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Title: Current waveform reconstruction from an explosively emissive cathode at a subnanosecond voltage front

We describe the methods of registration and reconstruction of an envelope of explosive electron emission current from the edge of a cylindrical cathode, which provides a picosecond time reference of the emitted electron beam with a subnanosecond voltage front applied to the accelerating gap. Variation of the front steepness allows one to determine the beam onset time in the experiments, where a collector-type current probe can be used. The advanced method of dynamic time domain reflectometry provides exact data on electron beam current rise and track changes in the cathode emission from pulse to pulse with a precision of less than 10 ps.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ;  [4]
  1. Institute of Electrophysics UB RAS, 106 Amundsen Str., 620016 Ekaterinburg (Russian Federation)
  2. P. N. Lebedev Physical Institute, RAS, 53, Lenin Avenue, 119991 Moscow (Russian Federation)
  3. Institute of High Current Electronics SB RAS, 2/3 Akademichesky Avenue, 634055 Tomsk (Russian Federation)
  4. Ural Federal University, 19, Mira Str., 620002 Ekaterinburg (Russian Federation)
Publication Date:
OSTI Identifier:
22392293
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; BEAM CURRENTS; CATHODES; CYLINDRICAL CONFIGURATION; ELECTRIC POTENTIAL; ELECTRON BEAMS; ELECTRON EMISSION; WAVE FORMS