Unraveling the surface chemistry processes in lithiated and boronized plasma material interfaces under extreme conditions
Abstract
The review of recent theoretical and experimental research on the complex surface chemistry processes that evolve from low-Z material conditioning on plasma-facing materials under extreme fusion plasma conditions is presented. A combination of multi-scale computational physics and chemistry modeling with real-time diagnosis of the plasma-material interface in tokamak fusion plasma edge is complemented by ex-vessel in-situ single-effect experimental facilities to unravel the evolving characteristics of low-Z components under irradiation. Effects of the lithium and boron coatings at carbon surfaces to the retention of deuterium and chemical sputtering of the plasma-facing surfaces are discussed in detail. The critical role of oxygen in the surface chemistry during hydrogen-fuel irradiation is found to drive the kinetics and dynamics of these surfaces as they interact with fusion edge plasma that ultimately could have profound effects on fusion plasma confinement behavior. Computational studies also extend in spatio-temporal scales not accessible by empirical means and therefore open the opportunity for a strategic approach at irradiation surface science studies that combined these powerful computational tools with in-vessel and ex-vessel in-situ diagnostics.
- Authors:
-
[1];
- Stony Brook Univ., Stony Brook, NY (United States)
- Univ. of Illinois, Urbana, IL (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1567543
- Grant/Contract Number:
- SC0013752; SC0010717; 267898; ACI-1548562.XSEDE
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Matter and Radiation at Extremes (Online)
- Additional Journal Information:
- Journal Name: Matter and Radiation at Extremes (Online); Journal Volume: 3; Journal Issue: 4; Journal ID: ISSN 2468-080X
- Publisher:
- Science and Technology Information Center, China Academy of Engineering Physics; Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Plasma-material interface; Retention; Sputtering; Lithium; Boron; Quantum-classical molecular dynamics; X-ray photoelectron spectroscopy; Material-analysis particle probe
Citation Formats
Krstic, P. S., Allain, J. P., Dominguez-Gutierrez, F. J., and Bedoya, F. Unraveling the surface chemistry processes in lithiated and boronized plasma material interfaces under extreme conditions. United States: N. p., 2018.
Web. doi:10.1016/j.mre.2018.03.003.
Krstic, P. S., Allain, J. P., Dominguez-Gutierrez, F. J., & Bedoya, F. Unraveling the surface chemistry processes in lithiated and boronized plasma material interfaces under extreme conditions. United States. https://doi.org/10.1016/j.mre.2018.03.003
Krstic, P. S., Allain, J. P., Dominguez-Gutierrez, F. J., and Bedoya, F. Thu .
"Unraveling the surface chemistry processes in lithiated and boronized plasma material interfaces under extreme conditions". United States. https://doi.org/10.1016/j.mre.2018.03.003. https://www.osti.gov/servlets/purl/1567543.
@article{osti_1567543,
title = {Unraveling the surface chemistry processes in lithiated and boronized plasma material interfaces under extreme conditions},
author = {Krstic, P. S. and Allain, J. P. and Dominguez-Gutierrez, F. J. and Bedoya, F.},
abstractNote = {The review of recent theoretical and experimental research on the complex surface chemistry processes that evolve from low-Z material conditioning on plasma-facing materials under extreme fusion plasma conditions is presented. A combination of multi-scale computational physics and chemistry modeling with real-time diagnosis of the plasma-material interface in tokamak fusion plasma edge is complemented by ex-vessel in-situ single-effect experimental facilities to unravel the evolving characteristics of low-Z components under irradiation. Effects of the lithium and boron coatings at carbon surfaces to the retention of deuterium and chemical sputtering of the plasma-facing surfaces are discussed in detail. The critical role of oxygen in the surface chemistry during hydrogen-fuel irradiation is found to drive the kinetics and dynamics of these surfaces as they interact with fusion edge plasma that ultimately could have profound effects on fusion plasma confinement behavior. Computational studies also extend in spatio-temporal scales not accessible by empirical means and therefore open the opportunity for a strategic approach at irradiation surface science studies that combined these powerful computational tools with in-vessel and ex-vessel in-situ diagnostics.},
doi = {10.1016/j.mre.2018.03.003},
journal = {Matter and Radiation at Extremes (Online)},
number = 4,
volume = 3,
place = {United States},
year = {Thu May 31 00:00:00 EDT 2018},
month = {Thu May 31 00:00:00 EDT 2018}
}
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Works referencing / citing this record:
Effect of deuterium irradiation on graphite boronized in the NSTX-U tokamak
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