Features of electrical discharges in air triggered by laser

March, V.; Arrayás, Manuel; Trueba, José L.; Montanyà, Joan; Romero, David A.; Solà, G.; Aranguren, Daniel

doi:10.1016/j.elstat.2009.01.039

Cited by 25 publications

(8 citation statements)

References 18 publications

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“…Only when the beam intensity is higher than 10 18 W/m 2 , tunneling ionisation occurs [7]. Therefore only the MPI and inverse Bremsstrahlung are discussed in this paper.…”

Section: Effect Of Tsuvr On Air Moleculesmentioning

confidence: 99%

“…There are three other interactions between UV photons with air molecules: multiphoton ionisation (MPI) and inverse Bremsstrahlung and tunneling ionisation [7]. Only when the beam intensity is higher than 10 18 W/m 2 , tunneling ionisation occurs [7]. Therefore only the MPI and inverse Bremsstrahlung are discussed in this paper.…”

Section: Effect Of Tsuvr On Air Moleculesmentioning

confidence: 99%

“…Since 1960, in order to induce lightning artificially, many researchers have paid attention to electrical discharges in air triggered by laser [7][8][9][10][11][12][13][14]. Studies have shown that laser can ionise gas when its intensity is higher than a threshold value depending on the laser system, gas and pressure.…”

Section: Introductionmentioning

confidence: 99%

“…Research shows that laser will decrease breakdown voltage of air gap and increase streamer velocity. It was proposed that the breakdown voltage with laser-trigger can be reduced by about 10% [7].…”

Section: Introductionmentioning

confidence: 99%

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Study on the effect of artificial radiation simulating terrestrial solar ultraviolet radiation on negative DC discharge performance of air gap

Shu

Yang

Jiang

et al. 2014

IET Generation, Transmission & Distribution

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It is important to reveal the effect of terrestrial solar ultraviolet radiation (TSUVR) on discharge performance of external insulation for the design and operation of a power system in regions with strong TSUVR, especially in Tibet. However, no research was carried out in this field until now. In this study, an artificial UV lamp was used to imitate TSUVR in the relevant experiments to research on the effect of negative DC discharge. It was found that artificial radiation simulating terrestrial solar UV radiation (STSUVR) does not affect appreciably the negative DC corona characteristics and breakdown voltage of short rod-plane air gaps of several electrode materials. That is because the wavelength of the STSUVR is in the range of 290-400 nm, and its intensity is less than 200 W/m 2 . Thus, air, Cu and Fe cannot be photoionised by STSUVR. There is also no effect of the STSUVR on arc propagation because of energy. Although a part of the photons in the TSUVR has higher energy than the work function of Al, it is very easy for the Al to be oxidised, and the oxide film (Al 2 O 3 ) can prevent Al from being ionised by TSUVR. Therefore the TSUVR does not have an obvious effect on negative DC discharge performance of air gap.

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“…Only when the beam intensity is higher than 10 18 W/m 2 , tunneling ionisation occurs [7]. Therefore only the MPI and inverse Bremsstrahlung are discussed in this paper.…”

Section: Effect Of Tsuvr On Air Moleculesmentioning

confidence: 99%

Section: Effect Of Tsuvr On Air Moleculesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study on the effect of artificial radiation simulating terrestrial solar ultraviolet radiation on negative DC discharge performance of air gap

Shu

Yang

Jiang

et al. 2014

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

show abstract

“…In this case, the radiation has been detected in different situations like those associated with leader steps of rocket‐triggered lightning [ Dwyer et al , ], in multiple occasions associated with downward negative stepped leaders [ Dwyer , ; Howard et al , ; Saleh et al , ; Schaal et al , ; Mallick et al , ; Montanyà et al , ], and only in one case associated with upward leaders of both polarities [ Yoshida et al , ]. It is thought that those X‐rays are produced by Bremsstrahlung effect of runaway electrons produced by cold runaway which is the same candidate process to explain X‐rays in laboratory sparks [ Dwyer , ; Dwyer et al , ; Nguyen et al , ; March et al , ; March and Montanyà , ; Shao et al , ; Kochkin et al , ]. These very short‐lasting events observed on ground detectors should be produced by negative IC lightning by the same mechanism as TGFs.…”

Section: Introductionmentioning

confidence: 99%