Vacuum arc ion charge-state distributions

Journal Article · Tue Oct 01 04:00:00 EDT 1991 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/27.108403· OSTI ID:6972951

Brown, I G; Godechot, X ^[1]

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1. Lawrence Berkeley Lab., CA (United States). Accelerator and Fusion Research Div.

The authors have measured vacuum arc ion charge-state spectra for a wide range of metallic cathode materials. The charge-state distributions were measured using a time-of-flight diagnostic to monitor the energetic ion beam produced by a metal vapor vacuum arc ion source. They have obtained data for 48 metallic cathode elements: Li, C, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, Sr, Y, Zr, Nb, Mo, Pd, Ag, Cd, In, Sn, Ba, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Er, Yb, Hf, Ta, W, Ir, Pt, Au, Pb, Bi, Th, and U. The arc was operated in a pulsed mode with pulse length 0.25 ms; arc current was 100 A throughout. This array of elements extends and completes previous work by the authors. In this paper the measured distributions are cataloged and compared with their earlier results and those of other workers. They also make some observations about the performance of the various elements as suitable vacuum arc cathode materials.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6972951
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 19:5; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

661220* -- Particle Beam Production & Handling
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
CATHODES
CHARGE STATES
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
DATA
DIAGNOSTIC TECHNIQUES
ELECTRODES
EVALUATION
EXPERIMENTAL DATA
INFORMATION
ION BEAMS
ION SOURCES
IONS
MATERIALS
MULTICHARGED IONS
NUMERICAL DATA
PLASMA PRODUCTION
TIME-OF-FLIGHT METHOD
Ta
Targets-- (1992-)