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Efficient 3D Plasma Ion Source Modeling with Adaptive Mesh Refinement--FAR-TECH, Inc., 10350 Science Center Drive, Building 14, Suite 150, San Diego, CA 92121-1129; 858-455-6655, www.far-tech.com
Dr.
Jin-Soo Kim, Principal Investigator,
Dr.
Jin-Soo Kim, Business Official,
DOE Grant No. DE-FG02-04ER83953
Amount: $100,000
Current
and future experiments sponsored by the DOE’s Heavy Ion Fusion Program will
require higher brightness beams, allowing little or no aberration at the
emitter. To achieve this, accurate
computer modeling of the plasma ion source will be needed to correctly model the
plasma sheath region and time-dependent effects.
Several commercial codes exist, but all have limitations due to the
incompleteness of their modeling and/or their lack of usability as a module.
This project will develop a computer plasma source simulation module that
accurately models steady state and time dependent plasma sources, with the
capability of efficiently handling multiple spatial scale problems. Phase
I will develop a time-dependent, two dimensional plasma source module that can
be used as a standalone code or as a module in other codes.
The plasma sheath will be modeled using Adaptive Mesh Refinement (AMR),
to accurately and efficiently capture the multiple spatial scale nature of the
problem. A systematic study of
several interesting cases will be performed, and the model will be assessed with
respect to computational time and accuracy, with increasingly higher degrees of
AMR refinement. Phase II will
generalize the work to three dimensions.
Commercial
Applications and Other Benefits as
described by the awardee: In
addition to the application for Heavy Ion Fusion, an efficient, predictable,
three-dimension ion source code should find use in the ion lithography and
plasma processing industries.