Determination of the number of ions in the Oxford electron beam ion trap

Margolis, H. S.; Varney, Amy; Jarjis, R.A.; Silver, J. D.

doi:10.1016/0168-583x(95)00012-7

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…Typical measured densities of particular charge states in multi-component EBIT ion clouds range from 5x108 cm 3 to 1x10 10 cm 3 [7,61]. Local ion densities can be higher than these values because of the steep gradient in the space charge potential of the electron beam.…”

Section: Typical Plasmna Parametersmentioning

confidence: 99%

“…This method was used by Gillaspy et al [7] and by Margolis et al [61] to determine the number Ba46+ ions in the trap, (3.1x105) or, with fewer assumptions, the ion density (1.0x10 8 cm 3 -1.1x10 9 cm-). Margolis et al [61] also measured densities of 1.3x10 10 cm-3 and 0.7x10 cm3 for Ar 16 + and Ar17+ ions respectively using the same method.…”

Section: Ion Number and Densitymentioning

confidence: 99%

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Trapped highly charged ion plasmas

Takács¹,

Gillaspy²

2002

AIP Conference Proceedings

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Abstract. Electron Beam Ion Trap (EBIT) devices and their special features are reviewed with attention to applications in highly charged ion plasma research. EBIT properties are presented based on information extracted from a variety of experiments reported in the literature. Topics discussed include typical parameters (Debye length, Wigner-Seitz radius, Coulomb coupling parameter, density, temperature, etc.), magnetic trapping mode, ion cloud shape, rotation, and evaporative cooling. We conclude that the quantitative understanding of highly charged ion plasmas inside an EBIT requires improved modeling and advanced diagnostic techniques.

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Section: Typical Plasmna Parametersmentioning

confidence: 99%

Section: Ion Number and Densitymentioning

confidence: 99%

Trapped highly charged ion plasmas

Takács¹,

Gillaspy²

2002

AIP Conference Proceedings

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“…Electron beam ion traps 1 developed at the Lawrence Livermore National Laboratory ͑LLNL͒ are versatile apparatus not only for spectroscopic studies of highly charged ions ͑HCIs͒ but also for studies on the interaction of HCIs with matter. Although about 6 EBITs [2][3][4] are in operation throughout the world at present, all EBITs have similar operational parameters, excluding the Super-EBIT 5 at LLNL and the Tokyo EBIT. [6][7][8] The maximum electron beam energy of the Tokyo EBIT is designed to be 340 keV while the Super-EBIT has achieved an energy of 210 keV.…”

Section: Introductionmentioning

confidence: 99%

The present status of the Tokyo electron beam ion trap

Nakamura¹,

Asada²,

Currell³

et al. 1998

Review of Scientific Instruments

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Recent progress of the Tokyo electron beam ion trap ͑Tokyo-EBIT͒ project is described. The Tokyo-EBIT is of an original design and construction with several features different from other EBITs in the world. The maximum energy and current of the electron beam are designed to be 340 keV and 300 mA with a magnetic field of 4.5 T. The ongoing and planned physics experiments are described and the results for the initial stage of operation of the Tokyo-EBIT are given.

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