Asymmetry of Neoclassical Transport by Dipole Electric Field |
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Authors: | Wang Zhongtian Wang Long Southwestern Institute of Physics Chengdu China Institute of Physics Chinese Academy of Sciences Beijing China |
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Affiliation: | Southwestern Institute of Physics, Chengdu 610041, China;Institute of Physics, Chinese Academy of Sciences ,Beijing 100080, China |
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Abstract: | Effects of dipole electric fields on neoclassical transport are studied. Large asymmetry in transport is created. The dipole fields, which are in a negative R-direction, reduce the ion drift, increase electron drift, and change the steps of excursion due to collisions. It is found that different levels of dipole field intensities have different types of transport. For the lowest level of the dipole field, the transport returns to the neoclassical one. For the highest level of the dipole field, the transport is turned to be the turbulence transport similar to the pseudo-classical transport. Experimental data may be corresponded to a large level of the dipole field intensity. |
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Keywords: | asymmetry dipole electrical field turbulence |
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