cross sections of iron oxides

et al. 2017

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Abstract. We report electron impact ionisation cross sections (EICSs) of iron oxide molecules, FexOx and FexOx+1 with x = 1, 2, 3, from the ionisation threshold to 10 keV, obtained with the Deutsch-Märk (DM) and binary-encounter-Bethe (BEB) methods. The maxima of the EICSs range from 3.10 to 9.96 × 10 −16 cm 2 located at 59-72 eV and 5.06 to 14.32 × 10 −16 cm 2 located at 85-108 eV for the DM and BEB approaches, respectively. The orbital and kinetic energies required for the BEB method are obtained by employing effective core potentials for the inner core electrons in the quantum chemical calculations. The BEB cross sections are 1.4-1.7 times larger than the DM cross sections which can be related to the decreasing population of the Fe 4s orbitals upon addition of oxygen atoms, together with the different methodological foundations of the two methods. Both the DM and BEB cross sections can be fitted excellently to a simple analytical expression used in modelling and simulation codes employed in the framework of nuclear fusion research.

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Section: Analytical Expression Of the Eicssmentioning

confidence: 99%

“…In addition to the EICSs, we also report parameters obtained by fitting the calculated cross sections to an expression commonly used in codes modelling the impurity transport in fusion edge plasmas such as ERO [38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Electron impact ionisation cross sections of iron oxides

et al. 2017

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“…We fitted the cross sections to an expression that resembles the one used in the ERO code [28][29][30] which is used for impurity transport simulations in fusion edge plasmas. The fitting expression is given by:…”

Section: Analytical Expression Of the Eicssmentioning

confidence: 99%

“…To the best of our knowledge there is no such cross section data available for iron-hydrogen clusters up to now. We also report parameters obtained by fitting the calculated cross sections to an expression commonly used in codes modelling the impurity transport in fusion edge plasmas such as ERO [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Electron impact ionisation cross sections of iron hydrogen clusters

et al. 2016

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Abstract.We computed electron impact ionisation cross sections (EICSs) of iron hydrogen clusters, FeHn with n = 1, 2, . . . , 10, from the ionisation threshold to 10 keV using the Deutsch-Märk (DM) and the binary-encounter-Bethe (BEB) formalisms. at 51 eV for the DM method. Cross sections calculated via the BEB method are substantially higher than the ones obtained via the DM method, up to a factor of about two for FeH and FeH2. The formation of Fe-H bonds depopulates the iron 4s orbital, causing significantly lower cross sections for the small iron hydrides compared to atomic iron. Both the DM and BEB cross sections can be fitted perfectly against a simple expression used in modelling and simulation codes in the framework of nuclear fusion research. The energetics of the iron hydrogen clusters change substantially when exact exchange is present in the density functional, while the cluster geometries do not depend on this choice.

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“…[2,3,4] also predictive modelling of the life time of wall components in ITER have been performed, see e.g. [5,6]. Currently the source code is subject of a major rewriting aiming at an improved performance.…”

Section: The Ero Codementioning

confidence: 99%

Modelling of Impurity Transport and Plasma–Wall Interaction in Fusion Devices with the ERO Code: Basics of the Code and Examples of Application

Kirschner

Tskhakaya

Kawamura

et al. 2016

Contrib. Plasma Phys.

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The 3D ERO code, which simulates plasma-wall interaction and impurity transport in magnetically confined fusion-relevant devices is described. As application, prompt deposition of eroded tungsten has been simulated at surfaces with shallow magnetic field of 3 T. Dedicated PIC simulations have been performed to calculate the characteristics of the sheath in front of plasma-exposed surfaces to use as input for these ERO simulations. Prompt deposition of tungsten reaches 100% at the highest electron temperature and density. In comparison to more simplified assumptions for the sheath the amount of prompt deposition is in general smaller if the PICcalculated sheath is used. Due to friction with the background plasma the impact energy of deposited tungsten can be significantly larger than the energy gained in the sheath potential.

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ERO code benchmarking of ITER first wall beryllium erosion/re-deposition against LIM predictions

Cited by 40 publications

References 18 publications

Electron impact ionisation cross sections of iron oxides

Electron impact ionisation cross sections of iron oxides

Electron impact ionisation cross sections of iron hydrogen clusters

Modelling of Impurity Transport and Plasma–Wall Interaction in Fusion Devices with the ERO Code: Basics of the Code and Examples of Application

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