Studies of an impulse breakdown process in an atmospheric air using ruby-laser scattering diagnostics

Kiichiro Uchino, Tetsuhiro Muraoka, Katsunori Muraoka, Masanori Akazaki

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Local measurements of impulse breakdown plasmas in an atmospheric air using ruby-laser scattering revealed that pressure as high as 12 atm (electron density蝱1.3ȕ1024m-3and temperature蝱3.4 eV) and an electric field of 2.8ȕ104V/m were reached in the arc channel just after the beginning of the discharge (t=0.4 Ɓsec), and that they rapidly approached respective values at DC discharge in the air. The pressure in the arc channel was found uniform across the channel radius each time, and the initial pressure in, and the expansion velocity of, the arc channel at t=0.4 Ɓsec, were enough to cause the resulting shock-wave expansion at later times.

Original languageEnglish
Pages (from-to)L696-L698
JournalJapanese Journal of Applied Physics
Volume21
Issue number11
DOIs
Publication statusPublished - Jan 1 1982

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Ruby
ruby lasers
impulses
breakdown
Scattering
arcs
Lasers
air
Air
scattering
Shock waves
Discharge (fluid mechanics)
expansion
Electric fields
Plasmas
shock waves
Electrons
direct current
radii
electric fields

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Studies of an impulse breakdown process in an atmospheric air using ruby-laser scattering diagnostics. / Uchino, Kiichiro; Muraoka, Tetsuhiro; Muraoka, Katsunori; Akazaki, Masanori.

In: Japanese Journal of Applied Physics, Vol. 21, No. 11, 01.01.1982, p. L696-L698.

Research output: Contribution to journalArticle

Uchino, Kiichiro ; Muraoka, Tetsuhiro ; Muraoka, Katsunori ; Akazaki, Masanori. / Studies of an impulse breakdown process in an atmospheric air using ruby-laser scattering diagnostics. In: Japanese Journal of Applied Physics. 1982 ; Vol. 21, No. 11. pp. L696-L698.
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