Gas Temperature and Cu Vapor Density in an Impulse Discharge

• Sakoda Tatsuya

  Kyushu University

• Otsubo Masahisa

  Miyazaki University

• Honda Chikahisa

  Miyazaki University

• Nieda Hiroshi

  Kumamoto Institute of Technology

Bibliographic Information

Other Title

• Gas Temperature and Cu Vapor Density in

Abstract

The laser scattering techniques are very powerful for the diagnostics of impulse discharges. Characteristics of gas temperature, density of Cu atoms from electrodes and electron density in and near an impulse discharge channel at an air pressure of 66.7hPa were investigated. The gas temperature took much higher values in the constricted regions of the channel, especially in the two regions near the tips of anode and cathode along the positive column. At the transition from glow to arc, the gas temperature and the densities of Cu atoms and electrons in the discharge channel became high with a rise of discharge current, and reached maximum values of 4800K, 9×10¹⁸m^-3 and 8×10²³m^-3, respectively. Both the positions of peaks of the gas temperature and the density of Cu atoms moved quickly from the inside toward the outside of discharge channel; their moving velocities decreased from 1200m/s to 200m/s within 20μs.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 116 (11), 953-958, 1996

  The Institute of Electrical Engineers of Japan

Keywords

• Laser scattering techniques
• Impulse discharge
• Glow-to-arc transition
• CARS
• LIF
• Thomson scattering

Details

• CRID: 1390001204599227904
• NII Article ID: 130006839055
• NII Article ID: 10002820564
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms1990.116.11_953
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 4067376
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4067376
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms1990/116/11/116_11_953/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed