Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Development and High Power RF Test of the Vacuum Feedthrough for KSTAR ICRF Antenna

  • Published : 2002.06.01
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Abstract

A 1-MW vacuum feedthrough for the KSTAR ICRF antenna is fabricated and high power RF test is performed. It is designed to have two alumina $(Al_2O_3)$ ceramic cylinders and O-ring seal instead of a brazed seal for good mechanical and thermal strength, which is important in long pulse or steady state operation. For cooling of the ceramics, dry air is circulated in a space between the two cylinders and the outer conductor. Independent cooling water channels are installed to cool the inner conductor of the feedthrough. RF high voltage test is performed using two kinds of ceramics with the purities of 99.7% and 97%. Stable operation is possible with the RF voltage of 30 kVp at long pulse of 300 sec without any severe damage.

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References

  1. G. Bosia, M. Makowski and G.Tonon, Plasma Phys. Control. Fusion, 40, A105 (1998) https://doi.org/10.1088/0741-3335/40/8A/009
  2. M. Saigusa, T. Fujii, H. Kimura, S. Moriyama, K.Annoh, M. Terakado, and N. Kobayashi, Fusion Engineering and Design, 24, 47 (1994) https://doi.org/10.1016/0920-3796(94)90036-1
  3. A. Kaye, J. Jacquinot, P. Lallia, and T. Wade, Fusion Technology, 11, 203 (1987) https://doi.org/10.13182/FST11-203-234
  4. G.S. Lee et. al., Nuclear Fusion, 40, 575 (2000) https://doi.org/10.1088/0029-5515/40/3Y/319
  5. B.G. Hong, J. Korean Phys. Soc, 36, 90 (2000)
  6. B.G. Hong, Y.D. Bae, C.K. Hwang, J.G. Kwak, M.H. Ju, D.W. Swain, P.M. Ryan and B.W. Riemer, Proc. of the 20th SOFT, Vol.1, p. 303 (1988)
  7. C.K. Hwang, B.G. Hong, and D. Swain, Fusion Engineering and Design, 45, 127 (1999) https://doi.org/10.1016/S0920-3796(99)00003-4
  8. H. Welder, F. Wesner, W. Becker, and R. Fritsch, Fusion Engineering and Design, 24, 75 (1994) https://doi.org/10.1016/0920-3796(94)90038-8
  9. JAER1, JAERI Report No. JAERI-memo 63-039 (1988)
  10. A. Kaye, T. Brown, V. Bhatnagar, P. Crawley, J. Jacquinot, R. Lobel, J. Plancoulaine, P.H. Rebut, T. Wade, and C. Walker, Fusion Engineering and Design, 24, 1 (1994) https://doi.org/10.1016/0920-3796(94)90034-5
  11. T. Mutoh, R. Kumazawa, T. Seki. F. Simpo, G. Nomura, T. Ido, and T. Watari, NIFS Report No. NIFS-552 (1998)
  12. T.L. Owens, F.W. Baity, D.J. Hoffman, and J.H. Whealton, Fusion Technology, 8, 381 (1985) https://doi.org/10.13182/FST85-A40074