The Astra repetitive-pulse electron accelerator

• Published in: Instruments and experimental techniques (New York) Vol. 56; no. 5; pp. 568 - 570
• Main Authors: Egorov, I. S., Kaikanov, M. I., Lukonin, E. I., Remnev, G. E., Stepanov, A. V.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-09-2013
• Subjects: Electrical Engineering; General Experimental Techniques; Measurement Science and Instrumentation; Physical Chemistry; Physics; Physics and Astronomy; Pulse Transformer; Capacitive Storage; Generate Electron Beam; Capacitive Voltage Divider; Beam Current Pulse
• ISSN: 0020-4412; 1608-3180
• DOI: 10.1134/S0020441213050035

The description and results of tests of the Astra pulsed electron accelerator are presented. A high-voltage pulse transformer with a pseudospark gap that serves as a switch of a capacitive storage is directly loaded into a vacuum planar diode, which is based on a metal-ceramic cathode with a long delay time of the electron explosive emission. The generated electron beam is injected into the atmosphere at a frequency of 50 Hz. The full width at half maximum (FWHM) duration of the injected beam current is 60 ns for an accelerating voltage of 370 ± 10 kV. The electron-beam energy is 19 J, when the accelerator operates into an internal target, and 4.5 J, when the electron beam is injected into the atmosphere and the low-energy fraction of beam electrons is cut off by a separating foil.