Penning ionization studies in a flowing helium afterglow

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dc.contributor.advisorDunning, F. Barryen_US
dc.contributor.committeeMemberWalters, G. Kingen_US
dc.contributor.committeeMemberJeys, Thomas H.en_US
dc.creatorKeiffer, Richard Sullivanen_US
dc.date.accessioned2018-12-18T21:15:44Zen_US
dc.date.available2018-12-18T21:15:44Zen_US
dc.date.issued1985en_US
dc.description.abstractPenning Ionization reactions in a flowing helium afterglow are studied through measurements of the ejected electron energy distributions, P(e), and through spin angular momentum conservation measurements. Measurements of electron energy distributions from the Penning Ionization of Ar, N2O, CO2 by He(23S) metastable atoms compare quite well with known energy distributions. In addition, the Penning electron energy distribution of Rb is reported for the first time. Spin dependencies of the Penning process are studied by spin orienting the He(23S) metastable atoms prior to their collision with the reactant species. Measurements of the polarization of the electrons ejected in the Penning process provide a means of discerning the relative strengths of spin conserving and spin erasing entrance channels. The degree of spin conservation measured in the Penning Ionization of Cl2 and O2 (55% and 3%) agree qualitatively with predictions made from P(e) measurements of Cl2 and 2.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent81 ppen_US
dc.identifier.callnoThesis Phys. 1985 Keifferen_US
dc.identifier.citationKeiffer, Richard Sullivan. "Penning ionization studies in a flowing helium afterglow." (1985) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103966">https://hdl.handle.net/1911/103966</a>.en_US
dc.identifier.digitalRICE1592en_US
dc.identifier.urihttps://hdl.handle.net/1911/103966en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titlePenning ionization studies in a flowing helium afterglowen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysicsen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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