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Noise suppression and stabilization of an ion beam extracted from dense plasma
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10.1063/1.2776000
/content/aip/journal/jap/102/5/10.1063/1.2776000
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/5/10.1063/1.2776000
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A two-electrode extraction system: (а) ion beam extraction from low-density plasma, and (b) ion beam extraction from dense plasma, .

Image of FIG. 2.
FIG. 2.

The extracted ion beam current dependence on plasma density. Extraction voltage , puller length , the distance between electrodes , diameter of the aperture in the plasma electrode , and electron temperature . Results are obtained using the WARP code.

Image of FIG. 3.
FIG. 3.

The extracted ion beam current dependence on plasma density obtained for different values of extraction voltage and puller length. (a) Black squares correspond to and white triangles correspond to ; . (b) Black squares correspond to and white circles correspond to ; . Results are obtained using the WARP code for , , and .

Image of FIG. 4.
FIG. 4.

The transverse beam emittance, , measured at the puller entrance (circles) and exit (black squares) vs plasma density. , , , , and . Results are obtained using the WARP code.

Image of FIG. 5.
FIG. 5.

The dependence of beam current at the output of the extraction system, , on the total current density extracted from plasma. Extraction voltage , puller length , the distance between electrodes , diameter of the aperture in the plasma electrode , and electron temperature . Results are obtained on the SMIS 37 stand.

Image of FIG. 6.
FIG. 6.

Oscillograms of the beam current to the Faraday cylinder (upper trace) and to the puller (lower trace). (а) Extraction from dense plasma with , . (b) Plasma density value lies between the optimal and “plateau” values, , . Small arrows denote zero values of corresponding currents. Results are obtained on the SMIS 37 stand.

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/content/aip/journal/jap/102/5/10.1063/1.2776000
2007-09-06
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Noise suppression and stabilization of an ion beam extracted from dense plasma
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/5/10.1063/1.2776000
10.1063/1.2776000
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