dorsal/arxiv
View SchemaPlasma heating due to X-B mode conversion in a cylindrical ECR plasma system
| Authors | Vipin K. Yadav, D. Bora |
|---|---|
| Categories | |
| ArXiv ID | physics/0410112 |
| URL | https://arxiv.org/abs/physics/0410112 |
Abstract
Extra Ordinary (X) mode conversion to Bernstein wave near Upper Hybrid Resonance (UHR) layer plays an important role in plasma heating through cyclotron resonance. Wave generation at UHR and parametric decay at high power has been observed during Electron Cyclotron Resonance (ECR) heating experiments in toroidal magnetic fusion devices. A small linear system with ECR and UHR layer within the system has been used to conduct experiments on X-B conversion and parametric decay process as a function of system parameters. Direct probing {\em in situ} is conducted and plasma heating is evidenced by soft x-ray emission measurement. Experiments are performed with hydrogen plasma produced with 160-800 W microwave power at 2.45 GHz of operating frequency at $10^{-3}$ mbar pressure. The axial magnetic field required for ECR is such that the resonant surface (B = 875 G) is situated at the geometrical axis of the plasma system. Experimental results will be presented in the paper.
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"abstract": "Extra Ordinary (X) mode conversion to Bernstein wave near Upper Hybrid\nResonance (UHR) layer plays an important role in plasma heating through\ncyclotron resonance. Wave generation at UHR and parametric decay at high power\nhas been observed during Electron Cyclotron Resonance (ECR) heating experiments\nin toroidal magnetic fusion devices. A small linear system with ECR and UHR\nlayer within the system has been used to conduct experiments on X-B conversion\nand parametric decay process as a function of system parameters. Direct probing\n{\\em in situ} is conducted and plasma heating is evidenced by soft x-ray\nemission measurement. Experiments are performed with hydrogen plasma produced\nwith 160-800 W microwave power at 2.45 GHz of operating frequency at $10^{-3}$\nmbar pressure. The axial magnetic field required for ECR is such that the\nresonant surface (B = 875 G) is situated at the geometrical axis of the plasma\nsystem. Experimental results will be presented in the paper.",
"arxiv_id": "physics/0410112",
"authors": [
"Vipin K. Yadav",
"D. Bora"
],
"categories": [
"physics.plasm-ph"
],
"title": "Plasma heating due to X-B mode conversion in a cylindrical ECR plasma system",
"url": "https://arxiv.org/abs/physics/0410112"
},
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