Relativistic Plasma Physics. Relativistic Electron-Positron Pair Plasmas.

Fully nonlinear electrostatic waves in electron–positron plasmas

“…Hardee and Rose 1978;Rao et al 1986;Gallant et al 1992;Liang et al 1998;Cowan 1999;Nakashima and Cowan 2002;Cattaert et al 2005). Significant quantities of positrons are also produced in the laboratory under high-energy conditions, such as in inertial confinement fusion schemes where ultra-intense laser pulses are employed, as well as in advanced tokamaks because of collisions of high-energy runaway electrons (e.g.…”

Edge plasma measurements near the minimum-B anchor cell of GAMMA10 using Langmuir probe and calorimeter arrays

“…6 Observed area with high floating potential and high heat-flow density corresponds to the direction of gradient-B drift of plasma ions. 9 Since the location of the main plates corresponding to the magnetic flux tube is sufficiently apart from the plasma boundary ͑r plate ജ 1.5 r plasma ͒, it is difficult for electrons to reach the plates across the magnetic field lines. From these results, the asymmetry of the edge plasma parameters measured in the outer-transition region is ascribed to the effect of ion drift motion in this region.…”

“…[6][7][8][9] The objective of this study is to build up a diagnostic system using Langmuir probe and calorimeter arrays installed on the anchor conducting plates and to investigate the edge plasma behavior in the nonaxisymmetric transition region. Figure 1 shows the schematic view of the GAMMA10 tandem mirror and the detail of an anchor cell together with the location of the diagnostics used for this study.…”

Characteristics of SMBI fueling with laval nozzle in GAMMA 10 based on experimental and simulation results

“…Three-dimensional mesh-model for DEGAS has been applied to the central-cell [12]. The limiters and antennae of the ICRF are precisely implemented in a realistic configuration in this model.…”