ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak

J. S. Hu; Z. Sun; C. Z. Li; X. W. Zhen; J. G. Li; H. Y. Guo; J. H. Li; L. Wang; K. F. Gan; Y. Chen; J. Ren; G. Z. Zuo; X. J. Yao; L. Q. Hu; X. Z. Gong; B. N. Wan; X. L. Zou; D. K. Mansfield; Y. F. Liang; I. Vinyar

doi:10.1016/j.jnucmat.2014.09.021

ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak

J. S. Hu
, Z. Sun
, C. Z. Li
, X. W. Zhen
, J. G. Li
, H. Y. Guo
, J. H. Li
, L. Wang
, K. F. Gan
, Y. Chen
, J. Ren
, G. Z. Zuo
, X. J. Yao
, L. Q. Hu
, X. Z. Gong
, B. N. Wan
, X. L. Zou
, D. K. Mansfield
, Y. F. Liang
, I. Vinyar

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

Abstract

Abstract In this paper, we will present experimental results from EAST on the mitigation of edge localized modes (ELMs) using recently developed deuterium/lithium pellet injections as well as supersonic molecular beam injections (SMBI). Using a Laval nozzle, ELM mitigation with SMBI has been demonstrated in EAST in quasi-steady state. Using a D₂ pellet injector, a giant ELM appears followed by a burst of high frequency ELMs at ∼300 Hz with duration of a few tens of milliseconds. Furthermore, for the first time, a novel technology using a simple rotating impeller to inject sub-millimeter size lithium (Li) granules at speeds of a few tens of meters per second was successfully used to pace ELMs. These experiments indicate that, on EAST, several technologies can contribute to the database supporting ELMs control in future fusion devices, such as ITER.

Original language	American English
Article number	48434
Pages (from-to)	718-722
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	463
DOIs	https://doi.org/10.1016/j.jnucmat.2014.09.021
State	Published - Jul 22 2015
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
General Materials Science

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10.1016/j.jnucmat.2014.09.021

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Hu, J. S., Sun, Z., Li, C. Z., Zhen, X. W., Li, J. G., Guo, H. Y., Li, J. H., Wang, L., Gan, K. F., Chen, Y., Ren, J., Zuo, G. Z., Yao, X. J., Hu, L. Q., Gong, X. Z., Wan, B. N., Zou, X. L., Mansfield, D. K., Liang, Y. F., & Vinyar, I. (2015). ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak. Journal of Nuclear Materials, 463, 718-722. Article 48434. https://doi.org/10.1016/j.jnucmat.2014.09.021

@article{eb288990e22148f4a46a5951bf47f4bb,

title = "ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak",

abstract = "Abstract In this paper, we will present experimental results from EAST on the mitigation of edge localized modes (ELMs) using recently developed deuterium/lithium pellet injections as well as supersonic molecular beam injections (SMBI). Using a Laval nozzle, ELM mitigation with SMBI has been demonstrated in EAST in quasi-steady state. Using a D2 pellet injector, a giant ELM appears followed by a burst of high frequency ELMs at ∼300 Hz with duration of a few tens of milliseconds. Furthermore, for the first time, a novel technology using a simple rotating impeller to inject sub-millimeter size lithium (Li) granules at speeds of a few tens of meters per second was successfully used to pace ELMs. These experiments indicate that, on EAST, several technologies can contribute to the database supporting ELMs control in future fusion devices, such as ITER.",

author = "Hu, \{J. S.\} and Z. Sun and Li, \{C. Z.\} and Zhen, \{X. W.\} and Li, \{J. G.\} and Guo, \{H. Y.\} and Li, \{J. H.\} and L. Wang and Gan, \{K. F.\} and Y. Chen and J. Ren and Zuo, \{G. Z.\} and Yao, \{X. J.\} and Hu, \{L. Q.\} and Gong, \{X. Z.\} and Wan, \{B. N.\} and Zou, \{X. L.\} and Mansfield, \{D. K.\} and Liang, \{Y. F.\} and I. Vinyar",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

month = jul,

day = "22",

doi = "10.1016/j.jnucmat.2014.09.021",

language = "American English",

volume = "463",

pages = "718--722",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

}

Hu, JS, Sun, Z, Li, CZ, Zhen, XW, Li, JG, Guo, HY, Li, JH, Wang, L, Gan, KF, Chen, Y, Ren, J, Zuo, GZ, Yao, XJ, Hu, LQ, Gong, XZ, Wan, BN, Zou, XL, Mansfield, DK, Liang, YF & Vinyar, I 2015, 'ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak', Journal of Nuclear Materials, vol. 463, 48434, pp. 718-722. https://doi.org/10.1016/j.jnucmat.2014.09.021

TY - JOUR

T1 - ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak

AU - Hu, J. S.

AU - Sun, Z.

AU - Li, C. Z.

AU - Zhen, X. W.

AU - Li, J. G.

AU - Guo, H. Y.

AU - Li, J. H.

AU - Wang, L.

AU - Gan, K. F.

AU - Chen, Y.

AU - Ren, J.

AU - Zuo, G. Z.

AU - Yao, X. J.

AU - Hu, L. Q.

AU - Gong, X. Z.

AU - Wan, B. N.

AU - Zou, X. L.

AU - Mansfield, D. K.

AU - Liang, Y. F.

AU - Vinyar, I.

PY - 2015/7/22

Y1 - 2015/7/22

N2 - Abstract In this paper, we will present experimental results from EAST on the mitigation of edge localized modes (ELMs) using recently developed deuterium/lithium pellet injections as well as supersonic molecular beam injections (SMBI). Using a Laval nozzle, ELM mitigation with SMBI has been demonstrated in EAST in quasi-steady state. Using a D2 pellet injector, a giant ELM appears followed by a burst of high frequency ELMs at ∼300 Hz with duration of a few tens of milliseconds. Furthermore, for the first time, a novel technology using a simple rotating impeller to inject sub-millimeter size lithium (Li) granules at speeds of a few tens of meters per second was successfully used to pace ELMs. These experiments indicate that, on EAST, several technologies can contribute to the database supporting ELMs control in future fusion devices, such as ITER.

AB - Abstract In this paper, we will present experimental results from EAST on the mitigation of edge localized modes (ELMs) using recently developed deuterium/lithium pellet injections as well as supersonic molecular beam injections (SMBI). Using a Laval nozzle, ELM mitigation with SMBI has been demonstrated in EAST in quasi-steady state. Using a D2 pellet injector, a giant ELM appears followed by a burst of high frequency ELMs at ∼300 Hz with duration of a few tens of milliseconds. Furthermore, for the first time, a novel technology using a simple rotating impeller to inject sub-millimeter size lithium (Li) granules at speeds of a few tens of meters per second was successfully used to pace ELMs. These experiments indicate that, on EAST, several technologies can contribute to the database supporting ELMs control in future fusion devices, such as ITER.

UR - https://www.scopus.com/pages/publications/84937710281

UR - https://www.scopus.com/pages/publications/84937710281#tab=citedBy

U2 - 10.1016/j.jnucmat.2014.09.021

DO - 10.1016/j.jnucmat.2014.09.021

M3 - Article

SN - 0022-3115

VL - 463

SP - 718

EP - 722

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

M1 - 48434

ER -

ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak

Abstract

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