RF discharge-based plasma emitter View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2002-03

AUTHORS

A. A. Ivanov, I. V. Shikhovtsev, A. A. Podyminogin, I. I. Averboukh, T. D. Akhmetov, V. I. Davydenko, P. P. Deichuli

ABSTRACT

An injector of hydrogen atoms for plasma diagnostics in modern tokamaks has been developed at the Budker Institute of Nuclear Physics (Novosibirsk). The ion source of the injector produces a proton (helium ion) beam with a current of up to 2 A (1 A), an ion energy of up to 55 keV, a beam divergence of ∼0.6\deg, and a pulse duration of up to 10 s. An RF discharge-based plasma emitter, which is one of the main parts of the ion source, is described. The emitter diameter is 72 mm, the ion current density is 120 mA/cm2, and the inhomogeneity of the current density is ±6%. The beam is formed by a four-electrode ionoptical system with 163 round apertures. At a current of 2 A, the ion beam consists of 67% protons, 18% H2+ ions, and 15% H3+ ions, the total content of heavier ions in the beam being no higher than 2–3%. More... »

PAGES

196-203

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/1.1458986

DOI

http://dx.doi.org/10.1134/1.1458986

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1007678426


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