Title :
A simple high-repetitive-rate pulsed electron-beam source
Author :
Batrakov, A.V. ; Popov, S.A. ; Proskurovsky, D.I.
Author_Institution :
Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia
fDate :
June 29 1997-July 2 1997
Abstract :
The paper describes a simple pulsed electron beam source based on a sealed-off vacuum tube with a liquid-metal cathode and a foil anode, capable of operating with a pulse repetition rate of up to 1 kHz. An original approach to the starting of the voltage pulse generator embodied in this system makes it possible to produce stable beam current pulses of duration 20-30 ns and amplitude up to 500 A in the diode and up to 250 A for the beam extracted into the air with the operating voltage 80-90 kV. The range of operating voltages of the source is 60-120 kV. This source can also be used to produce X-radiation. A possible application of the source is presented: the excitation of a nonself-sustained atmospheric-pressure space discharge by an electron flow and X-radiation.
Keywords :
X-ray production; X-rays; anodes; cathodes; electron beams; ion sources; power supplies to apparatus; pulse generators; pulsed power technology; 1 kHz; 20 to 30 ns; 250 A; 500 A; 60 to 120 kV; 80 to 90 kV; X-radiation production; application; foil anode; liquid-metal cathode; operating voltages; pulse amplitude; pulse duration; pulse repetition rate; pulsed electron beam source; pulsed power supplies; sealed-off vacuum tube; space discharge excitation; stable beam current pulses; voltage pulse generator starting; Anodes; Cathodes; Diodes; Electron emission; Electron sources; Electron tubes; Pulse generation; Sparks; Surges; Threshold voltage;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.674586
