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Production of highly charged heavy ions by 18 GHz superconducting electron cyclotron resonance at Research Center for Nuclear Physicsa)
a)Contributed paper, published as part of the Proceedings of the 13th International Conference on Ion Sources, Gatlinburg, Tennessee, September 2009.
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10.1063/1.3318255
/content/aip/journal/rsi/81/2/10.1063/1.3318255
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/2/10.1063/1.3318255

Figures

Image of FIG. 1.
FIG. 1.

Schematic view of plasma chamber: x shows the distance between the center of center coil (Ref. 2) and upper stream end of electrode. “z” shows the distance between the center of center coil and lower stream end of bias disk. The extraction electrode installed just downstream of plasma electrode is also movable.

Image of FIG. 2.
FIG. 2.

Plasma electrodes: (a)(i) shape of plasma chamber side is flat, (b)(i) tapered with 66 degrees. Bias disk at the upper stream end of plasma chamber: (a)(ii) size of in diameter, (b)(ii) .

Image of FIG. 3.
FIG. 3.

Typical spectrum of which were optimized to maximize the ion current with charge of .

Image of FIG. 4.
FIG. 4.

Bias disk position dependence of current. (a) Result for the case of set A; (b) for set B. Typical mirror field in this region is also shown in upper figure (a).

Tables

Generic image for table
Table I.

Intensities of and for each case of A and B with several electrode position conditions. The “electrode position” is the distance between the center of center coil and upper stream end of electrode as shown in Fig. 1 by x. The other parameters such as mirror field strength, bias disk position, its biased voltage, and gas flow were optimized to maximize the current for each ion and each position of plasma electrode.

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/content/aip/journal/rsi/81/2/10.1063/1.3318255
2010-02-24
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Production of highly charged heavy ions by 18 GHz superconducting electron cyclotron resonance at Research Center for Nuclear Physicsa)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/2/10.1063/1.3318255
10.1063/1.3318255
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