| Autor: |
Nie, L, Cheng, J, Huang, Y, Yan, L W, Yao, L H, Feng, B B, Dong, J Q, Xu, M, Zhao, K J, Yu, D L, Zhong, W L, Gao, J M, Yuan, C C, Huang, Z H, Kong, D F, Feng, Z, Liu, C H, Yao, K, Shang, J, Yang, Q W |
| Předmět: |
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| Zdroj: |
Plasma Physics & Controlled Fusion; May2014, Vol. 56 Issue 5, p055006-055012, 7p |
| Abstrakt: |
Edge localized mode (ELM)-filament statistical characteristics and intermittent convective transport are studied during ELM mitigation (10–30�ms) induced by supersonic molecular beam injection (SMBI) on the HL-2A tokamak. Langmuir probe data show that the burst rate of large amplitude filaments (δne�>�4σ) decreases by 30–50% and their radial velocity decreases by 40–60%, which is an indication of an amplitude reduction. A decrease of long-range correlation along the magnetic flux surface is observed after SMBI, indicating a role of electron–ion collisionality on the filament parallel current in the ELM mitigation time. The transient particle and heat fluxes decrease about 40–50% and 50–60%, respectively. These observations indicate that SMBI might be an effective method to suppress the intermittent convective transport. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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