scholarly journals Ion beam emittance from an ECRIS

2016 ◽  
Vol 87 (2) ◽  
pp. 02A724 ◽  
Author(s):  
P. Spädtke ◽  
R. Lang ◽  
J. Mäder ◽  
F. Maimone ◽  
B. R. Schlei ◽  
...  
Keyword(s):  
Ion Beam ◽  
1995 ◽  
Vol 13 (2) ◽  
pp. 221-229 ◽  
Author(s):  
A. Tauschwitz ◽  
E. Boggasch ◽  
D.H.H. Hoffmann ◽  
J. Jacoby ◽  
U. Neuner ◽  
...  

Focusing of heavy-ion beams is an important issue for ion beam-driven inertial confinement fusion. For the experimental program to investigate matter at high energy densities at GSI, the application of a plasma lens has attractive features compared to standard quadrupole lenses. A plasma lens using a wall-stabilized discharge has been systematically investigated and optimized for this purpose. Different lenses were tested in several runs at the GSI linear accelerator UNILAC and at the SIS-synchrotron. A remarkably high accuracy and reproducibility of the focusing were found. The focal spot size was mainly limited by the beam emittance. A summary of experimental results and important limitations of the focal spot size is given.


2004 ◽  
Vol 75 (5) ◽  
pp. 1681-1683 ◽  
Author(s):  
Yoon Jae Kim ◽  
I. S. Hong ◽  
H. S. Kim ◽  
Y. S. Hwang

2018 ◽  
Vol 36 (4) ◽  
pp. 477-486 ◽  
Author(s):  
M. Khoshhal ◽  
M. Habibi ◽  
Rod W. Boswell

AbstractThree triode extraction systems are simulated by IBSimu ion optical code for Amirkabir Helicon Ion Source (AHIS). The optimized pierce and suggested parabolic electrodes are introduced for the first time in this paper. The obtained N+ beam for parabolic geometry designed for ion implantation has 66 keV energy, and 10.4 mA current. Ion beam emittance and Twiss parameters of the emittance ellipse as the function of x term index are calculated for parabolic electrode equation. The simulated triode extraction systems have been evaluated by using of optimized parameters such as the extraction voltage, gap distance, plasma electrode (PE) aperture, and ion temperature. The extraction voltage, gap distance, PE aperture, and ion temperature have been changed in the range of 58–70 kV, 35–39 mm, 4–6 mm, and 0.5–4.4 eV in the simulations, respectively.


2014 ◽  
Vol 113 (26) ◽  
Author(s):  
L. Groening ◽  
M. Maier ◽  
C. Xiao ◽  
L. Dahl ◽  
P. Gerhard ◽  
...  

2014 ◽  
Vol 29 (4) ◽  
pp. 326-330
Author(s):  
Basanta Das ◽  
Anurag Shyam ◽  
Rashmita Das ◽  
Durga Rao

The study of an ion beam transport mechanism contributes to the production of a good quality ion beam with a higher current and better beam emittance. The simulation of an ion beam provides the basis for optimizing the extraction system and the acceleration gap for the ion source. In order to extract an ion beam from an ion source, a carefully designed electrode system for the required beam energy must be used. In our case, a self-extracted penning ion source is used for ion generation, extraction and acceleration with a single accelerating gap for the production of neutrons. The characteristics of the ion beam extracted from this ion source were investigated using computer code SIMION 8.0. The ion trajectories from different locations of the plasma region were investigated. The simulation process provided a good platform for a study on optimizing the extraction and focusing system of the ion beam transported to the required target position without any losses and provided an estimation of beam emittance.


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