Measurement and modeling of aluminum sputtering and ionization in the DIII-D divertor including magnetic pre-sheath effects

Chrobak, C. P.; Stangeby, P. C.; Hollmann, E.; Rudakov, D. L.; Abrams, T.; Ding, R.; Elder, J. D.; Guterl, J.; Hinson, E.; Guo, H. Y.; Thomas, D. M.; Skinner, C. H.; McLean, A. G.; Wampler, W. R.; Buchenauer, D. A.; Doerner, R. P.; Tynan, G. R.

doi:10.1088/1741-4326/aad4c9

Title: Measurement and modeling of aluminum sputtering and ionization in the DIII-D divertor including magnetic pre-sheath effects

Authors:

^[1];

^[2]; Hollmann, E. ^[3]; Rudakov, D. L. ^[3]; Abrams, T. ^[4];

^[5]; Elder, J. D. ^[2];

^[6];

^[7]; Guo, H. Y. ^[4]; Thomas, D. M. ^[4]; Skinner, C. H. ^[8]; McLean, A. G. ^[9]; Wampler, W. R. ^[10]; Buchenauer, D. A. ^[10]; Doerner, R. P. ^[4]; Tynan, G. R. ^[3]

General Atomics, San Diego, CA (United States); Univ. of California, San Diego, CA (United States)
Univ. of Toronto, ON (Canada)
Univ. of California, San Diego, CA (United States)
General Atomics, San Diego, CA (United States)
China Academy of Sciences, Hefei (China)
Oak Ridge Associated Univ., Oak Ridge, TN (United States)
Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemical and Biological Engineering
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Publication Date:: Wed Aug 08 00:00:00 EDT 2018

Research Org.:: General Atomics, San Diego, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1463639

Alternate Identifier(s):: OSTI ID: 1465186; OSTI ID: 1473702; OSTI ID: 1890820

Report Number(s):: SAND-2018-6775J; LLNL-JRNL-839021
Journal ID: ISSN 0029-5515

Grant/Contract Number:: FC02-04ER54698; AC04-94AL85000; AC52-07NA27344; FG02-94ER52435; SC0001961; NA0003525

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Fusion

Additional Journal Information:: Journal Volume: 58; Journal Issue: 10; Journal ID: ISSN 0029-5515

Publisher:: IOP Science

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; divertor; sheath; low-Z; erosion; ionization; angular distribution; sputtering

Citation Formats


                    Chrobak, C. P., Stangeby, P. C., Hollmann, E., Rudakov, D. L., Abrams, T., Ding, R., Elder, J. D., Guterl, J., Hinson, E., Guo, H. Y., Thomas, D. M., Skinner, C. H., McLean, A. G., Wampler, W. R., Buchenauer, D. A., Doerner, R. P., and Tynan, G. R. Measurement and modeling of aluminum sputtering and ionization in the DIII-D divertor including magnetic pre-sheath effects.  United States: N. p., 2018. 
Web.  doi:10.1088/1741-4326/aad4c9.

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                    Chrobak, C. P., Stangeby, P. C., Hollmann, E., Rudakov, D. L., Abrams, T., Ding, R., Elder, J. D., Guterl, J., Hinson, E., Guo, H. Y., Thomas, D. M., Skinner, C. H., McLean, A. G., Wampler, W. R., Buchenauer, D. A., Doerner, R. P., & Tynan, G. R. Measurement and modeling of aluminum sputtering and ionization in the DIII-D divertor including magnetic pre-sheath effects.  United States.  https://doi.org/10.1088/1741-4326/aad4c9

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                    Chrobak, C. P., Stangeby, P. C., Hollmann, E., Rudakov, D. L., Abrams, T., Ding, R., Elder, J. D., Guterl, J., Hinson, E., Guo, H. Y., Thomas, D. M., Skinner, C. H., McLean, A. G., Wampler, W. R., Buchenauer, D. A., Doerner, R. P., and Tynan, G. R. Wed .  
"Measurement and modeling of aluminum sputtering and ionization in the DIII-D divertor including magnetic pre-sheath effects".  United States.  https://doi.org/10.1088/1741-4326/aad4c9.  https://www.osti.gov/servlets/purl/1463639.

