On possibility of high frequency electron beam scanning with application of focusing system for X-ray generation

摘要

The article describes the electron beam scanning system in combination with electromagnetic focusing system.udThese systems find their application in different vacuum tube devices that provide the generation of X-ray radiation.udSimilar systems can be utilized in such fields as medicine, industry and defectoscopy. Electron tube system can beudbased on thermal or field emission cathodes. Scanning system is built up on two pair of electrical deflecting dipoles.udThe scanning can also be based on magnetic deflecting system. Beam focusing is achieved by the geometrical featuresudof electrodes structure and electron lenses. Magnetic focusing can also be used for transversal focusing of theudbeam. The article describes the schemes of the unit with electron beam scanning and different methods of realization.udBeam dynamics investigation in electromagnetic fields of the unit is considered.