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- W1974896095 abstract "Transverse diffusion coefficients in a toroidal pinch are investigated for three regions of collision frequencies. The configuration of a toroidal pinch is characterized by a large poloidal magnetic field B P comparable to a toroidal magnetic field B T . We calculated diffusion coefficients following the scheme of Galeev and Sagdeev. In a toroidal pinch particles can be trapped in a local magnetic mirror formed by both a toroidal magnetic field and a poloidal magnetic field. Furthermore B P ≃ B T reduces the connection length of a toroidal pinch. Transverse diffusion coefficients including these effects are shown to be smaller than D GS which is given by Galeev and Sagdeev. in the banana region (D_{bot}{simeq}D_{text{GS}}sqrt{delta/varepsilon}) is obtained and in the plateau region D ⊥ ≃ D GS (δ 2 / ε 2 ), where ε denotes an aspect ratio and a small parameter δ denotes the inhomogeneity of the toroidal magnetic field in the toroidal pinch. Here it is noted that a safety factor included in D ⊥ may be smaller than or comparable to unity. In the MHD region D ⊥ also includes a factor δ/ ε ." @default.
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- W1974896095 date "1973-01-01" @default.
- W1974896095 modified "2023-10-17" @default.
- W1974896095 title "Collisional Diffusion in a Toroidal Pinch" @default.
- W1974896095 cites W1980706548 @default.
- W1974896095 doi "https://doi.org/10.1143/jpsj.34.181" @default.
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