• 제목/요약/키워드: Gas Discharge

검색결과 1,514건 처리시간 0.025초

A 30 W Copper Vapor Laser Using a Vacuum Tube Based Pulse Generator (진공관 전원방식 30 W급 구리증기레이저)

  • 진정태;차병헌;김철중;이흥호
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • 제52권12호
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    • pp.568-572
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    • 2003
  • A longitudinal discharge heated copper vapor laser with internal diameter 28 mm and discharge length 1.3 m has been constructed and tested. At the discharging voltage 15.2 kV, pulse repetition rate 10 kHz, buffer gas pressure 40 mbar, and internal temperature of the laser plasma tube $1520^{\circ}C$, it delivers more than 30 W average laser outputs.

A Study on Penning Effect in Plasma Discharge (플라즈마 방전에서 패닝 효과에 관한 연구)

  • Lee, Jong-chan;Lee, Cheong-hak;Park, Dae-hee
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 한국전기전자재료학회 1997년도 추계학술대회 논문집
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    • pp.515-517
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    • 1997
  • In this paper, the penning effect was studded to control accelerating of the ionization that means Increasing of cross-sectional collision through penning reactions in the plasma cells of Hg-Ar-Ne (x: 10-x, 60Torr) gas discharge under various concentrations of Ar.

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Improving the efficiency in discharge pumped excimer laser (방전여기 엑시머 레이저의 고효율화 방안)

  • Lee Young-Woo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 한국해양정보통신학회 2006년도 춘계종합학술대회
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    • pp.368-370
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    • 2006
  • 자외선영역에서 발진하는 엑시머 레이저 장치의 가스 장수명화에 의한 고효율화 방안을 제안하였다. 가스수명에 대하여 불소$(F_2)$의 감소와 불순물 발생에 의한 출력 변화의 이론적 해석 결과를 보고한다.

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Experimental Investigation of Ion Mobility Measurements in Oxygen under Different Gas Pressures

  • Liu, Yun-Peng;Huang, Shi-long
    • Journal of Electrical Engineering and Technology
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    • 제12권2호
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    • pp.852-857
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    • 2017
  • In this paper, measurements of ion mobility were performed in oxygen at gas pressures of 44.52 - 101.19 kPa using the drift tube method. Over this pressure range, mobility values were within the limits of 1.796 to $3.821cm^2{\cdot}V^{-1}{\cdot}s^{-1}$ were determined and ion mobility shown to decrease non-linearly with increasing gas pressure towards a certain level of saturation. Ion mobility measured in air was lower than that measured in oxygen at the same gas pressure. Finally, a parameter correction method for calibrating the relationship between the ion mobility and gas pressure in oxygen was proposed.