Comparison of Breakdown Characteristics in Copper and Stainless Steel under High RF Field with Narrow Waveguide

DOI Web Site Web Site 22 References

Bibliographic Information

Other Title
  • 狭導波管を用いた銅及びステンレス材での高電界ＲＦ放電特性の比較
  • キョウドウハカン オ モチイタ ドウ オヨビ ステンレスザイ デ ノ コウデンカイ RF ホウデン トクセイ ノ ヒカク

Search this article

Abstract

To study the characteristics of breakdowns in different materials under a high RF field, a high-gradient experiment was proposed with using narrow waveguides having a field of around 140 MV/m at 50 MW power. Two experiments, one on copper (OFC) and another on stainless-steel (AISI-316L), were done. The breakdown rate of the copper waveguide was found to be larger than that of the stainless-steel waveguide at fields higher than several tens of megavolts per meter. The surfaces of both materials were observed after high-field experiments. The area suffering from heavy breakdowns was found to be rugged for the copper waveguide, while that of the stainless-steel smoother than the copper case, even though the heights of dips and bumps were almost the same at 20∼30 microns for the two materials. From these results, it was proven that the breakdown study using narrow waveguide under the high gradient field offered great potential.

Journal

References(22)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top