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http://dx.doi.org/10.4313/JKEM.2007.20.5.471

Effect of Potential Well Structure on Ion Current in SCBF Device  

Ju, Heung-Jin (한양대학교 전기공학과)
Park, Jeong-Ho (한양대학교 전기공학과)
Ko, Kwang-Cheol (한양대학교 전기제어생체공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.5, 2007 , pp. 471-477 More about this Journal
Abstract
SCBF(Spherically Convergent Beam Fusion) device has been studied as a neutron source. Neutron production rate is a most important factor for the application of SCBF device and is proportional to the square of the ion current[1]. It is regarded generally that some correlations between the potential well structure and the ion current exist. In this paper, the ion current and potential distribution were calculated in a variety of grid cathode geometries using FEM-FCT method. Single potential well structure was certified inside the grid cathode. The deeper the potential well became, the higher the ion current due to the high electric field near the grid cathode became.
Keywords
SCBF device; Neutron production rate; Ion current; Potential well structure; FEM-FCT method; Grid cathode;
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1 현정수, 최승길, 심재학, 강형부, 'SF6 가스 방전 특성의 유한요소해석', 전기전자재료학회논문지, 13권, 3호, p. 265, 2000
2 N. Sato, 'Discharge current induced by the motion of charged particles', J. Phys. D, Vol. 13, p. L3, 1980   DOI   ScienceOn
3 S. K. Dhali and P. F. Williams, 'Twodimensional studies of streamer in gases', J. Appl. Phys., Vol. 62, No. 12, p. 4696, 1987   DOI
4 R. Lohner, 'Finite element flux-corrected transport(FEM-FCT) for the euler and navier-stokes equation', Int'l J. Num. method in fluid, Vol. 7, p. 1093, 1987   DOI   ScienceOn
5 M. Ohnishi, Y. Yamamoto, M. Hasegawa, K. Yoshikawa, and G. H. Miley, 'Study on an inertial electrostatic confinement fusion as a portable neutron source', Fusion Engineering and Design, Vol. 42, p. 207, 1998   DOI   ScienceOn
6 A. L. Wehmeyer, R. F. Radel, G. L. Kulcinski, 'Optimizing neutron production rates form D-D fusion in an inertial electrostatic confinement device', Fusion Sci. Technol., Vol. 47, No. 4, p. 1260, 2005   DOI
7 R. L. Hirsch, 'Inertial-electrostatic confinement of ionized fusion gases', Appl. Phys., Vol. 38, No. 11, p. 4522, 1969
8 S. K. Wong and N. A. Krall, 'Potential well formation by injection of electrons with various energy distributions into a sphere or a slab', Phys. Fluids, B4, p. 4140, 1992
9 M. Ohnishi, K. H. Sato, Y. Yamamoto, and K. Yoshikawa, 'Correlation between potential well structure and neutron production in inertial electrostatic confinement fusion', Nuclear Fusion, Vol. 37, No. 5, p. 611, 1997   DOI   ScienceOn