H-mode achieved by pellet injection in experimental advanced superconducting tokamak

X. J. Yao; J. S. Hu; Y. Chen; Z. Sun; H. Q. Liu; H. Lian; S. X. Wang; Y. X. Jie; N. Shi; G. S. Xu; Q. Q. Yang; T. H. Shi; C. Zhou; Z. Xu; X. Zhu; T. F. Wang; Q. Zang; Y. Yuan; C. Z. Li; X. W. Zhen; X. Z. Gong; J. Li; G. J. Wu; X. L. Yuan

doi:10.1088/1741-4326/aa665c

H-mode achieved by pellet injection in experimental advanced superconducting tokamak

X. J. Yao, J. S. Hu, Y. Chen, Z. Sun, H. Q. Liu, H. Lian, S. X. Wang, Y. X. Jie, N. Shi, G. S. Xu, Q. Q. Yang, T. H. Shi, C. Zhou, Z. Xu, X. Zhu, T. F. Wang, Q. Zang, Y. Yuan, C. Z. Li, X. W. ZhenX. Z. Gong, J. Li, G. J. Wu, X. L. Yuan

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13 Scopus citations

Abstract

High-confinement (H-mode) plasma was achieved by injecting frozen deuterium pellets in the experimental advanced superconducting tokamak (EAST). Interesting phenomena of the simple and two-stage low-high confinement (L-H) transitions are observed in EAST with radio frequency heating after pellet injection. The results of the L-H transitions induced by pellets are discussed in detail with different theories. It is found that pellet injection in EAST can reduce the power threshold of the H-mode. Furthermore, the pellet-induced edge density gradient is an important parameter affecting the L-H transition. This investigation would be useful for the analysis of the feasibility of H-mode access by pellet injection in future devices, such as ITER.

Original language	English (US)
Article number	066002
Journal	Nuclear Fusion
Volume	57
Issue number	6
DOIs	https://doi.org/10.1088/1741-4326/aa665c
State	Published - Apr 11 2017
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

EAST
L-H transition
pellet

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10.1088/1741-4326/aa665c

Cite this

Yao, X. J., Hu, J. S., Chen, Y., Sun, Z., Liu, H. Q., Lian, H., Wang, S. X., Jie, Y. X., Shi, N., Xu, G. S., Yang, Q. Q., Shi, T. H., Zhou, C., Xu, Z., Zhu, X., Wang, T. F., Zang, Q., Yuan, Y., Li, C. Z., ... Yuan, X. L. (2017). H-mode achieved by pellet injection in experimental advanced superconducting tokamak. Nuclear Fusion, 57(6), Article 066002. https://doi.org/10.1088/1741-4326/aa665c

@article{d8b6832bb84a4a4495e54ea364acb368,

title = "H-mode achieved by pellet injection in experimental advanced superconducting tokamak",

abstract = "High-confinement (H-mode) plasma was achieved by injecting frozen deuterium pellets in the experimental advanced superconducting tokamak (EAST). Interesting phenomena of the simple and two-stage low-high confinement (L-H) transitions are observed in EAST with radio frequency heating after pellet injection. The results of the L-H transitions induced by pellets are discussed in detail with different theories. It is found that pellet injection in EAST can reduce the power threshold of the H-mode. Furthermore, the pellet-induced edge density gradient is an important parameter affecting the L-H transition. This investigation would be useful for the analysis of the feasibility of H-mode access by pellet injection in future devices, such as ITER.",

keywords = "EAST, L-H transition, pellet",

author = "Yao, \{X. J.\} and Hu, \{J. S.\} and Y. Chen and Z. Sun and Liu, \{H. Q.\} and H. Lian and Wang, \{S. X.\} and Jie, \{Y. X.\} and N. Shi and Xu, \{G. S.\} and Yang, \{Q. Q.\} and Shi, \{T. H.\} and C. Zhou and Z. Xu and X. Zhu and Wang, \{T. F.\} and Q. Zang and Y. Yuan and Li, \{C. Z.\} and Zhen, \{X. W.\} and Gong, \{X. Z.\} and J. Li and Wu, \{G. J.\} and Yuan, \{X. L.\}",

note = "Publisher Copyright: {\textcopyright} 2017 IAEA, Vienna.",

year = "2017",

month = apr,

day = "11",

doi = "10.1088/1741-4326/aa665c",

language = "English (US)",

volume = "57",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Yao, XJ, Hu, JS, Chen, Y, Sun, Z, Liu, HQ, Lian, H, Wang, SX, Jie, YX, Shi, N, Xu, GS, Yang, QQ, Shi, TH, Zhou, C, Xu, Z, Zhu, X, Wang, TF, Zang, Q, Yuan, Y, Li, CZ, Zhen, XW, Gong, XZ, Li, J, Wu, GJ & Yuan, XL 2017, 'H-mode achieved by pellet injection in experimental advanced superconducting tokamak', Nuclear Fusion, vol. 57, no. 6, 066002. https://doi.org/10.1088/1741-4326/aa665c

TY - JOUR

T1 - H-mode achieved by pellet injection in experimental advanced superconducting tokamak

AU - Yao, X. J.

AU - Hu, J. S.

AU - Chen, Y.

AU - Sun, Z.

AU - Liu, H. Q.

AU - Lian, H.

AU - Wang, S. X.

AU - Jie, Y. X.

AU - Shi, N.

AU - Xu, G. S.

AU - Yang, Q. Q.

AU - Shi, T. H.

AU - Zhou, C.

AU - Xu, Z.

AU - Zhu, X.

AU - Wang, T. F.

AU - Zang, Q.

AU - Yuan, Y.

AU - Li, C. Z.

AU - Zhen, X. W.

AU - Gong, X. Z.

AU - Li, J.

AU - Wu, G. J.

AU - Yuan, X. L.

PY - 2017/4/11

Y1 - 2017/4/11

N2 - High-confinement (H-mode) plasma was achieved by injecting frozen deuterium pellets in the experimental advanced superconducting tokamak (EAST). Interesting phenomena of the simple and two-stage low-high confinement (L-H) transitions are observed in EAST with radio frequency heating after pellet injection. The results of the L-H transitions induced by pellets are discussed in detail with different theories. It is found that pellet injection in EAST can reduce the power threshold of the H-mode. Furthermore, the pellet-induced edge density gradient is an important parameter affecting the L-H transition. This investigation would be useful for the analysis of the feasibility of H-mode access by pellet injection in future devices, such as ITER.

AB - High-confinement (H-mode) plasma was achieved by injecting frozen deuterium pellets in the experimental advanced superconducting tokamak (EAST). Interesting phenomena of the simple and two-stage low-high confinement (L-H) transitions are observed in EAST with radio frequency heating after pellet injection. The results of the L-H transitions induced by pellets are discussed in detail with different theories. It is found that pellet injection in EAST can reduce the power threshold of the H-mode. Furthermore, the pellet-induced edge density gradient is an important parameter affecting the L-H transition. This investigation would be useful for the analysis of the feasibility of H-mode access by pellet injection in future devices, such as ITER.

KW - EAST

KW - L-H transition

KW - pellet

UR - https://www.scopus.com/pages/publications/85019398320

UR - https://www.scopus.com/inward/citedby.url?scp=85019398320&partnerID=8YFLogxK

U2 - 10.1088/1741-4326/aa665c

DO - 10.1088/1741-4326/aa665c

M3 - Article

AN - SCOPUS:85019398320

SN - 0029-5515

VL - 57

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 6

M1 - 066002

ER -

H-mode achieved by pellet injection in experimental advanced superconducting tokamak

Abstract

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