Optimal Design of a Grid-Cathode Structure in a Spherically Convergent Beam Fusion Device by Response-Surface Methodology Combined With Experimental Design
- Authors
- Ju, Heung-Jin; Kim, Bongseong; Park, Jeong-Ho; Ko, Kwang-Cheol
- Issue Date
- Oct-2010
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Full factorial design (FFD); ion current; optimal grid-cathode structure; response-surfacemethodology (RSM); spherically convergent beam fusion (SCBF) device
- Citation
- IEEE TRANSACTIONS ON PLASMA SCIENCE, v.38, no.10, pp.2548 - 2553
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON PLASMA SCIENCE
- Volume
- 38
- Number
- 10
- Start Page
- 2548
- End Page
- 2553
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173635
- DOI
- 10.1109/TPS.2010.2061868
- ISSN
- 0093-3813
- Abstract
- To apply fusion energy through a spherically convergent beam fusion (SCBF) device as a portable neutron source, neutron production is very important. The rate of production is greatly dependent upon the ion current, which is closely related to the potential-well structure within a grid cathode. In this paper, we propose a design method by varying the cathode-ring sizes to produce an optimal grid-cathode structure in an SCBF device. The optimization is based on response-surface methodology (RSM); however, full factorial design is also applied to increase the precision of optimization and reduce experiment iteration in the application of RSM. The finite-element method, combined with the flux-corrected transport algorithm, is employed to calculate the ion current. From the optimized model, a higher ion current is calculated, resulting in a deeper potential well.
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