ATRAP Buffer-Gas Positron Accumulator

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dc.contributor.advisorHessels, Eric
dc.creatorComeau, Daniel Andre
dc.date.accessioned2015-08-28T14:51:13Z
dc.date.available2015-08-28T14:51:13Z
dc.date.copyright2014-06-25
dc.date.issued2015-08-28
dc.date.updated2015-08-28T14:51:13Z
dc.degree.disciplinePhysics And Astronomy
dc.degree.levelDoctoral
dc.degree.namePhD - Doctor of Philosophy
dc.description.abstractThe ATRAP collaboration has been creating antihydrogen, the simplest antimatter atom, since 2002 and has a long-term goal of performing precision laser spectroscopy on these antihydrogen atoms. ATRAP has produced antihydrogen by positron cooling of antiprotons and by a laser-controlled charge-exchange process. Both methods require large numbers of antiprotons and positrons (the constituent particles of antihydrogen). This dissertation describes the methods developed to increase the number of positrons available for the ATRAP experiments by a factor of 200. The development of the new positron loading scheme has enabled the ATRAP collaboration to greatly increase the daily rate of antihydrogen production. Positrons originating from a radioactive source travel through a moderating material and are accumulated in a differentially pumped vacuum chamber. When required, the positrons are sent through a complex magnetically-guided beamline to the location where antihydrogen is produced. The system built allows for a reliable, highly-efficient method of providing positrons to the ATRAP experiment.
dc.identifier.urihttp://hdl.handle.net/10315/29867
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectPhysics
dc.subject.keywordsAntihydrogen
dc.subject.keywordsAntimatter
dc.subject.keywordsPositron
dc.subject.keywordsCERN
dc.subject.keywordsATRAP
dc.titleATRAP Buffer-Gas Positron Accumulator
dc.typeElectronic Thesis or Dissertationen_US

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