Abstract
Abstract The phenomenon of high-intensity pulsed electron emission from ferroelectrics, discovered at CERN in 1988, has attracted much interest and is today a subject of investigation all over the word. Applications of this new kind of electron source are manifold, since the emission effect does not rely on the quality of the vacuum, the electrons may have an initial kinetic energy up to several keV, the pulse duration can be varied, and the cross-section of the source may be determined from the electrode geometry. Thus, research and development on the Ferroelectric Electron Beam Source (FEBS) is wide-ranging and comprises pulse generation of femtosecond to microsecond duration, high current cathodes, large area emitters, micro sources, and electron emission from ferroelectric thin films. The phenomenon is initiated by suddenly unbalancing the charge equilibrium of the ferroelectric, and the emission of the pulsed electron beam is part of the relaxation process. A convenient method of achieving the initia...
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