ECRIS-2014 - List of Authors (Rácz, R.)

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]

THOMMH02

Application of an ECR Ion Source for Ionic Functionalization of Implant Materials on the Nanoscale

135

R. Rácz, S. Biri, A. Csik, P. Hajdu, K. Vad
ATOMKI, Debrecen, Hungary
J. Bakó, I. Csarnovics, Cs. Hegedűs, V. Hegedűs, S. Kokenyesi, J. Pálinkás, T. Radics
University Debrecen, Debrecen, Hungary

Surface modification by variously charged heavy ions plays an increasingly important role since functionalization of surfaces and/or deeper layers at micro- and nanoscopic scale can be biologically useful for materials of medical implants. The functionalized surfaces have a huge potential in the field of nanotechnology, sensor devices as well. Our group explores the physical and biological effect of such treatments. In the recent phase of the research work the implantation of titanium and zirconium-dioxide samples by calcium, gold and silicon ions is required. The 14.5 GHz Electron Cyclotron Resonance Ion Source (ECRIS) of Atomki - a classical room-temperature ion source - was used in this study as an ion implanter to deliver low energy particles from wide range of elements. A new vacuum chamber and a sample holder for effective irradiation and the production of the beam itself were developed. The technical details of the irradiation and the first result of the physical investigations are described in this paper.

Slides THOMMH02 [1.769 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]

THOMMH02	Application of an ECR Ion Source for Ionic Functionalization of Implant Materials on the Nanoscale	135
	R. Rácz, S. Biri, A. Csik, P. Hajdu, K. Vad ATOMKI, Debrecen, Hungary J. Bakó, I. Csarnovics, Cs. Hegedűs, V. Hegedűs, S. Kokenyesi, J. Pálinkás, T. Radics University Debrecen, Debrecen, Hungary
	Surface modification by variously charged heavy ions plays an increasingly important role since functionalization of surfaces and/or deeper layers at micro- and nanoscopic scale can be biologically useful for materials of medical implants. The functionalized surfaces have a huge potential in the field of nanotechnology, sensor devices as well. Our group explores the physical and biological effect of such treatments. In the recent phase of the research work the implantation of titanium and zirconium-dioxide samples by calcium, gold and silicon ions is required. The 14.5 GHz Electron Cyclotron Resonance Ion Source (ECRIS) of Atomki - a classical room-temperature ion source - was used in this study as an ion implanter to deliver low energy particles from wide range of elements. A new vacuum chamber and a sample holder for effective irradiation and the production of the beam itself were developed. The technical details of the irradiation and the first result of the physical investigations are described in this paper.
	Slides THOMMH02 [1.769 MB]