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@article{osti_1463639,

  title        = {Measurement and modeling of aluminum sputtering and ionization in the DIII-D divertor including magnetic pre-sheath effects},

  author       = {Chrobak, C. P. and Stangeby, P. C. and Hollmann, E. and Rudakov, D. L. and Abrams, T. and Ding, R. and Elder, J. D. and Guterl, J. and Hinson, E. and Guo, H. Y. and Thomas, D. M. and Skinner, C. H. and McLean, A. G. and Wampler, W. R. and Buchenauer, D. A. and Doerner, R. P. and Tynan, G. R.},

  abstractNote = {},

  doi          = {10.1088/1741-4326/aad4c9},

  journal      = {Nuclear Fusion},

  number       = 10,

  volume       = 58,

  place        = {United States},

  year         = {Wed Aug 08 00:00:00 EDT 2018},

  month        = {Wed Aug 08 00:00:00 EDT 2018}

}

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Localized divertor leakage measurements using isotopic tungsten sources during edge-localized mode-y H-mode discharges on DIII-D

Journal Article Unterberg, E. A. ; Abrams, T. ; Bykov, I. ; ... - Nuclear Fusion

Experiments carried out on DIII-D using a novel setup of isotopic tungsten (W) sources in the outer divertor have characterized how the W leakage from this region depends on both the exact source location and edge-localized mode (ELM) behavior. The sources are toroidally-symmetric and poloidally-localized to two regions: (1) the outer strike point (OSP) with natural abundance of W isotopes; and (2) the far-target with highly-enriched ¹⁸²W isotopes. With the use of a dual-faced collector probe (CP) in the main scrape-off layer (SOL) near the outside midplane and source-rate spectroscopy, a proxy for divertor impurity leakage is developed herein. Usingmore »« less
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https://doi.org/10.1088/1741-4326/ab537b

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Handbook of Mathematical Functions With Formulas, Graphs and Mathematical Tables (National Bureau of Standards Applied Mathematics Series No. 55) journal, March 1965

Angle of incidence dependence of light ion physical sputtering of carbon journal, April 1989

13C transport studies in L-mode divertor plasmas on DIII-D journal, March 2005

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Deuterium-Tritium Fuel Self-Sufficiency in Fusion Reactors journal, March 1986

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An Analytical Expression for the Electric Field and Particle Tracing in Modelling of Be Erosion Experiments at the JET ITER-like Wall: An Analytical Expression for the Electric Field and Particle Tracing in Modelling of Be Erosion Experiments at the JET ITER-like Wall
journal, June 2016

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journal, February 2006

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journal, August 2009

Roughening and ripple instabilities on ion-bombarded Si
journal, December 1996

Can aluminium or magnesium be a surrogate for beryllium: A critical investigation of their chemistry
journal, October 2013

Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW
journal, December 2016

An experimental comparison of gross and net erosion of Mo in the DIII-D divertor
journal, July 2013

Plasma–wall transition in an oblique magnetic field
journal, January 1982

Determination of Be sputtering yields from spectroscopic observations at the JET ITER-like wall based on three-dimensional ERO modelling
journal, April 2014

Bending of ion-acoustic solitons
journal, March 1990

Measurements of net erosion and redeposition of molybdenum in DIII-D
journal, July 2013

Characterizing Low-Z erosion and deposition in the DIII-D divertor using aluminum
journal, August 2017

Dynamics of erosion and deposition in tokamaks
journal, June 2009

Modelling and analysis of DIII-D/DiMES sputtered impurity transport experiments
journal, April 1999

Application of Analytical Model of the Electric Potential Distribution for Calculation of Charged Particle Dynamics in a Near-Wall Layer and Sputtering of the Plasma Facing Surfaces
journal, August 2015

Ion energy-angle distribution functions at the plasma-material interface in oblique magnetic fields
journal, April 2015

Beryllium migration in JET ITER-like wall plasmas
journal, May 2015

Energy Dependence of Ion-Induced Sputtering Yields from Monatomic Solids at Normal Incidence
journal, March 1996

Tungsten nano-tendril growth in the Alcator C-Mod divertor
journal, March 2012

Beryllium film deposition in cavity samples in remote areas of the JET divertor during the 2011–2012 ITER-like wall campaign
journal, August 2017

