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Electron Heat Diffusivity in the HT-7 Tokamak with Si-Coating Wall |
| ZHANG Xian-Mei;WAN Bao-Nian;RUAN Huai-Lin;WU Zhen-Wei |
| Institute of Plasma Physics, Chinese Academy of Sciences,
P.O.Box 1126, Hefei 230031
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| Cite this article: |
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ZHANG Xian-Mei, WAN Bao-Nian, RUAN Huai-Lin et al 2001 Chin. Phys. Lett. 18 1090-1091 |
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Abstract Electron heat diffusivity inferred from the electron power balance was studied in the ohmically heated plasma on an HT-7 tokamak. The results obtained before and after siliconization were compared and it is found that the diffusivity is reduced obviously in the half of the outer region (r/a > 0.5) after siliconization, which was the reason why energy confinement was improved after siliconization.
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| Keywords:
52.25.Fi
52.55.Dy
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Published: 01 August 2001
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| PACS: |
52.25.Fi
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(Transport properties)
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52.55.Dy
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(General theory and basic studies of plasma lifetime, particle and heat loss, energy balance, field structure, etc.)
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