ECRIS-2014 - List of Authors (Spaedtke, P.)

Paper

Title

Page

Combination of Two ECRIS Calculations: Plasma Electrons and Extracted Ions

38

S. Biri, R. Rácz
ATOMKI, Debrecen, Hungary
R. Lang, J. Mäder, F. Maimone, B.R. Schlei, P. Spädtke, K. Tinschert
GSI, Darmstadt, Germany

In strongly magnetized ECRIS plasmas collisions do not influence the path of the charged particle. Electrons and ions can move more freely only along the magnetic field line compared to the transverse direction. Extraction simulation requires that the trajectories of charged particles have to be traced through the plasma chamber. In previous simulations the particle density at the beginning of the trajectory deep inside the plasma has been unknown. Now the full 3D electron tracking within the plasma chamber has been combined with the generation of initial ion starting conditions including particle density for ion tracking. The TrapCAD code has been used to determine the electron spatial distribution in a certain energy window. The idea is that at the places where the electron reaches a specific energy, an ion trajectory can be started. The magnetic field has been modeled with OPERA. The computer code KOBRA3-INP has been used for ray tracing. First results will be discussed and compared with experimental experience. The number of affecting parameters on the operating conditions of the ion source may lead to a multi-dimensional optimization space for simulation.

Slides MOOAMH05 [10.655 MB]

Paper	Title	Page
MOOAMH05	Combination of Two ECRIS Calculations: Plasma Electrons and Extracted Ions	38
	S. Biri, R. Rácz ATOMKI, Debrecen, Hungary R. Lang, J. Mäder, F. Maimone, B.R. Schlei, P. Spädtke, K. Tinschert GSI, Darmstadt, Germany
	In strongly magnetized ECRIS plasmas collisions do not influence the path of the charged particle. Electrons and ions can move more freely only along the magnetic field line compared to the transverse direction. Extraction simulation requires that the trajectories of charged particles have to be traced through the plasma chamber. In previous simulations the particle density at the beginning of the trajectory deep inside the plasma has been unknown. Now the full 3D electron tracking within the plasma chamber has been combined with the generation of initial ion starting conditions including particle density for ion tracking. The TrapCAD code has been used to determine the electron spatial distribution in a certain energy window. The idea is that at the places where the electron reaches a specific energy, an ion trajectory can be started. The magnetic field has been modeled with OPERA. The computer code KOBRA3-INP has been used for ray tracing. First results will be discussed and compared with experimental experience. The number of affecting parameters on the operating conditions of the ion source may lead to a multi-dimensional optimization space for simulation.
	Slides MOOAMH05 [10.655 MB]