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Electron collisions with laser cooled and trapped metastable helium atoms: total scattering cross sections

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Uhlmann, Linda; Dall, Robert; Truscott, Andrew; Hoogerland, Maarten; Buckman, Stephen; Baldwin, Kenneth

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Absolute measurements of total scattering cross sections for low energy (5–70 eV) electrons by metastable helium (23S) atoms are presented. The measurements are performed using a magneto-optical trap which is loaded from a laser-cooled, bright beam of slow He(23S) atoms. The data are compared with predictions from convergent close coupling and R matrix with pseudostate calculations, and we find good agreement between experiment and theory.

dc.contributor.authorUhlmann, Linda
dc.contributor.authorDall, Robert
dc.contributor.authorTruscott, Andrew
dc.contributor.authorHoogerland, Maarten
dc.contributor.authorBuckman, Stephen
dc.contributor.authorBaldwin, Kenneth
dc.date.accessioned2009-09-10T03:40:25Z
dc.date.accessioned2010-12-20T06:05:15Z
dc.date.available2009-09-10T03:40:25Z
dc.date.available2010-12-20T06:05:15Z
dc.date.created3/05/2005
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/10440/826
dc.description.abstractAbsolute measurements of total scattering cross sections for low energy (5–70 eV) electrons by metastable helium (23S) atoms are presented. The measurements are performed using a magneto-optical trap which is loaded from a laser-cooled, bright beam of slow He(23S) atoms. The data are compared with predictions from convergent close coupling and R matrix with pseudostate calculations, and we find good agreement between experiment and theory.
dc.format.extent4 pages
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherAmerican Physical Society
dc.sourcePhysical Review Letters
dc.source.urihttp://prola.aps.org/abstract/PRL/v94/i17/e173201
dc.subjectKeywords: Close coupling; Laser-cooled; Low energy; Scattering cross sections; Atoms; Cooling; Electromagnetic wave scattering; Electron mobility; Electron traps; Laser applications; Helium
dc.titleElectron collisions with laser cooled and trapped metastable helium atoms: total scattering cross sections
dc.typeJournal article
local.description.refereedYes
local.identifier.citationvolume94
dc.date.issued2005
local.identifier.ariespublicationMigratedxPub9598
local.type.statusPublished Version
local.contributor.affiliationUhlmann, Linda, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.contributor.affiliationDall, Robert, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.contributor.affiliationTruscott, Andrew, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.contributor.affiliationHoogerland, Maarten, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.contributor.affiliationBaldwin, Kenneth, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.contributor.affiliationBuckman, Stephen, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.bibliographicCitation.issue17
local.bibliographicCitation.startpage173201-1-4
local.identifier.doi10.1103/PhysRevLett.94.173201
dc.date.updated2015-12-11T10:47:24Z
local.identifier.scopusID2-s2.0-27144537743
CollectionsANU Research Publications

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