Title :
Investigation of the erosion drop fraction for liquid-metal explosive-emission cathodes
Author :
Popov, Sergey A. ; Proskurovsky, Dmitry I. ; Batrakov, Alexander V.
Author_Institution :
Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia
fDate :
8/1/1999 12:00:00 AM
Abstract :
The velocity spectrum of drops emitted by a liquid-metal explosive-emission cathode has been investigated. A relation between the sizes of the drops and their maximum velocities has been found for the velocity range 103-8×104 cm/s. The relation obtained supports the earlier established mechanism for the emission of drops under the action of high pressures developing in explosive emission centers. The possibilities of an additional acceleration of drops due to the explosion of necks formed on breaking the drops off the cathode surface and at the expense of the kinetic energy of the ions of the expanding cathode plasma have been discussed
Keywords :
cathodes; discharges (electric); drops; electron emission; explosions; liquid metals; wear; breaking; drop acceleration; drop emission; drop maximum velocities; drop size; erosion drop fraction; expanding cathode plasma; explosion; ion kinetic energy; liquid-metal explosive-emission cathodes; necks; velocity range; velocity spectrum; Acceleration; Cathodes; Electron emission; Explosions; Explosives; Helium; Kinetic energy; Neck; Plasma accelerators; Plasma properties;
Journal_Title :
Plasma Science, IEEE Transactions on
