Numerical model of the radio-frequency magnetic presheath including wall impurities

Elias, M.; Curreli, D.; Jenkins, T. G.; Myra, J. R.; Wright, J.

doi:10.1063/1.5109256

Title: Numerical model of the radio-frequency magnetic presheath including wall impurities

Journal Article · 12 September 2019 · Physics of Plasmas

DOI: https://doi.org/10.1063/1.5109256 · OSTI ID:1612838

Elias, M. ^[1]; Curreli, D. ^[2];

^[3];

^[4];

^[5]

Univ. of Illinois at Urbana-Champaign, IL (United States); DOE/OSTI
Univ. of Illinois at Urbana-Champaign, IL (United States)
Tech-X Corp., Boulder, CO (United States)
Lodestar Research Corporation, Boulder, CO (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Here, we present a numerical fluid plasma model able to capture the enhanced sputtering yield from the Faraday Screen and the Plasma-Facing Components of an Ion Cyclotron Resonance Heating antenna in a fusion machine. The model is a one-dimensional phase-resolved representation of a rectified radio frequency sheath in a magnetic field at an angle with respect to the material surface; the momentum transport of both ions and impurities is computed in the model. The sputtering behavior of the impurities coming off from the wall is obtained from the plasma-material interaction code Fractal-Tridyn. This study analyzes a range of magnetic angles and wave frequencies to parametrically investigate their effect on the energy-angle distributions of the impacting ions and sputtered impurities. Finally, an estimate of the impurity fluxes and of the gross-erosion rate is provided and compared with experimental data available in the literature.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21). Scientific Discovery through Advanced Computing (SciDAC); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)

Grant/Contract Number:: SC0018090

OSTI ID:: 1612838

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 26; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (43)

