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Title: Rf Gun with High-Current Density Field Emission Cathode

Abstract

High current-density field emission from an array of carbon nanotubes, with field-emission-transistor control, and with secondary electron channel multiplication in a ceramic facing structure, have been combined in a cold cathode for rf guns and diode guns. Electrodynamic and space-charge flow simulations were conducted to specify the cathode configuration and range of emission current density from the field emission cold cathode. Design of this cathode has been made for installation and testing in an existing S-band 2-1/2 cell rf gun. With emission control and modulation, and with current density in the range of 0.1-1 kA/cm2, this cathode could provide performance and long-life not enjoyed by other currently-available cathodes

Authors:
Publication Date:
Research Org.:
Omega-P, Inc.
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
861455
Report Number(s):
DOE/ER 86193-p47
TRN: US0702250
DOE Contract Number:  
FG02-04ER86193
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CARBON; CATHODES; CERAMICS; CONFIGURATION; CURRENT DENSITY; DESIGN; ELECTRODYNAMICS; ELECTRONS; FIELD EMISSION; MODULATION; NANOTUBES; PERFORMANCE; SPACE CHARGE; TESTING; carbon nanotube cold cathode, field emission cathode, RF gun

Citation Formats

Jay L. Hirshfield. Rf Gun with High-Current Density Field Emission Cathode. United States: N. p., 2005. Web. doi:10.2172/861455.
Jay L. Hirshfield. Rf Gun with High-Current Density Field Emission Cathode. United States. doi:10.2172/861455.
Jay L. Hirshfield. Mon . "Rf Gun with High-Current Density Field Emission Cathode". United States. doi:10.2172/861455. https://www.osti.gov/servlets/purl/861455.
@article{osti_861455,
title = {Rf Gun with High-Current Density Field Emission Cathode},
author = {Jay L. Hirshfield},
abstractNote = {High current-density field emission from an array of carbon nanotubes, with field-emission-transistor control, and with secondary electron channel multiplication in a ceramic facing structure, have been combined in a cold cathode for rf guns and diode guns. Electrodynamic and space-charge flow simulations were conducted to specify the cathode configuration and range of emission current density from the field emission cold cathode. Design of this cathode has been made for installation and testing in an existing S-band 2-1/2 cell rf gun. With emission control and modulation, and with current density in the range of 0.1-1 kA/cm2, this cathode could provide performance and long-life not enjoyed by other currently-available cathodes},
doi = {10.2172/861455},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {12}
}