Published December 19, 2005 | Version v1
Report Restricted

Rf Gun with High-Current Density Field Emission Cathode

Creators

Description

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

Availability note (English)

Available from INIS in electronic form; Also available from OSTI as DE00861455; PURL: https://www.osti.gov/servlets/purl/861455-N446Ws/

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/861455-N446Ws/;

Publishing Information

Imprint Pagination
25 p.
Report number
DOE/ER--86193

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
38064978
Subject category
S43: PARTICLE ACCELERATORS;
Descriptors DEI
CARBON; CATHODES; CERAMICS; CONFIGURATION; CURRENT DENSITY; DESIGN; ELECTRODYNAMICS; ELECTRONS; FIELD EMISSION; MODULATION; NANOTUBES; PERFORMANCE; SPACE CHARGE; TESTING
Descriptors DEC
ELECTRODES; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; FERMIONS; LEPTONS; NANOSTRUCTURES; NONMETALS

Optional Information

Contract/Grant/Project number
FG02-04ER86193
Funding organization
USDOE - Office of Science (Seychelles) (US)