Design studies for a H− ion extraction system

2004 ◽  
Vol 75 (5) ◽  
pp. 1783-1785 ◽  
Author(s):  
A. Ushakov ◽  
K. Volk ◽  
H. Klein ◽  
U. Ratzinger
Keyword(s):  
Extraction System ◽  
Design Studies ◽  
Ion Extraction

Procedure of Predicting the Lifetime of the Accelerating Electrode of an Ion-Extraction System of a Gas-Discharge Ion Source

2019 ◽  
Vol 13 (6) ◽  
pp. 1217-1224 ◽  
Author(s):  
R. V. Akhmetzhanov ◽  
Ye. V. Vorob’ev ◽  
D. V. Dukhopel’nikov ◽  
S. G. Ivakhnenko ◽  
V. A. Obukhov ◽  
...  
Keyword(s):  
Gas Discharge ◽  
Ion Source ◽  
Extraction System ◽  
Ion Extraction

A New Design and Computer Simulation of a 5-Electrode Ion Extraction/Focusing System

2005 ◽  
Vol 107 ◽  
pp. 21-24 ◽  
Author(s):  
M. Medhisuwakul ◽  
Thiraphat Vilaithong ◽  
Jürgen Engemann
Keyword(s):  
Microwave Plasma ◽  
Ion Beam ◽  
Plasma Source ◽  
Ion Source ◽  
Simulation Software ◽  
Ion Current ◽  
Extraction System ◽  
Beam Shape ◽  
Ion Extraction ◽  
Argon Ion

A 13.56 MHz radio-frequency (rf) driven multicusp ion source has been constructed [1] to produce a high argon ion current density. Milliampere-range argon ion current can be extracted from the source. An in-waveguide microwave plasma source has been utilized as the ion beam neutralizer [2]. The neutralization source was placed 20 cm downstream from the extraction system. With the former extraction system, comprised of extraction electrodes and an Einzel lens, the electrons from the neutralizer were attracted to the high positive potential of the lens. Consequently, the potential of the lens drops and the beam is diverged. To suppress electrons from being accelerated to the Einzel lens a negatively biased electrode was placed before the last electrode, which is grounded, to produce a retarding electric field for electrons. The hole of the electrode was made small to make sure that the potential at the center is negative enough to suppress electrons. All simulations have been performed with the KOBRA3-INP simulation software. The results of the beam shape from the simulation will be presented.

Two-Electrode Ion-Extraction System of a Radio-Frequency Ion Source: Numerical and Experimental Studies of Erosion of the Accelerating Electrode

2019 ◽  
Vol 13 (6) ◽  
pp. 1061-1066 ◽  
Author(s):  
R. V. Akhmetzhanov ◽  
A. V. Bogatyi ◽  
E. V. Vorob’ev ◽  
D. V. Dukhopel’nikov ◽  
D. A. Kashirin ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Experimental Studies ◽  
Ion Source ◽  
Extraction System ◽  
Ion Extraction
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