A forced gas-cooled single-disk window using silicon nitride composite for high power CW millimeter waves

T. Shimozuma, S. Morimoto, M. Sato, Y. Takita, S. Ito, S. Kubo, H. Idei, K. Ohkubo, T. Watari

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

Silicon nitride composite as a candidate of a window material for high power CW (Continuous Wave) millimeter-waves was high power tested especially with a surface cooling by impinging gas nitrogen jets on the single-disk surface. Gas-cooling dramatically suppressed the temperature of the window disk even with gas flow rate of around 100 1/min. With gas cooling of 4651/min., 130kW CW power of HE11 mode could be transmitted through the silicon nitride window with a diameter of 88.9mm. The peak window temperature was completely saturated on 123.6°C. Without gas-cooling it did not saturate and reached 323°C during 30 seconds pulse. A possibility of 1MW CW single disk Brewster windows with a forced gas-cooling is discussed, resulting in convinced prospects of the windows with realistic size and thickness.

本文言語英語
ページ(範囲)1479-1493
ページ数15
ジャーナルInternational Journal of Infrared and Millimeter Waves
18
8
DOI
出版ステータス出版済み - 8 1997
外部発表はい

All Science Journal Classification (ASJC) codes

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering

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