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 › peer-review

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

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2007.03.054

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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 › peer-review

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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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.",

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

note = "Funding Information: We are grateful to J. Bollinger for helpful comments on the manuscript. This work was supported by the NSF and AFOSR of the US, by the BMBF, DFG, and J{\"u}lich Laboratory of Germany, and also the NSERC, CRC, CFI and OIT of Canada. Copyright: Copyright 2007 Elsevier B.V., All rights reserved.",

year = "2007",

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doi = "10.1016/j.physletb.2007.03.054",

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pages = "119--123",

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T1 - Density and geometry of single component plasmas

AU - Speck, A.

AU - Gabrielse, G.

AU - Larochelle, P.

AU - Le Sage, D.

AU - Levitt, B.

AU - Kolthammer, W. S.

AU - McConnell, R.

AU - Wrubel, J.

AU - Grzonka, D.

AU - Oelert, W.

AU - Sefzick, T.

AU - Zhang, Z.

AU - Comeau, D.

AU - George, M. C.

AU - Hessels, E. A.

AU - Storry, C. H.

AU - Weel, M.

AU - Walz, J.

N1 - Funding Information: We are grateful to J. Bollinger for helpful comments on the manuscript. This work was supported by the NSF and AFOSR of the US, by the BMBF, DFG, and Jülich Laboratory of Germany, and also the NSERC, CRC, CFI and OIT of Canada. Copyright: Copyright 2007 Elsevier B.V., All rights reserved.

PY - 2007/6/28

Y1 - 2007/6/28

N2 - 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.

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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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 2-3

ER -

Density and geometry of single component plasmas

Abstract

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