论文信息 - Near‐surface sputtered particle transport for an oblique incidence magnetic field plasma

Near‐surface sputtered particle transport for an oblique incidence magnetic field plasma

Near‐surface sputtered particle transport has been analyzed numerically using models of sputtering, sheath parameters, and impurity collisions with a background D–T plasma. Tungsten and carbon sputtering was examined, for tokamak divertor plasma conditions. Redeposited ion parameters computed include the charge state, transit time, energy, and angle of incidence. A regime of operation for finite self‐sputtering of tungsten has been identified. This regime is broader than previous estimates. Results for energetically sputtered and thermally sputtered carbon are compared.

Jeffrey N. Brooks | J. Brooks

[1] J. Brooks,et al. Trajectories of charged particles traversing a plasma sheath in an oblique magnetic field , 1984 .

[2] L. Spitzer. Physics of fully ionized gases , 1956 .

[3] F. J. Smith,et al. Recommended Data on the Electron Impact Ionization of Light Atoms and Ions , 1983 .

[4] J. Bohdansky,et al. Erosion of carbon due to bombardment with energetic ions at temperatures up to 2000 K , 1982 .

[5] W. K. Terry,et al. Interaction of impurity ions with a weakly non‐Maxwellian simple hydrogenic plasma , 1988 .

[6] R. Chodura,et al. Plasma–wall transition in an oblique magnetic field , 1982 .

[7] B. Bein,et al. Electric Sheath Between a Metal Surface and a Magnetized Plasma , 1981 .

[8] J. Brooks. Temperature limit of a graphite divertor surface due to self-sputtering and radiation enhanced sublimation , 1990 .

[9] Jeffrey N. Brooks,et al. Modeling and Analysis of Erosion and Redeposition For Limiter and Divertor Impurity Control Systems , 1983 .

[10] M. W. Thompson. II. The energy spectrum of ejected atoms during the high energy sputtering of gold , 1968 .

[11] Douglass E. Post,et al. Physics of Plasma-Wall Interactions in Controlled Fusion , 1986, Springer US.