Density and geometry of single component plasmas

A. Speck; G. Gabrielse; P. Larochelle; D. Le Sage; B. Levitt; W. S. Kolthammer; R. McConnell; J. Wrubel; D. Grzonka; W. Oelert; T. Sefzick; Z. Zhang; D. Comeau; M. C. George; E. A. Hessels; C. H. Storry; M. Weel; J. Walz

doi:10.1016/j.physletb.2007.03.054

Density and geometry of single component plasmas

A. Speck, G. Gabrielse, P. Larochelle, D. Le Sage, B. Levitt, W. S. Kolthammer, R. McConnell, J. Wrubel, D. Grzonka, W. Oelert, T. Sefzick, Z. Zhang, D. Comeau, M. C. George, E. A. Hessels, C. H. Storry, M. Weel, J. Walz

Research output: Contribution to journal › Article

5 Scopus citations

Abstract

The density and geometry of over(p, ̄) and e⁺ plasmas in realistic trapping potentials are required to understand and optimize antihydrogen (over(H, ̄)) formation. An aperture method and a quadrupole oscillation frequency method for characterizing such plasmas are compared for the first time, using electrons in a cylindrical Penning trap. Both methods are used in a way that makes it unnecessary to assume that the plasmas are spheroidal, and it is shown that they are not. Good agreement between the two methods illustrates the possibility to accurately determine plasma densities and geometries within non-idealized, realistic trapping potentials.

Original language	English (US)
Pages (from-to)	119-123
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	650
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2007.03.054
State	Published - Jun 28 2007
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Cite this

Speck, A., Gabrielse, G., Larochelle, P., Le Sage, D., Levitt, B., Kolthammer, W. S., McConnell, R., Wrubel, J., Grzonka, D., Oelert, W., Sefzick, T., Zhang, Z., Comeau, D., George, M. C., Hessels, E. A., Storry, C. H., Weel, M., & Walz, J. (2007). Density and geometry of single component plasmas. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 650(2-3), 119-123. https://doi.org/10.1016/j.physletb.2007.03.054

Density and geometry of single component plasmas. / Speck, A.; Gabrielse, G.; Larochelle, P.; Le Sage, D.; Levitt, B.; Kolthammer, W. S.; McConnell, R.; Wrubel, J.; Grzonka, D.; Oelert, W.; Sefzick, T.; Zhang, Z.; Comeau, D.; George, M. C.; Hessels, E. A.; Storry, C. H.; Weel, M.; Walz, J.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 650, No. 2-3, 28.06.2007, p. 119-123.

Research output: Contribution to journal › Article

Speck, A, Gabrielse, G, Larochelle, P, Le Sage, D, Levitt, B, Kolthammer, WS, McConnell, R, Wrubel, J, Grzonka, D, Oelert, W, Sefzick, T, Zhang, Z, Comeau, D, George, MC, Hessels, EA, Storry, CH, Weel, M & Walz, J 2007, 'Density and geometry of single component plasmas', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 650, no. 2-3, pp. 119-123. https://doi.org/10.1016/j.physletb.2007.03.054

Speck, A. ; Gabrielse, G. ; Larochelle, P. ; Le Sage, D. ; Levitt, B. ; Kolthammer, W. S. ; McConnell, R. ; Wrubel, J. ; Grzonka, D. ; Oelert, W. ; Sefzick, T. ; Zhang, Z. ; Comeau, D. ; George, M. C. ; Hessels, E. A. ; Storry, C. H. ; Weel, M. ; Walz, J. / Density and geometry of single component plasmas. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2007 ; Vol. 650, No. 2-3. pp. 119-123.

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AB - The density and geometry of over(p, ̄) and e+ plasmas in realistic trapping potentials are required to understand and optimize antihydrogen (over(H, ̄)) formation. An aperture method and a quadrupole oscillation frequency method for characterizing such plasmas are compared for the first time, using electrons in a cylindrical Penning trap. Both methods are used in a way that makes it unnecessary to assume that the plasmas are spheroidal, and it is shown that they are not. Good agreement between the two methods illustrates the possibility to accurately determine plasma densities and geometries within non-idealized, realistic trapping potentials.

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Access to Document

10.1016/j.physletb.2007.03.054