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Akademický článek

Deflected beam method for absolute current density determination

Autor: R. H. Mattish, T. J. Burke, P. R. Johnson, C. E. Sosolik, J. P. Marler

Publikováno v: AIP Advances, Vol 13, Iss 5, Pp 055206-055206-6 (2023)

We present a broadly applicable in situ method for profiling ion beams using electrostatic deflectors and a Faraday cup. By deconvolving the detector geometry from the resulting current profiles, spatially resolved absolute current density profiles a

Externí odkaz: https://doaj.org/article/6b2d9406bdee48e1b3adffd55561fc66

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Achieving Long Confinement in a Toroidal Electron Plasma

Autor: J. P. Marler, J. Smoniewski, Bao Ha, M. R. Stoneking, James R. Danielson, Thomas Sunn Pedersen

Publikováno v: AIP Conference Proceedings.

We observe the m = 1 diocotron mode in a partial toroidal trap, and use it as the primary diagnostic for observing the plasma confinement. The frequency of the m = 1 mode, which is approximately proportional to the trapped charge, decays on a three s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9aed988e19b6c6c68b7a0ecfdd8fb2b6
https://doi.org/10.1063/1.3122288

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Publisher’s Note: Confinement Time Exceeding One Second for a Toroidal Electron Plasma [Phys. Rev. Lett.100, 155001 (2008)]

Autor: M. R. Stoneking, J. P. Marler

Publikováno v: Physical Review Letters. 100

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::124ba54f5d5a253fba9fda900a9fa038
https://doi.org/10.1103/physrevlett.100.179901

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Excitation of electronic states of Ar, H(2), and N(2) by positron impact

Autor: J P, Sullivan, J P, Marler, S J, Gilbert, S J, Buckman, C M, Surko

Publikováno v: Physical review letters. 87(7)

We have measured the first state-resolved, absolute cross sections for positron excitation of electronic states of an atom or molecule using a high resolution (Delta E approximately 25 meV FWHM) beam of positrons from a Penning-Malmberg trap. We pres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::cb4a04395afab48c4890fa235c84c17c
https://pubmed.ncbi.nlm.nih.gov/11497889

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Akademický článek

Symmetric charge exchange for intermediate velocity noble gas projectiles.

Autor: Steven Bromley, C E Sosolik, J P Marler

Publikováno v: Journal of Physics B: Atomic, Molecular & Optical Physics; 11/14/2019, Vol. 52 Issue 21, p1-1, 1p

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Akademický článek

Positioning of the rf potential minimum line of a linear Paul trap with micrometer precision.

Autor: P F Herskind, A Dantan, M Albert, J P Marler, M Drewsen

Publikováno v: Journal of Physics B: Atomic, Molecular & Optical Physics; Aug2009, Vol. 42 Issue 15, p154008-154008, 1p

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