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IBSIMU: a three-dimensional simulation software for charged particle optics.

T Kalvas¹, O Tarvainen, T Ropponen

¹Department of Physics, University of Jyväskylä, Jyväskylä 40500, Finland. taneli.kalvas@jyu.fi

The Review of Scientific Instruments

|March 3, 2010

Summary

The IBSIMU simulation code models charged particle optics, including space charge effects. Its versatile 3D capabilities and open-source nature make it suitable for various scientific applications in ion source design.

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Area of Science:

Plasma Physics and Engineering
Computational Physics
Beam Optics

Background:

Charged particle optics simulations are crucial for designing ion sources and accelerators.
Existing simulation tools may lack the flexibility for complex geometries or space charge effects.
The development of advanced simulation codes is essential for scientific progress in particle beam applications.

Purpose of the Study:

To introduce and describe the general-purpose three-dimensional (3D) simulation code IBSIMU.
To highlight its capabilities for modeling charged particle optics with space charge effects.
To showcase its application in various ion source design and research projects.

Main Methods:

Utilizes a nonlinear Finite Difference Method (FDM) Poisson's equation solver with a stabilized biconjugate gradient method and ILU0 preconditioning for electrostatic fields.
Employs a nonlinear plasma model for plasma extraction simulations.
Solves particle trajectories using an adaptive Runge-Kutta method.
Supports steady-state and time-dependent problems in cylindrical, 2D (slit), and full 3D geometries.

Main Results:

IBSIMU has been successfully applied to model the 14 GHz Electron Cyclotron Resonance (ECR) ion source extraction.
The code facilitated the design of a four-electrode extraction for a 2.45 GHz microwave ion source.
It was used to design a grid extraction for generating large uniform beams simulating solar wind conditions.
IBSIMU aided in designing a H(-) extraction with electron dumping for Texas A&M University.

Conclusions:

IBSIMU is a versatile, open-source simulation code well-suited for charged particle optics and space charge modeling.
Its advanced numerical methods and flexible geometry support enable effective design and analysis of various ion sources.
The code's successful application across diverse projects demonstrates its utility in scientific research and development.