Abstract
Recently there was discovered an in- Results : 'Pwo types of the instabilities stability of high pressure dischargesh-&ut were discovered. The first one arises at the mechanism of such instability has not at I?> 3 atm in carefully purified gases been studied. This report is devoted to with diminishing of gas rotation speed. the experimental investigation of the in- This instability arose in arc and electrode stability in direct current arcs and in HF ID? discharge in %he form of disordered discharges [4] in H2, D2 and rare gases at breakdowns near the main discharge column pressures up to P=30 atm. bended by Arhimed forces (Fig.2a). Ion ~~th~d~ : ~i~.l shows the experimental lines appeared in rare gases simultaneously arrangement. Discharge emission was re- with breakdown. After the breakdown %he vigistered by means of stereoscopical sys- sible emission vanished for somers, but in tem composed of two dissectora and two VW one can observe the molecular spectrum fast ( - 0.1 ,q s) two-dimensional coordi- of rare gases during some tens of ?so nate counters, visualizing VW and soft X-ray radiation of plasma in narrow bands 0 from 100 to 2000 A with the space resolu
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