Inspec keywords: schlieren systems; corona; electric current measurement; time resolved spectroscopy; fibre optic sensors; nitrogen; velocity measurement; spectrochemical analysis; image intensifiers; CCD image sensors; time of flight spectroscopy; spectra of diatomic inorganic molecules; photographic applications; streak photography; time of flight spectra; voltage measurement; plasma diagnostic techniques; electric breakdown of gases; particle beam diagnostics

Other keywords: time-of-flight method; rotational structure; atmospheric streamer discharges; primary streamer phase; streamer diameter; secondary streamer; Schlieren photographs; high voltage pulses; discharge phases; wire electrodes; optical fibres; streamer velocity; gated image intensifier; residual streamer channels; N₂ emission line; positive streamer corona; N₂; visualisation; time-resolved spectroscopic measurements; electron energy; optical diagnostics; electrical diagnostics; neutral gas temperature

Subjects: Gaseous insulation, breakdown and discharges; Voltage measurement; Image sensors; Velocity, acceleration and rotation measurement; Plasma diagnostic techniques and instrumentation; Detection of radiation (bolometers, photoelectric cells, i.r. and submillimetre waves detection); Glow and corona discharges; Optical spectroscopy and spectrometers; Chemical variables measurement; Photography, photographic instruments and techniques; High-speed techniques (microsecond or shorter); Time-resolved measurements and techniques (atoms and molecules); Current measurement; Electromagnetic radiation spectrometry (chemical analysis); Ultrafast optical techniques; Velocity, acceleration and rotation measurement