DOI QR코드

DOI QR Code

Particle Simulation on the Effect of Grid Cathode Geometry in SCBF Device

SCBF 장치에서 그리드 음극 구조의 영향에 대한 입자 시뮬레이션

  • 주흥진 (한양대학교 전기공학과) ;
  • 박정호 (한양대학교 전기공학과) ;
  • 고광철 (한양대학교 전기제어생체공학부)
  • Published : 2007.08.01

Abstract

In 2-dimensional SCBF (Spherically Convergent Beam Fusion) device, the effect on neutron production rate of the grid cathode geometry was simulated. The motion of Particles was tracked using Monte Carlo Method including the atomic and molecular collision processes and potential distribution was calculated by Finite Element Method, Main processes of the discharge were the ionization of $D_2$ by fast $D_2^+\;ion$. As the number of cathode rings was small and the size of grid cathode decreased, the ion current increased and neutron production rate will also increase. The star mode discharge which is a very important characteristic in SCBF device, was confirmed by the ionization position.

Keywords

References

  1. 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 https://doi.org/10.1016/S0920-3796(97)00199-3
  2. 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, p. 611, 1997 https://doi.org/10.1088/0029-5515/37/5/I04
  3. K. Tomiyasu, J. F. Santarius, and G. L. Kulcinski, 'Numerical Simulation for UW-IEC Device', The 6th U.S.-Japan IEC Workshop, 2003
  4. C. K. Birdsall, 'Particle in cell charged particle simulations, plus Monte Carlo collisions with neutral atoms, PIC-MCC', IEEE Trans. on Plasma Sci., Vol. 19, p. 65, 1991 https://doi.org/10.1109/27.106800
  5. 日本電氣學會編, '气体放電 シミュレ-シヨン技法', 第 140号, 1974
  6. T. Tabata and T. Shirai, 'Analytic cross sections for collisions of $H^+$, $H_2^+$, $H_3^+$, H, Hz, and $H^{\wedge}$ with hydrogen molecules', Atomic Data and Nuclear Tables, Vol. 76, p. 1, 2000 https://doi.org/10.1006/adnd.2000.0835
  7. 주홍진, 박정호, 고광철, 'SCBF 장치에서 이온전류에 대한 포텐셜 우물 구조의 영향', 전기전자재료학회논문지, 20권, 5호, p. 471, 2007 https://doi.org/10.4313/JKEM.2007.20.5.471
  8. N. Sato, 'Discharge current induced by the motion of charged particles', J. Phys. D, Vol. 13, p. L3, 1980 https://doi.org/10.1088/0022-3727/13/1/002
  9. T. Takamatsu, T. Mizutani, M. Imoto, K. Masuda, H. Toku, K. Nagasaki, and K. Yoshikawa, 'Improvement of an IEC Device Performance by Use of Magnetron Ion Sources', The 6th U.S.-Japan IEC Workshop, 2003