Open AccessSome features of discharge initiation in vacuum gap by optical range radiation
Publication year - 2021
Publication title -
prikladnaâ fizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.205
H-Index - 7
ISSN - 1996-0948
DOI - 10.51368/1996-0948-2021-2-30-36
Subject(s) - laser , overheating (electricity) , plasma , ionization , atomic physics , instability , radiation , materials science , range (aeronautics) , electric arc , optics , chemistry , physics , ion , electrode , mechanics , nuclear physics , organic chemistry , quantum mechanics , composite material
The hypothesis of discharge initiation in vacuum gap by optical range radiation based on pre-viously obtained experimental data. During the laser pulse interaction withelectrode erosionproductsthe glow discharge has ignited. In result of ionization-overheating instability the dis-charge has had current channel contraction and has transferred to arc. Thedependences ofmaterial of target thermo dynamical parameters on theminimal and thresholdlaser pulse en-ergyhave demonstrated. The threshold laser pulse energy –the energy which enough to effec-tive impact on the laser plasma.