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Characteristics of discharge induced by laser‐generated plasmas in atmospheric air
Author(s) -
Honda Chikahisa,
Muraoka Katsunori,
Takuma Tadasu,
Akazaki Masanori,
Kinoshita Fumihiro,
Katahira Osamu
Publication year - 1994
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391140704
Subject(s) - lightning (connector) , plasma , plasma channel , laser , electrode , materials science , voltage , mechanics , optics , atomic physics , electrical engineering , chemistry , physics , power (physics) , engineering , quantum mechanics
The possibility of laser‐induced lightning has been investigated for the future application in the protection of electric power systems from lightning strokes. This technique induces lightning strokes artificially along a laser‐produced breakdown plasma channel and conducts them to a harmless place on the ground. To clarify the plasma formation mechanism and the discharge (sparkover) induction process, sparkover induction experiments are performed for two types of long‐gap electrode configurations, plate‐to‐rod and plate‐to‐plate, with a 50‐J TEA CO 2 laser. In the present paper, the sparkover voltage characteristics and interferometric measurement on laser‐produced plasma mainly are described, together with sparkover induction for a series of metal beads arranged equidistantly which simulate a plasma channel.