Speed of Current Sheath in Pulsed Discharge Plasma Device

펄스형 방전플라스마 장치에서 current sheath의 속력

  • Choi, Woon Sang (Department of Ophthalmic Optics, Pusan Women's College) ;
  • Choi, Ho Seong (Department of Ophthalmic Optics, Pusan Women's College)
  • 최운상 (부산여자대학 안경광학과) ;
  • 최호성 (부산여자대학 안경광학과)
  • Received : 2006.12.05
  • Published : 2007.01.31

Abstract

The axial speed of plasma current sheath was measured with Rogowski coils and compared with the theory of snowplow model. Current sheath speed is measured with $10^6cm/s$. The speed of light gas, $H_2$ and He were similar to the theory of model, but the heavy gas, Ar was not similar to the theory. The disagreement of the heavy gas was guessed as a results of the instability of the current sheath.

펄스형 방전플라스마장치에서 축방향 플라스마 curren sheath의 속력을 측정하였고, snowplow 모델과 비교하였다. Current sheath의 속력은 $10^6cm/s$로 측정되었다. 측정된 속력 중에서 가벼운 기체인 수소와 헬륨은 모델의 이론과 비슷한 결과가 나왔으나 무거운 기체인 아르곤은 이론과 조금 벗어났다. 그 이유는 current sheath의 불안정성 때문으로 추정된다.

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