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Observation of weakly and strongly diverging ion beams in a magnetically expanding plasma
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10.1063/1.3080205
/content/aip/journal/apl/94/6/10.1063/1.3080205
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/6/10.1063/1.3080205
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of experimental setup. (b) Axial profiles of the plasma potential for 0.35 mTorr (open squares) and 1 mTorr (closed squares).

Image of FIG. 2.
FIG. 2.

(a) Normalized IEDFs for 0.35 mTorr (dashed line) and 1 mTorr (solid line). (b) Axial profile of the beam current flowing into the collector electrode for 0.35 mTorr (open squares) and 1 mTorr (closed squares), respectively.

Image of FIG. 3.
FIG. 3.

profiles of the beam current flowing into the collector electrode at (closed squares), 5 cm (open squares), 7 cm (open triangles), and 9 cm (open circles) for (a) 0.35 mTorr and (b) 1 mTorr.

Image of FIG. 4.
FIG. 4.

profiles of the plasma potential and the radial electric field measured at (a) , (b) 5 cm, and (c) 8 cm for 0.35 mTorr (open squares) and 1 mTorr (closed squares), respectively.

Image of FIG. 5.
FIG. 5.

Radial positions (open squares) of the peaks in the beam current profiles for 1 mTorr [arrows in Fig. 3(b) ] depending on the axial distance from the end of the DL, together with the estimated radial position of the ion particle from the first term (dashed line) and the sum of the first and second terms (solid line) in Eq. (1) , respectively.

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/content/aip/journal/apl/94/6/10.1063/1.3080205
2009-02-09
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Observation of weakly and strongly diverging ion beams in a magnetically expanding plasma
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/6/10.1063/1.3080205
10.1063/1.3080205
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