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2003•IEEE Transactions on Plasma ScienceRequires access

Study of the effects of ECh power and pulse length on preionization in the KSTAR Tokamak

Young-Soon Bae, Won Namkung, Moo Hyun Cho, A.C. England

Open publisher page 7 citations

Abstract

In this paper, we present the results of a study of the preionization effects for the Korean Superconducting Tokamak Advanced Research (KSTAR) tokamak (R/sub 0/=1.8 m, a=0.5 m, /spl kappa/=2, /spl delta/=0.8, B/sub T/=3.5 T, I/sub p/=2 MA, T/sub pulse/=300 s) that is under construction by the Korea Basic Science Institute (KBSI). The preionization will be given by the Electron Cyclotron Heating (ECH) System with an 84-GHz 500-kW gyrotron tube being made by Communications and Power Industries. The ECH preionization effects are investigated by a 0-dimensional code (TECHP0D) that includes the operational scenarios of KSTAR tokamak. The code is now improved and advanced with carbon, oxygen, and iron impurity effects, and with the self and mutual inductances of seven pairs of superconducting poloidal coils for the KSTAR tokamak.

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What this paper is about

In this paper, we present the results of a study of the preionization effects for the Korean Superconducting Tokamak Advanced Research (KSTAR) tokamak (R/sub 0/=1.8 m, a=0.5 m, /spl kappa/=2, /spl delta/=0.8, B/sub T/=3.5 T, I/sub p/=2 MA, T/sub pulse/=300 s) that is under construction by the Korea Basic Science Institute (KBSI). The preionization will be given by the Electron Cyclotron Heating (ECH) System with an 84-GHz 500-kW gyrotron tube being made by Communications and Power Industries. The ECH preionization effects are investigated by a 0-dimensional code (TECHP0D) that includes the operational scenarios of KSTAR tokamak. The code is now improved and advanced with carbon, oxygen, and iron impurity effects, and with the self and mutual inductances of seven pairs of superconducting poloidal coils for the KSTAR tokamak.

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Available abstract

In this paper, we present the results of a study of the preionization effects for the Korean Superconducting Tokamak Advanced Research (KSTAR) tokamak (R/sub 0/=1.8 m, a=0.5 m, /spl kappa/=2, /spl delta/=0.8, B/sub T/=3.5 T, I/sub p/=2 MA, T/sub pulse/=300 s) that is under construction by the Korea Basic Science Institute (KBSI). The preionization will be given by the Electron Cyclotron Heating (ECH) System with an 84-GHz 500-kW gyrotron tube being made by Communications and Power Industries. The ECH preionization effects are investigated by a 0-dimensional code (TECHP0D) that includes the operational scenarios of KSTAR tokamak. The code is now improved and advanced with carbon, oxygen, and iron impurity effects, and with the self and mutual inductances of seven pairs of superconducting poloidal coils for the KSTAR tokamak.

Key concepts: KSTAR, Tokamak, Gyrotron, Cyclotron, Nuclear engineering, Physics, Materials science, Electrical engineering

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