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http://dx.doi.org/10.4191/KCERS.2003.40.10.967

Characterization of Cold Hollow Cathode Ion Source by Modification of Electrode Structure  

Seok, Jin-Woo (R&D Center, P& I.D. Corporation)
Chernysh, V.S. (Faculty of Physics, Moscow State University)
Han, Sung (R&D Center, P& I.D. Corporation)
Beag, Young-Hwoan (R&D Center, P& I.D. Corporation)
Koh, Seok-Keun (R&D Center, P& I.D. Corporation)
Yoon, Ki-Hyun (Department of Ceramic Engineering, Yonsei University)
Publication Information
Abstract
The inner-diameter 5 cm cold hollow cathode ion source was designed for the high current density and the homogeneous beam profile of ion beam. The ion source consisted of a cylindrical cathode, a generation part of magnetic field, a plasma chamber, convex type ion optic system with two grid electrode, and DC power supply system. The cold hollow cathode ion sources were classified into standard type (I), electron output electrode modified type (II). The operation of the ion source was done with discharge current, ion beam potential and argon gas flow rate. The modification of electron output electrode resulted in uniform plasma generation and uniform area of ion beam was extended from 5 cm to 20 cm. Improved ion source was evaluated with beam uniformity, ion current, team extraction efficiency, and ionization efficiency.
Keywords
Cold cathode; Ion source; Ion beam; Plasma; Beam profile;
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