Year: 1999
Type: article
Abstract: The ion beam extraction from an ECR (Electron Cyclotron Resonance) source is aected by many parameters as: geometry and applied potentials, magnetic ux density distribution including the hexapole contribution, space charge of the extracted beam and the shape of the plasma boundary.This plasma boundary itself is determined by the plasma density, the extraction eld strength, and the electron distribution of slow electrons.A 2 D s i m ulation of the electrostatic potentials including the space charge and the corresponding ion trajectories was used to compare our experimental results of two dierent extraction geometries.The fact that the ion density distribution within the plasma is in uenced by the magnetic multipole distribution, formed by the magnetic hexapole eld requires a 3D simulation.
Authors: Spädtke, P, Tinschert, K
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7046209498