Measurement of Plasma-Neutralized Super-Vacuum Currents in a Gyrotron Configuration

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Abstract:

Experimental results are reported on the transport of an electron beam with current in excess of the vacuum space-charge limited value, in a configuration directly applicable to gyrotron oscillators. The vacuum space- charge limit is circumvented by the introduction of a neutralizing background plasma which is produced by an array of four plasma guns placed immediately downstream of the electron gun anode. Keywords Super vacuum currents Plasma neutralization Gyrotron.

Author(s):
Kirkpatrick, D. A. ; Gold, S. H. ; Manheimer, W. M. ; Black, W. M. ; Kinkead, A. K.
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC
Descriptive Note:
Memorandum rept. Feb 1988-Sep 1989
Supplementary Note:
Prepared in cooperation with Science Applications International Corp., McLean, VA and JAYCOR, Inc., Vienna, VA.
Pagination:
0020

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NRL-MR-6595
Task Number(s):
RR01109
Project Number(s):
RR011
 Subject Terms
Joint Capability Areas:
JCA_1.2.3_Educating; JCA_5_Command and Control; JCA_4.6_Engineering
Modernization Areas:
Directed Energy
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*GYROTRONS, *SPACE CHARGE, VACUUM, ELECTRON BEAMS, ANODES, GUNS, ELECTRON GUNS, NEUTRALIZATION, PLASMAS(PHYSICS), LIMITATIONS
Field(s)/Group(s):
Electrical and Electronic Equipment, Electricity and Magnetism, Plasma Physics and Magnetohydrodynamics
Keyword(s):
GYROTRON OSCILLATORS
Report Date:
1990 Feb 16