# Poloidal velocity of impurity ions in neoclassical theory

## Related Articles

- Internal kink mode stabilization and the properties of auxiliary heated ions. Graves, Jonathan P. // Physics of Plasmas;Sep2005, Vol. 12 Issue 9, p090908
The stability of the internal kink mode is analyzed in terms of the essential properties of auxiliary heated ions. A fundamental difference between fusion born alpha particles and auxiliary heated ions is that the latter are typically anisotropically distributed. The effect of anisotropy, which...

- Effects of the radial electric field on the confinement of trapped fast ions in the Wendelstein 7-X and Helias reactor. Kolesnichenko, Ya. I.; Lutsenko, V. V.; Tykhyy, A. V.; Weller, A.; Werner, A.; Wobig, H.; Geiger, J. // Physics of Plasmas;Jul2006, Vol. 13 Issue 7, p072504
Confinement of trapped fast ions in the Wendelstein-line stellarators in the presence of the radial electric field, Er, is studied. It is shown that negative electric field improves the confinement; in particular, a radially localized field can play the role of a transport barrier for the ions...

- Trapping of hydrogen in argon-implanted crystalline silicon. Ma, Y.; Job, R.; Düngen, W.; Huang, Y. L.; Fahrner, W. R.; Beaufort, M. F.; Rousselet, S.; Horstmann, J. T. // Applied Physics Letters;6/20/2005, Vol. 86 Issue 25, p252109
Crystalline silicon wafers are implanted with argon ions and subsequently hydrogenated by H-plasma treatments (Sample A). The control silicon samples are solely treated by the H-plasma under identical conditions (Sample B). Depth-resolved Î¼-Raman spectroscopy and cross-sectional transmission...

- Modeling positive ion current to a planar probe in low-pressure electronegative discharges. Chung, T. H. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p063503
A fluid model is utilized to describe the plasma-sheath boundary for a negatively biased planar probe immersed in electronegative plasmas. The model equations are solved on the scale of the electron Debye length and calculate the spatial distributions of electric potential, velocity, and density...

- Design of the new magnetic sensors for Joint European Torus. Coccorese, V.; Albanese, R.; Altmann, H.; Cramp, S.; Edlington, T.; Fullard, K.; Gerasimov, S.; Huntley, S.; Lam, N.; Loving, A.; Riccardo, V.; Sartori, F.; Marren, C.; McCarron, E.; Sowden, C.; Tidmarsh, J.; Basso, F.; Cenedese, A.; Chitarin, G.; DegliAgostini, F. // Review of Scientific Instruments;Oct2004 Part I & II, Vol. 75 Issue 10, p4311
A new magnetic diagnostics system has been designed for the 2005 Joint European Torus (JET) experimental campaigns onward. The new system, which adds to the existing sensors, aims to improve the JET safety, reliability, and performance, with respect to: (i) equilibrium reconstruction; (ii)...

- Gyrokinetic verification of the persistence of kinetic ballooning modes in the magnetohydrodynamic second stability regime. Joiner, N.; Hirose, A. // Physics of Plasmas;Aug2008, Vol. 15 Issue 8, p082107
The kinetic ballooning mode (KBM) has been shown in previous work to be unstable within the magnetohydrodynamic (MHD) region (in sâ-Î± space) of second stability [Hirose et al., Phys. Rev. Lett. 72, 3993 (2004)]. In this work we verify this result using the gyrokinetic code GS2...

- Calculation of resistive magnetohydrodynamics and two-fluid tearing modes by example of reversed-field-pinch-like plasma. Svidzinski, V. A.; Li, H. // Physics of Plasmas;May2008, Vol. 15 Issue 5, p052106
An algorithm suitable for numerical solution of linear eigenmode problems in resistive magnetohydrodynamics (MHD) and two-fluid MHD models without prior approximations is presented. For these plasma models, sets of equations suitable for numerical solution are derived and the details of the...

- Experimental studies of transverse metastable ion velocity distribution functions in the presheath of a weakly collisional argon plasma. Dongsoo Lee; Hershkowitz, Noah; Severn, Greg // Physics of Plasmas;Aug2008, Vol. 15 Issue 8, p083503
Laser-induced fluorescence measurements of the transverse metastable ion velocity distribution function near a negatively biased plate in a low temperature (Te<1 eV), low pressure (p0<1 mTorr) dc multi-dipole argon discharge plasma have been made with a diode laser. The metastable argon ions in...

- Critical Î”â€² for stability of viscoresistive tearing modes. Grasso, D.; Hastie, R. J.; Porcelli, F.; Tebaldi, C. // Physics of Plasmas;Jul2008, Vol. 15 Issue 7, p072113
An analytic expression for the stability threshold of linear tearing modes is derived. The magnetized plasma is described in terms of a standard viscoresistive magnetohydrodynamic model. The analytic derivation requires an extension of the standard layer equation that represents an approximation...