Handbook of Mathematical Functions With Formulas, Graphs and Mathematical Tables (National Bureau of Standards Applied Mathematics Series No. 55)
journal, March 1965

Angle of incidence dependence of light ion physical sputtering of carbon
journal, April 1989

13C transport studies in L-mode divertor plasmas on DIII-D
journal, March 2005

Impact of surface morphology on sputtering during high-fluence plasma exposure
journal, April 2014

Overview of the JET ITER-like wall divertor
journal, August 2017

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journal, March 1986

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journal, July 2013

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journal, October 2014

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journal, June 2007

Quantitative modeling of fuel retention in the JET-C and JET-ILW wall configurations by WallDYN and predictions for ITER
journal, August 2015

Smoothing of chemically vapour deposited diamond films by ion beam irradiation
journal, May 1992

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journal, August 2017

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journal, August 2011

Models, assumptions, and experimental tests of flows near boundaries in magnetized plasmas
journal, March 2016

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journal, November 2005

Monte Carlo simulations of tungsten redeposition at the divertor target
journal, January 2014

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journal, January 2001

DiMES divertor erosion experiments on DIII-D
journal, February 1997

Recommended Data on the Electron Impact Ionization of Atoms and Ions: Fluorine to Nickel
journal, July 1988

‘Mixed-material evolution analysis of the ITER divertor’
journal, June 2009

Microanalysis of deposited layers in the inner divertor of JET with ITER-like wall
journal, August 2017

Magnetic and collisional effects on presheaths
journal, August 1995

Physics basis and design of the ITER plasma-facing components
journal, August 2011

Net versus gross erosion of high- Z materials in the divertor of DIII-D
journal, April 2014

Large area smoothing of surfaces by ion bombardment: fundamentals and applications
journal, May 2009

The inter-ELM tungsten erosion profile in DIII-D H-mode discharges and benchmarking with ERO+OEDGE modeling
journal, April 2017

Time-resolved deposition in the remote region of the JET-ILW divertor: measurements and modelling
journal, November 2017

The Plasma Boundary of Magnetic Fusion Devices
journal, January 2001

Modelling of beryllium erosion–redeposition on ITER first wall panels
journal, August 2011

ERO code benchmarking of ITER first wall beryllium erosion/re-deposition against LIM predictions
journal, December 2011

Removal of beryllium-containing films deposited in JET from mirror surfaces by laser cleaning
journal, August 2011

Influence of liquid lead and lead–bismuth eutectic on tensile, fatigue and creep properties of ferritic/martensitic and austenitic steels for transmutation systems
journal, August 2011

An experimental investigation of angular resolved energy distributions of atoms sputtered from evaporated aluminum films
journal, August 2001

The Chodura sheath for angles of a few degrees between the magnetic field and the surface of divertor targets and limiters
journal, July 2012

Diverted tokamak carbon screening: scaling with machine size and consequences for core contamination
journal, June 2004

Ionization of boron, aluminum, gallium, and indium by electron impact
journal, October 2001

Divertor materials evaluation system (DiMES)
journal, October 1998

Multichord spectroscopy of the DIII‐D divertor region
journal, October 1992

Experimental Advanced Superconducting Tokamak/material and plasma evaluation system material migration experiment
journal, April 2014

Erosion of beryllium under high-flux plasma impact
journal, July 2013

Effect of surface roughness and substrate material on carbon erosion and deposition in the TEXTOR tokamak
journal, July 2008

The Plasma Boundary of Magnetic Fusion Devices
book, January 2000

Interpretive modeling of simple-as-possible-plasma discharges on DIII-D using the OEDGE code
journal, March 2003

Preparation of atomically smooth surfaces via sputtering under glancing incidence conditions
journal, July 1995

Preparation of smooth Si(001) surfaces by glancing angle sputtering
journal, January 1999

Molecules can be sputtered also from pure metals: sputtering of beryllium hydride by fusion plasma–wall interactions
journal, June 2013

Measurements of gross erosion of Al in the DIII-D divertor
journal, August 2015

A mechanism of surface micro-roughening by ion bombardment
journal, November 1973