ECH and hhfw start-up experiments on the TST-2 spherical tokamak

A. Ejiri; T. Oosako; J. Tsujimura; Y. Shimada; Y. Takase; Y. Torii; M. Sasaki; H. Tqjo; T. Masuda; H. Nuga; N. Sumitomo; S. Kainaga; J. Sugiyama; N. Tsujii

doi:10.13182/fst07-a1341

ECH and hhfw start-up experiments on the TST-2 spherical tokamak

A. Ejiri, T. Oosako, J. Tsujimura, Y. Shimada, Y. Takase, Y. Torii, M. Sasaki, H. Tqjo, T. Masuda, H. Nuga, N. Sumitomo, S. Kainaga, J. Sugiyama, N. Tsujii

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

Abstract

Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.

Original language	English
Pages (from-to)	168-170
Number of pages	3
Journal	Fusion Science and Technology
Volume	51
Issue number	2 T.
DOIs	https://doi.org/10.13182/fst07-a1341
Publication status	Published - Feb 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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10.13182/fst07-a1341

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title = "ECH and hhfw start-up experiments on the TST-2 spherical tokamak",

abstract = "Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.",

author = "A. Ejiri and T. Oosako and J. Tsujimura and Y. Shimada and Y. Takase and Y. Torii and M. Sasaki and H. Tqjo and T. Masuda and H. Nuga and N. Sumitomo and S. Kainaga and J. Sugiyama and N. Tsujii",

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volume = "51",

pages = "168--170",

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publisher = "American Nuclear Society",

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TY - JOUR

T1 - ECH and hhfw start-up experiments on the TST-2 spherical tokamak

AU - Ejiri, A.

AU - Oosako, T.

AU - Tsujimura, J.

AU - Shimada, Y.

AU - Takase, Y.

AU - Torii, Y.

AU - Sasaki, M.

AU - Tqjo, H.

AU - Masuda, T.

AU - Nuga, H.

AU - Sumitomo, N.

AU - Kainaga, S.

AU - Sugiyama, J.

AU - Tsujii, N.

PY - 2007/2

Y1 - 2007/2

N2 - Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.

AB - Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.

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JO - Fusion Science and Technology

JF - Fusion Science and Technology

IS - 2 T.

ER -

ECH and hhfw start-up experiments on the TST-2 spherical tokamak

Abstract

All Science Journal Classification (ASJC) codes

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