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METAL-VAPOR VACUUM-ARC ION SOURCE WITH AN ADDITIONAL ANODE *

V. I. Pershin, V.A. Batalin, A. A. Kolomiets, R. P. Kuibeda, T. V. Kulevoy, S. V. Petrenko, D. N. Seleznev, Russia A. Hershcovitch, B. M. Johnson, Е. М. Oks

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Abstract

For several years the investigations of MEVVA ion source and its modifications have been carried out in ITEP Moscow. From the highest charge state ions generation point of view, the e-MEVVA ion source (MEVVA with external electron beam and plasma source drift channel) is the most promising modification of MEVVA ion source. During experiments with e-MEVVA ion source it was found that this ion source can generate the ion beam with higher charge states than the common one when the external e-beam is off. To provide this effect, the two anode step-by-step high current discharge and axial high gradient magnetic field were used. The results of CSD (charge state distribution) measurement of uranium and lead beams generated by this ion source (MEVVA-M) with different discharge currents and different magnetic field distribution are presented.

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What this paper is about

For several years the investigations of MEVVA ion source and its modifications have been carried out in ITEP Moscow. From the highest charge state ions generation point of view, the e-MEVVA ion source (MEVVA with external electron beam and plasma source drift channel) is the most promising modification of MEVVA ion source. During experiments with e-MEVVA ion source it was found that this ion source can generate the ion beam with higher charge states than the common one when the external e-beam is off. To provide this effect, the two anode step-by-step high current discharge and axial high gradient magnetic field were used. The results of CSD (charge state distribution) measurement of uranium and lead beams generated by this ion source (MEVVA-M) with different discharge currents and different magnetic field distribution are presented.

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Available abstract

For several years the investigations of MEVVA ion source and its modifications have been carried out in ITEP Moscow. From the highest charge state ions generation point of view, the e-MEVVA ion source (MEVVA with external electron beam and plasma source drift channel) is the most promising modification of MEVVA ion source. During experiments with e-MEVVA ion source it was found that this ion source can generate the ion beam with higher charge states than the common one when the external e-beam is off. To provide this effect, the two anode step-by-step high current discharge and axial high gradient magnetic field were used. The results of CSD (charge state distribution) measurement of uranium and lead beams generated by this ion source (MEVVA-M) with different discharge currents and different magnetic field distribution are presented.

Key concepts: Vacuum arc, Ion source, Ion gun, Atomic physics, Ion beam deposition, Ion beam, Ion, Anode

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