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Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak
Idei, H.1; Kariya, T.2; Imai, T.2; Mishra, K.4; Onchi, T.1; Watanabe, O.1; Zushi, H.1; Hanada, K.1; Qian, J.3; Ejiri, A.5; Alam, M. M.4; Nakamura, K.1; Fujisawa, A.1; Nagashima, Y.1; Hasegawa, M.1; Matsuoka, K.1; Fukuyama, A.6; Kubo, S.7; Shimozuma, T.7; Yoshikawa, M.2; Sakamoto, M.2; Kawasaki, S.1; Nakashima, H.1; Higashijima, A.1; Ide, S.8; Maekawa, T.9; Takase, Y.5; Toi, K.7
2017-12-01
Source PublicationNUCLEAR FUSION
Volume57Issue:12
AbstractFully non-inductive second (2nd) harmonic electron cyclotron (EC) plasma current ramp-up was demonstrated with a newlly developed 28 GHz system in the QUEST spherical tokamak. A high plasma current of 54 kA was non-inductively ramped up and sustained stably for 0.9 s with a 270 kW 28 GHz wave. A higher plasma current of 66 kA was also non-inductively achieved with a slow ramp-up of the vertical field. We have achieved a significantly higher plasma current than those achieved previously with the 2nd harmonic EC waves. This fully non-inductive 2nd harmonic EC plasma ramp-up method might be useful for future burning plasma devices and fusion reactors, in particular for operations at half magnetic field with the same EC heating equipment.
SubtypeArticle
KeywordElectron Cyclotron Heating And Current Drive Electron Bernstein Wave Heating And Current Drive Spherical Tokamak Non-inductive Plasma Startup
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNIFS Collaboration Research Programs(NIFS09KUTR046 ; NIFS Collaboration Research Programs(NIFS09KUTR046 ; JSPS KAKENHI(JP1504231) ; JSPS KAKENHI(JP1504231) ; NIFS10KUTR048 ; NIFS10KUTR048 ; NIFS11KUTR059 ; NIFS11KUTR059 ; NIFS11KUTR069) ; NIFS11KUTR069) ; NIFS Collaboration Research Programs(NIFS09KUTR046 ; NIFS Collaboration Research Programs(NIFS09KUTR046 ; JSPS KAKENHI(JP1504231) ; JSPS KAKENHI(JP1504231) ; NIFS10KUTR048 ; NIFS10KUTR048 ; NIFS11KUTR059 ; NIFS11KUTR059 ; NIFS11KUTR069) ; NIFS11KUTR069)
DOI10.1088/1741-4326/aa7c20
WOS KeywordDRIVEN ; WAVES
Indexed BySCI
Language英语
Funding OrganizationNIFS Collaboration Research Programs(NIFS09KUTR046 ; NIFS Collaboration Research Programs(NIFS09KUTR046 ; JSPS KAKENHI(JP1504231) ; JSPS KAKENHI(JP1504231) ; NIFS10KUTR048 ; NIFS10KUTR048 ; NIFS11KUTR059 ; NIFS11KUTR059 ; NIFS11KUTR069) ; NIFS11KUTR069) ; NIFS Collaboration Research Programs(NIFS09KUTR046 ; NIFS Collaboration Research Programs(NIFS09KUTR046 ; JSPS KAKENHI(JP1504231) ; JSPS KAKENHI(JP1504231) ; NIFS10KUTR048 ; NIFS10KUTR048 ; NIFS11KUTR059 ; NIFS11KUTR059 ; NIFS11KUTR069) ; NIFS11KUTR069)
WOS Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
WOS IDWOS:000412402000005
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33767
Collection中科院等离子体物理研究所
Affiliation1.Res Inst Appl Mech, Kasuga, Fukuoka 8168580, Japan
2.Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 3058577, Japan
3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
4.Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan
5.Univ Tokyo, Dept Complex Sci & Engn, Kashiwa, Chiba 2778561, Japan
6.Kyoto Univ, Dept Nucl Engn, Kyoto 6068501, Japan
7.Natl Inst Fusion Sci, Toki, Gifu 5095292, Japan
8.Natl Inst Quantum & Radiol Sci & Technol, Naka, Ibaraki 3110193, Japan
9.Kyoto Univ, Grad Sch Energy Sci, Kyoto 6068501, Japan
Recommended Citation
GB/T 7714
Idei, H.,Kariya, T.,Imai, T.,et al. Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak[J]. NUCLEAR FUSION,2017,57(12).
APA Idei, H..,Kariya, T..,Imai, T..,Mishra, K..,Onchi, T..,...&Toi, K..(2017).Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak.NUCLEAR FUSION,57(12).
MLA Idei, H.,et al."Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak".NUCLEAR FUSION 57.12(2017).
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