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Title: Broad-beam multi-ampere metal ion source

Abstract

An embodiment of the MEVVA (metal vapor vacuum arc) high current metal ion source has been developed in which the beam is formed from a 10-cm diameter set of extractor grids and which produces a peak beam current of up to several Amperes. The source, MEVVA V, operates in a pulsed mode with a pulse width at present 0.25 ms and a repetition rate of up to several tens of pulses per second (power supply limited). The multicathode feature that was developed for the prior source version, MEVVA IV, has been incorporated here also; one can switch between any of 18 separate cathodes and thus metallic beam species. Maximum beam extraction voltage is over 90 kV, and since the ion charge state typically from Q = 1 to 5, depending on the metal employed, the ion energy in the extracted beam can thus be up to several hundred keV. This source is a new addition to the MEVVA family of metal ion sources, and we are at present investigating the operational regimes and the limits to the source performance. In this paper we describe the source and present some preliminary results. 10 refs., 4 figs.

Authors:
; ; ;  [1]
  1. Lawrence Berkeley Lab., CA (USA)
Publication Date:
Research Org.:
Lawrence Berkeley Lab., CA (USA)
Sponsoring Org.:
USDOD; DOE/ER
OSTI Identifier:
5415925
Report Number(s):
LBL-26842; CONF-890703-25
ON: DE90003106; TRN: 89-031364
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: International conference on ion sources, Berkeley, CA (USA), 10-14 Jul 1989
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ION SOURCES; DESIGN; BEAM CURRENTS; BEAM INJECTION; ION IMPLANTATION; CURRENTS; 430301* - Particle Accelerators- Ion Sources

Citation Formats

Brown, I G, Galvin, J E, MacGill, R A, Paoloni, F J, and Wollongong Univ. Broad-beam multi-ampere metal ion source. United States: N. p., 1989. Web.
Brown, I G, Galvin, J E, MacGill, R A, Paoloni, F J, & Wollongong Univ. Broad-beam multi-ampere metal ion source. United States.
Brown, I G, Galvin, J E, MacGill, R A, Paoloni, F J, and Wollongong Univ. 1989. "Broad-beam multi-ampere metal ion source". United States. https://www.osti.gov/servlets/purl/5415925.
@article{osti_5415925,
title = {Broad-beam multi-ampere metal ion source},
author = {Brown, I G and Galvin, J E and MacGill, R A and Paoloni, F J and Wollongong Univ.},
abstractNote = {An embodiment of the MEVVA (metal vapor vacuum arc) high current metal ion source has been developed in which the beam is formed from a 10-cm diameter set of extractor grids and which produces a peak beam current of up to several Amperes. The source, MEVVA V, operates in a pulsed mode with a pulse width at present 0.25 ms and a repetition rate of up to several tens of pulses per second (power supply limited). The multicathode feature that was developed for the prior source version, MEVVA IV, has been incorporated here also; one can switch between any of 18 separate cathodes and thus metallic beam species. Maximum beam extraction voltage is over 90 kV, and since the ion charge state typically from Q = 1 to 5, depending on the metal employed, the ion energy in the extracted beam can thus be up to several hundred keV. This source is a new addition to the MEVVA family of metal ion sources, and we are at present investigating the operational regimes and the limits to the source performance. In this paper we describe the source and present some preliminary results. 10 refs., 4 figs.},
doi = {},
url = {https://www.osti.gov/biblio/5415925}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {6}
}

Conference:
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