Tridyn-binary collision simulation of atomic collisions and dynamic composition changes in solids Möller, W.; Eckstein, W.; Biersack, J. P. Computer Physics Communications, Vol. 51, Issue 3 https://doi.org/10.1016/0010-4655(88)90148-8	journal	November 1988
Plasma-materials interactions during RF experiments in tokamaks Cohen, S. A.; Bernabei, S.; Budny, R. Journal of Nuclear Materials, Vol. 128-129 https://doi.org/10.1016/0022-3115(84)90367-2	journal	December 1984
Invited paper: ICRF heating/plasma edge interaction in jet with beryllium gettering Bureš, M.; Jacquinot, J.; Stamp, M. Fusion Engineering and Design, Vol. 12, Issue 1-2 https://doi.org/10.1016/0920-3796(90)90088-N	journal	January 1990
A finite element procedure for radio-frequency sheath–plasma interactions based on a sheath impedance model Kohno, H.; Myra, J. R. Computer Physics Communications, Vol. 220 https://doi.org/10.1016/j.cpc.2017.06.025	journal	November 2017
CEA contribution to the ITER ICRH antenna design Bernard, J. M.; Argouarch, A.; Berger-By, G. Fusion Engineering and Design, Vol. 88, Issue 6-8 https://doi.org/10.1016/j.fusengdes.2013.01.040	journal	October 2013
High heat flux testing of ITER ICH&CD antenna beryllium faraday screen bars mock-ups Courtois, X.; Meunier, L.; Kuznetsov, V. Fusion Engineering and Design, Vol. 109-111 https://doi.org/10.1016/j.fusengdes.2016.02.096	journal	November 2016
RF plasma edge interactions and their impact on ICRF antenna performance in Alcator C-Mod Wukitch, S. J.; Lipschultz, B.; Marmar, E. Journal of Nuclear Materials, Vol. 363-365 https://doi.org/10.1016/j.jnucmat.2007.01.273	journal	June 2007
DIVIMP simulations of 13C puffing experiments in ASDEX Upgrade L-mode plasma Makkonen, T.; Groth, M.; Kurki-Suonio, T. Journal of Nuclear Materials, Vol. 415, Issue 1 https://doi.org/10.1016/j.jnucmat.2010.08.023	journal	August 2011
ICRF-edge and surface interactions D’Ippolito, D. A.; Myra, J. R. Journal of Nuclear Materials, Vol. 415, Issue 1 https://doi.org/10.1016/j.jnucmat.2010.08.039	journal	August 2011
Measurements of beryllium sputtering yields at JET Stamp, M. F.; Krieger, K.; Brezinsek, S. Journal of Nuclear Materials, Vol. 415, Issue 1 https://doi.org/10.1016/j.jnucmat.2010.12.038	journal	August 2011
RF sheath-enhanced beryllium sources at JET’s ICRH antennas Klepper, C. C.; Jacquet, P.; Bobkov, V. Journal of Nuclear Materials, Vol. 438 https://doi.org/10.1016/j.jnucmat.2013.01.124	journal	July 2013
F-TRIDYN: A Binary Collision Approximation code for simulating ion interactions with rough surfaces Drobny, Jon; Hayes, Alyssa; Curreli, Davide Journal of Nuclear Materials, Vol. 494 https://doi.org/10.1016/j.jnucmat.2017.07.037	journal	October 2017
Impact of ICRF on the scrape-off layer and on plasma wall interactions: From present experiments to fusion reactor Bobkov, V.; Aguiam, D.; Bilato, R. Nuclear Materials and Energy, Vol. 18 https://doi.org/10.1016/j.nme.2018.11.017	journal	January 2019
SOL RF physics modelling in Europe, in support of ICRF experiments Colas, Laurent; Lu, LingFeng; Jacquot, Jonathan EPJ Web of Conferences, Vol. 157 https://doi.org/10.1051/epjconf/201715701001	journal	January 2017
Nonlinear ICRF-Plasma Interactions Myra, J. R. RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas, AIP Conference Proceedings https://doi.org/10.1063/1.2098187	conference	January 2005
Numerical analysis of radio-frequency sheath-plasma interactions in the ion cyclotron range of frequencies Kohno, H.; Myra, J. R.; D’Ippolito, D. A. Physics of Plasmas, Vol. 19, Issue 1 https://doi.org/10.1063/1.3677262	journal	January 2012
Characterization and performance of a field aligned ion cyclotron range of frequency antenna in Alcator C-Mod Wukitch, S. J.; Garrett, M. L.; Ochoukov, R. Physics of Plasmas, Vol. 20, Issue 5 https://doi.org/10.1063/1.4803882	journal	May 2013
Radio-frequency sheath-plasma interactions with magnetic field tangency points along the sheath surface Kohno, H.; Myra, J. R.; D'Ippolito, D. A. Physics of Plasmas, Vol. 20, Issue 8 https://doi.org/10.1063/1.4818991	journal	August 2013
ICRF-enhanced plasma potentials in the SOL of Alcator C-Mod Ochoukov, R.; Whyte, D. G.; Brunner, D. RADIOFREQUENCY POWER IN PLASMAS: Proceedings of the 20th Topical Conference, AIP Conference Proceedings https://doi.org/10.1063/1.4864539	conference	January 2014
Radio-frequency sheaths physics: Experimental characterization on Tore Supra and related self-consistent modeling Jacquot, Jonathan; Milanesio, Daniele; Colas, Laurent Physics of Plasmas, Vol. 21, Issue 6 https://doi.org/10.1063/1.4884778	journal	June 2014
Radio frequency sheaths in an oblique magnetic field Myra, J. R.; D'Ippolito, D. A. Physics of Plasmas, Vol. 22, Issue 6 https://doi.org/10.1063/1.4922848	journal	June 2015
Physics-based parametrization of the surface impedance for radio frequency sheaths Myra, J. R. Physics of Plasmas, Vol. 24, Issue 7 https://doi.org/10.1063/1.4990373	journal	July 2017
Plasma–wall transition in an oblique magnetic field Chodura, R. Physics of Fluids, Vol. 25, Issue 9 https://doi.org/10.1063/1.863955	journal	January 1982
Radiofrequency sheaths and impurity generation by ICRF antennas Perkins, F. W. Nuclear Fusion, Vol. 29, Issue 4 https://doi.org/10.1088/0029-5515/29/4/004	journal	April 1989
