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Keywords
(7)
boltzmann distribution
Electrostatic Potential
Ion Beam
Numerical Simulation
Steady State
Electron Cyclotron Resonance Ion Source
Self Consistent
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Advanced PICOP algorithm with adaptive meshless field solver
Advanced PICOP algorithm with adaptive meshless field solver,10.1109/PPPS.2007.4652459,S. A. Galkin,B. P. Cluggish,J. S. Kim,S. Yu. Medvedev
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Advanced PICOP algorithm with adaptive meshless field solver
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S. A. Galkin
,
B. P. Cluggish
,
J. S. Kim
,
S. Yu. Medvedev
We have developed a new advanced ParticleIn CloudOfPoints (PICOP) algorithm, which solves macro particle motion equations using a meshless point structure (a cloud of points) as a reference basis to compute electrostatic fields. The cloud of points is iteratively adapted (number of points and their locations are varied) to the field structure. That allows resolving boundary and current layers, sheaths, etc. simultaneously with solution to an initial problem. The algorithm was applied to model ion extraction from an
electron cyclotron resonance ion source
(ECRIS). The IonEx code has been developed. The code computes the
steady state
trajectories of the extracted ions and the
electrostatic potential
from Poisson’s equation selfconsistently, assuming
Boltzmann distribution
for electrons. The process leads to the formation of a few microns thick plasma sheath inside extraction optics a few centimeters in size. The code resolves the potential drop in the sheath by adaptation of the cloud of points. Benchmark and
numerical simulation
of
ion beam
extraction are presented.
Published in 2007.
DOI:
10.1109/PPPS.2007.4652459
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References
(2)
Plasma physics via computer simulation
(
Citations: 1280
)
C. K. Birdsall
,
A. B. Langdon
Published in 1991.
Modeling Ion extraction from an ECR Ion source
(
Citations: 1
)
B. P. Cluggish
,
S. A. Galkin
,
J. S. Kim
Conference:
Particle Accelerator, IEEE Conference  PAC
, 2007