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27 Dec 2010

Volume 97, Issue 26, Articles (26xxxx)

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Appl. Phys. Lett. 97, 263701 (2010); http://dx.doi.org/10.1063/1.3530124 (3 pages)

Shu-Hsien Liao, Kai-Wen Huang, Hong-Chang Yang, Chang-Te Yen, M. J. Chen, Hsin-Hsien Chen, Herng-Er Horng, and Shieh Yueh Yang
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The role of acceptance angle in measurements with ion energy analyzers: Study by numerical simulations

W. J. Miloch, N. Gulbrandsen, L. N. Mishra, and Å. Fredriksen

Appl. Phys. Lett. 97, 261501 (2010); http://dx.doi.org/10.1063/1.3531757 (3 pages) | Cited 1 time

Online Publication Date: 29 December 2010

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Show Abstract
The importance of an acceptance angle in the plasma diagnostics with ion energy analyzers is investigated by means of numerical simulations. It is shown that wide acceptance angles result in low energy tails in measured ion distribution functions (IDFx). For flowing plasmas or plasmas with beams, the orientation of the analyzer’s orifice gives different results due to bending of ion trajectories in the vicinity of the analyzer. It is demonstrated that the maximum in the IDFx is at energies lower than the plasma potential. Simulations are done with DIP3D, a three-dimensional particle-in-cell code.
Show PACS
52.25.Fi Transport properties
52.65.Rr Particle-in-cell method
52.70.-m Plasma diagnostic techniques and instrumentation
02.60.-x Numerical approximation and analysis
52.30.Cv Magnetohydrodynamics (including electron magnetohydrodynamics)
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