Faraday screen sheaths and impurity production during ion cyclotron heating Myra, J. R.; D'Ippolito, D. A.; Gerver, M. J. Nuclear Fusion, Vol. 30, Issue 5 https://doi.org/10.1088/0029-5515/30/5/004	journal	May 1990
Chapter 6: Plasma auxiliary heating and current drive Drive, ITER Physics Expert Group on Energe; Editors, ITER Physics Basis Nuclear Fusion, Vol. 39, Issue 12 https://doi.org/10.1088/0029-5515/39/12/306	journal	December 1999
A study of molybdenum influxes and transport in Alcator C-Mod Lipschultz, B.; Pappas, D. A.; LaBombard, B. Nuclear Fusion, Vol. 41, Issue 5 https://doi.org/10.1088/0029-5515/41/5/311	journal	May 2001
Hot spot phenomena on Tore Supra ICRF antennas investigated by optical diagnostics Colas, L.; Costanzo, L.; Desgranges, C. Nuclear Fusion, Vol. 43, Issue 1 https://doi.org/10.1088/0029-5515/43/1/301	journal	December 2002
Nonlinear ICRF-plasma interactions Myra, J. R.; D'Ippolito, D. A.; Russell, D. A. Nuclear Fusion, Vol. 46, Issue 7 https://doi.org/10.1088/0029-5515/46/7/S08	journal	June 2006
Assessment of compatibility of ICRF antenna operation with full W wall in ASDEX Upgrade Bobkov, Vl. V.; Braun, F.; Dux, R. Nuclear Fusion, Vol. 50, Issue 3 https://doi.org/10.1088/0029-5515/50/3/035004	journal	February 2010
ICRF operation with improved antennas in ASDEX Upgrade with W wall Bobkov, V.; Balden, M.; Bilato, R. Nuclear Fusion, Vol. 53, Issue 9 https://doi.org/10.1088/0029-5515/53/9/093018	journal	August 2013
WALLDYN simulations of global impurity migration in JET and extrapolations to ITER Schmid, K.; Krieger, K.; Lisgo, S. W. Nuclear Fusion, Vol. 55, Issue 5 https://doi.org/10.1088/0029-5515/55/5/053015	journal	April 2015
Estimates of RF-induced erosion at antenna-connected beryllium plasma-facing components in JET Klepper, C. C.; Borodin, D.; Groth, M. Physica Scripta, Vol. T167 https://doi.org/10.1088/0031-8949/T167/1/014035	journal	January 2016
A model of sheath-driven impurity production by ICRF antennas D'Ippolito, D. A.; Myra, J. R.; Bures, M. Plasma Physics and Controlled Fusion, Vol. 33, Issue 6 https://doi.org/10.1088/0741-3335/33/6/005	journal	June 1991
The interaction between waves in the ion cyclotron range of frequencies and the plasma boundary Noterdaeme, J. -M; Oost, G. Van Plasma Physics and Controlled Fusion, Vol. 35, Issue 11 https://doi.org/10.1088/0741-3335/35/11/001	journal	November 1993
Slow-wave propagation and sheath interaction in the ion-cyclotron frequency range Myra, J. R.; D'Ippolito, D. A. Plasma Physics and Controlled Fusion, Vol. 52, Issue 1 https://doi.org/10.1088/0741-3335/52/1/015003	journal	November 2009
Experimental investigation of the potentials modified by radio frequency sheaths during ion cyclotron range of frequency on EAST Qin, C. M.; Zhao, Y. P.; QWang, H. Plasma Physics and Controlled Fusion, Vol. 55, Issue 1 https://doi.org/10.1088/0741-3335/55/1/015004	journal	December 2012
ICRF-enhanced plasma potentials in the SOL of Alcator C-Mod Ochoukov, R.; Whyte, D. G.; Brunner, D. Plasma Physics and Controlled Fusion, Vol. 56, Issue 1 https://doi.org/10.1088/0741-3335/56/1/015004	journal	December 2013
Ion energy distributions in rf sheaths; review, analysis and simulation Kawamura, E.; Vahedi, V.; Lieberman, M. A. Plasma Sources Science and Technology, Vol. 8, Issue 3 https://doi.org/10.1088/0963-0252/8/3/202	journal	January 1999
ERO modeling and sensitivity analysis of locally enhanced beryllium erosion by magnetically connected antennas Lasa, A.; Borodin, D.; Canik, J. M. Nuclear Fusion, Vol. 58, Issue 1 https://doi.org/10.1088/1741-4326/aa90c0	journal	December 2017
Data for: Sputtering Yield dataset for Be produced from F-Tridyn Elias, Moutaz Zenodo https://doi.org/10.5281/zenodo.2597590	dataset	January 2019
Data for: Sputtering Yield dataset for Be produced from F-Tridyn Elias, Moutaz Zenodo https://doi.org/10.5281/zenodo.2597591	dataset	January 2019
Impact of ICRF on the scrape-off layer and on plasma wall interactions: From present experiments to fusion reactor Bobkov, V.; Aguiam, D.; Bilato, R. Elsevier https://doi.org/10.5445/ir/1000119909	text	January 2019

Similar Records

Integrated modeling of RF-induced tungsten erosion at ICRH antenna structures in the WEST tokamak^*

Journal Article · 2025 · Nuclear Fusion · OSTI ID:2573433

Kumar, A.; Tierens, W.; Younkin, T.; +13 more

Resonance in radio frequency sheath admittance and enhanced impurity emission near the ion cyclotron frequency

Journal Article · 2023 · Nuclear Fusion · OSTI ID:2578803

Rezazadeh, Mikhail; Myra, James R.; Curreli, Davide

Radiofrequency sheath rectification on WEST: application of the sheath-equivalent dielectric layer technique in tokamak geometry^*

Journal Article · 2024 · Nuclear Fusion · OSTI ID:2467562

Tierens, Wouter; Kumar, Atul; Klepper, Christopher; +8 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Physics
Plasma facing components
Plasma heating
Plasma material interactions
Plasma sheaths
Plasma waves

Title: Numerical model of the radio-frequency magnetic presheath including wall impurities

Citation Formats

References (43)

Similar Records

Related Subjects