Supersonic molecular beam injection effects on tokamak plasma applied non-axisymmetric magnetic perturbation
| Autor: | Hyunsun Han, Yongkyoon In, Young-Mu Jeon, Hyungho Lee, Yong-Un Nam, K.D. Lee, S.W. Yoon, Sang-hee Hahn |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Tokamak Plasma Collisionality Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas law.invention Pulse (physics) Physics::Plasma Physics law 0103 physical sciences Electron temperature Supersonic speed sense organs Perturbation theory Atomic physics 010306 general physics Molecular beam |
| Zdroj: | Physics of Plasmas. 23:082518 |
| ISSN: | 1089-7674 1070-664X |
| Popis: | The change of tokamak plasma behavior by supersonic molecular beam injection (SMBI) was investigated by applying a three-dimensional magnetic perturbation that could suppress edge localized modes (ELMs). From the time trace of decreasing electron temperature and with increasing plasma density keeping the total confined energy constant, the SMBI seems to act as a cold pulse on the plasma. However, the ELM behaviors were changed drastically (i.e., the symptom of ELM suppression has disappeared). The plasma collisionality in the edge-pedestal region could play a role in the change of the ELM behaviors. |
| Databáze: | OpenAIRE |
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