Active wall conditioning through boron powder injection compatible ELM control in EAST

W. Xu; Z. Sun; R. Maingi; G. Z. Zuo; Y. W. Yu; C. L. Li; Y. H. Guan; Z. T. Zhou; X. C. Meng; M. Huang; L. Zhang; W. Gao; J. S. Hu

doi:10.1016/j.nme.2022.101359

Active wall conditioning through boron powder injection compatible ELM control in EAST

W. Xu
, Z. Sun
, R. Maingi
, G. Z. Zuo
, Y. W. Yu
, C. L. Li
, Y. H. Guan
, Z. T. Zhou
, X. C. Meng
, M. Huang
, L. Zhang
, W. Gao
, J. S. Hu

PPPL Tokamak Expermntl Science

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Real-time wall conditioning and edge-localized mode (ELM) suppression through real-time boron powder injection into high-confinement mode discharges of the Experimental Advanced Superconducting Tokamak (EAST) have been investigated. The boron powder injection effectively conditioned the plasma-facing components, as shown by the reductions in low-Z and high-Z impurities and the global recycling level in the whole inner vessel, and suppressed the strong magnetohydrodynamic (MHD) activity in the plasma core. The improved wall conditions also resulted in an earlier transition from L- to H-mode. Boron powder injection also effectively suppressed ELM in the lower single null configuration with B_T in the favorable direction while leaving the plasma density and stored energy largely unaffected.

Original language	English (US)
Article number	101359
Journal	Nuclear Materials and Energy
Volume	34
DOIs	https://doi.org/10.1016/j.nme.2022.101359
State	Published - Mar 2023

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Materials Science (miscellaneous)
Nuclear Energy and Engineering

Keywords

Boron powder
EAST
ELM control
Wall conditioning

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10.1016/j.nme.2022.101359

Cite this

@article{7edd3772748e412db1b436a1a01c884e,

title = "Active wall conditioning through boron powder injection compatible ELM control in EAST",

abstract = "Real-time wall conditioning and edge-localized mode (ELM) suppression through real-time boron powder injection into high-confinement mode discharges of the Experimental Advanced Superconducting Tokamak (EAST) have been investigated. The boron powder injection effectively conditioned the plasma-facing components, as shown by the reductions in low-Z and high-Z impurities and the global recycling level in the whole inner vessel, and suppressed the strong magnetohydrodynamic (MHD) activity in the plasma core. The improved wall conditions also resulted in an earlier transition from L- to H-mode. Boron powder injection also effectively suppressed ELM in the lower single null configuration with BT in the favorable direction while leaving the plasma density and stored energy largely unaffected.",

keywords = "Boron powder, EAST, ELM control, Wall conditioning",

author = "W. Xu and Z. Sun and R. Maingi and Zuo, \{G. Z.\} and Yu, \{Y. W.\} and Li, \{C. L.\} and Guan, \{Y. H.\} and Zhou, \{Z. T.\} and Meng, \{X. C.\} and M. Huang and L. Zhang and W. Gao and Hu, \{J. S.\}",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2023",

month = mar,

doi = "10.1016/j.nme.2022.101359",

language = "English (US)",

volume = "34",

journal = "Nuclear Materials and Energy",

issn = "2352-1791",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Active wall conditioning through boron powder injection compatible ELM control in EAST

AU - Xu, W.

AU - Sun, Z.

AU - Maingi, R.

AU - Zuo, G. Z.

AU - Yu, Y. W.

AU - Li, C. L.

AU - Guan, Y. H.

AU - Zhou, Z. T.

AU - Meng, X. C.

AU - Huang, M.

AU - Zhang, L.

AU - Gao, W.

AU - Hu, J. S.

PY - 2023/3

Y1 - 2023/3

N2 - Real-time wall conditioning and edge-localized mode (ELM) suppression through real-time boron powder injection into high-confinement mode discharges of the Experimental Advanced Superconducting Tokamak (EAST) have been investigated. The boron powder injection effectively conditioned the plasma-facing components, as shown by the reductions in low-Z and high-Z impurities and the global recycling level in the whole inner vessel, and suppressed the strong magnetohydrodynamic (MHD) activity in the plasma core. The improved wall conditions also resulted in an earlier transition from L- to H-mode. Boron powder injection also effectively suppressed ELM in the lower single null configuration with BT in the favorable direction while leaving the plasma density and stored energy largely unaffected.

AB - Real-time wall conditioning and edge-localized mode (ELM) suppression through real-time boron powder injection into high-confinement mode discharges of the Experimental Advanced Superconducting Tokamak (EAST) have been investigated. The boron powder injection effectively conditioned the plasma-facing components, as shown by the reductions in low-Z and high-Z impurities and the global recycling level in the whole inner vessel, and suppressed the strong magnetohydrodynamic (MHD) activity in the plasma core. The improved wall conditions also resulted in an earlier transition from L- to H-mode. Boron powder injection also effectively suppressed ELM in the lower single null configuration with BT in the favorable direction while leaving the plasma density and stored energy largely unaffected.

KW - Boron powder

KW - EAST

KW - ELM control

KW - Wall conditioning

UR - https://www.scopus.com/pages/publications/85145018713

UR - https://www.scopus.com/pages/publications/85145018713#tab=citedBy

U2 - 10.1016/j.nme.2022.101359

DO - 10.1016/j.nme.2022.101359

M3 - Article

AN - SCOPUS:85145018713

SN - 2352-1791

VL - 34

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

M1 - 101359

ER -

Active wall conditioning through boron powder injection compatible ELM control in EAST

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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