Results 261 to 270 of about 33,174 (298)
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Electron Gun Based Magnetic Probe
2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2020Accurate magnetic field measurements are fundamental to the construction, testing, and certification of magnetic systems. Often, in high accuracy systems, the measurement technique and its implementation may involve a considerable effort. One such example of this type of system is undulators for light sources.
Srinidhi Bheesette, Marcos Turqueti
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The study of the electron-electron interaction in electron gun
Microelectronic Engineering, 1986Abstract The paper summarizes the up-to-date study of the electron -electron interaction of beam electrons in columns. The electron-electron interaction of beam electrons results in two effects to influence the electron optical properties of columns: the trejectroy displacement and the the energy spread which is called as Boersch effect.
Wu yajun, Wei maoxin
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Predispersive electron gun for an electron monochromator
Journal of Physics E: Scientific Instruments, 1986Improved transmission of a hemispherical monochromator is demonstrated by using an electron gun which incorporates a mirror lens to predisperse the incident electron beam. The apparatus described can be used to study surface or gas-phase collision processes.
N J Mason, W R Newell
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2009
This chapter contains sections titled: Introduction Technology Overview Cathode Technologies Novel Electron Guns Summary and Future Directions This chapter contains sections titled: References ]]>
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This chapter contains sections titled: Introduction Technology Overview Cathode Technologies Novel Electron Guns Summary and Future Directions This chapter contains sections titled: References ]]>
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Physica Scripta, 1997
This paper reviews cathodes for high current density electron beams. It describes the following types of emitters: oxide, dispenser, LaB6, IrCe. Photo and ferroelectric cathodes are presented briefly. Current density from the cathodes, their lifetimes, some features due to the cathode surface properties and influence on the beam of filament magnetic ...
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This paper reviews cathodes for high current density electron beams. It describes the following types of emitters: oxide, dispenser, LaB6, IrCe. Photo and ferroelectric cathodes are presented briefly. Current density from the cathodes, their lifetimes, some features due to the cathode surface properties and influence on the beam of filament magnetic ...
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A Non-Adiabatic Electron Gun For Gyrotrons
SPIE Proceedings, 1988The hollow electron beams in gyrotrons are normally generated in magnetron injection type (MIG) guns1. In these guns the transverse velocity of the electrons is mainly determined by the ExB-drift at the emitter. Non-adiabatic effects during the acceleration do not give a major contribution.
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2012
The calculation procedure developed for electron mirrors is employed for determining the optical properties of field emission guns and cathode lenses. This approach avoids the separation of the system in an accelerating regime and a focusing region used in standard methods. The advantage of the new method is shown by deriving an analytic expression for
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The calculation procedure developed for electron mirrors is employed for determining the optical properties of field emission guns and cathode lenses. This approach avoids the separation of the system in an accelerating regime and a focusing region used in standard methods. The advantage of the new method is shown by deriving an analytic expression for
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Development of an electron gun based on CNT-cathode for traveling wave tube application
Vacuum, 2021Ji Xu, Qilong Wang
exaly