A stationary multi-component cathode modeling and ion trajectories for an inertial electrostatic confinement fusion device

Abstract

SUMMARYA new cathode modeling with stationary multi-component cathode approach is suggested for an inertial electrostatic confinement fusion device and some preliminary simulation studies based on the potential function of this cathode have been presented. The ions are accelerated due to the Coulomb force on a 2D plane and the central grid is assumed to have 6 point-wise and negatively charged at the middle. The model includes a repulsive force that stems from the screening effect of atoms at the vicinity of cathode. The simulations have proven that the particle trajectories are highly complex in the new potential well; in fact, the prediction of the particle route is observed to be strictly dependent on the control parameters such as the grid radius, ion current, voltage and initial position of the ion.

Electromagnetic Design and Simulation of a New Fusion Device

“…Since they operate at the order of kV scale fed by a dc source from the cathode, one should stabilize the device electrically in order to create a good plasma media. According to the literature the electrical power source should enable the confinement of the deuterium ions under the kV-scaled electrical potential [2], [3], [5]. In some applications, the chambers of the devices have cylindrical or spherical forms in relevance with the potential distribution which is used for the confinement of ions [6]- [8].…”

“…In one of the researches, the time-dependent solutions of the momentum and electrical equations were handled by Kurt on a two dimensional box [2]. Then, Kurt and his colleague introduced a new spherical IEC device with its three dimensional potential pattern [3], [6].…”