Field emission dark current of technical metallic electrodes
نویسندگان
چکیده
منابع مشابه
Field Emission Dark Current of Technical Metallic Electrodes
In the framework of the Low Emittance Gun (LEG) project, high gradient acceleration of a low emittance electron beam will be necessary. In order to achieve this acceleration a-500 kV, 250 ns FWHM, pulse will be applied in between two electrodes. Those electrodes should sustain the pulsed field without arcing, must not outgass and must not emit electrons. Ion back bombardment, and dark current w...
متن کاملJa n 20 07 SLS - TME - TA - 2006 - 293 1 Field Emission Dark Current of Technical Metallic Electrodes
In the framework of the Low Emittance Gun (LEG) project, high gradient acceleration of a low emittance electron beam will be necessary. In order to achieve this acceleration, a-500 kV, 250 ns FWHM, pulse will be applied between two electrodes. Those electrodes should sustain the pulsed field without arcing, must not outgas and must not emit electrons. Ion back bombardment, and dark current will...
متن کاملDescription beyond the mean-field approximation of an electrolyte confined between two planar metallic electrodes.
We study an electrolyte confined in a slab of width W composed of two grounded metallic parallel electrodes. We develop a description of this system in a low coupling regime beyond the mean-field (Poisson-Boltzmann) approximation. There are two ways to model the metallic boundaries: as ideal conductors in which the electric potential is zero, and it does not fluctuate, or as good conductors in ...
متن کاملField emission and current-voltage properties of boron nitride nanotubes
We have measured electrical transport properties of boron nitride nanotubes using an in situ manipulation stage inside a transmission electron microscope. Stable currents were measured in a field emission geometry, but in contact the nanotubes are insulating at low bias. At high bias, the nanotubes show stable, reversible breakdown current. q 2003 Published by Elsevier Ltd.
متن کاملPlasma Dark Current in Self-ionized Plasma Wake Field
Evidence of particle trapping has been observed in a beam driven Plasma Wake Field Accelerator (PWFA) experiment, E164X, conducted at the Stanford Linear Accelerator Center by a collaboration which includes USC, UCLA and SLAC. Such trapping produces plasma dark current when the wakefield amplitude is above a threshold value and may place a limit on the maximum acceleration gradient in a PWFA. T...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2007
ISSN: 0168-9002
DOI: 10.1016/j.nima.2007.01.087