Comprehensive Ionization Model Development for the FEBIAD Ion Source and Its Application for TRIUMF’s Radioactive Ion Beam Program

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dc.contributor.authorMaldonado Millan, Fernando Alejandro
dc.contributor.supervisorGottberg, Alexander
dc.contributor.supervisorKarlen, Dean Albert
dc.date.accessioned2022-07-28T19:18:55Z
dc.date.available2022-07-28T19:18:55Z
dc.date.copyright2022en_US
dc.date.issued2022-07-28
dc.degree.departmentDepartment of Physics and Astronomyen_US
dc.degree.levelDoctor of Philosophy Ph.D.en_US
dc.description.abstractRadioactive isotopes enable advanced medical treatments and the study of nuclear structure, nuclear astrophysics, and fundamental symmetries. TRIUMF, Canada’s Particle Accelerator Centre, generates radioactive isotope beams using the Isotope Separation On-Line method. At TRIUMF, the Forced Electron Beam Induced Arc Discharge (FEBIAD) ion source is used to ionize specific isotopes but often presents limited performance and lower efficiencies compared to other facilities. To investigate the source limitation, elucidate the ionization mechanism, and propose improved and highly efficient sources for upcoming facilities, a combined numerical and experimental campaign has been undertaken. The developed numerical ionization model is able to describe the source as an electron impact ion source that is governed by strong space charge effects. The spatially distributed ionization rate is higher at specific locations of the anode volume, and this has been confirmed experimentally. The validated numerical model has been further used to propose simulation-based optimizations. With the overall optimization, the ionization efficiency for the TRIUMF FEBIAD is expected to increase ten-fold.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.bibliographicCitationMaldonado Millan F, Day Goodacre T, and Gottberg A. “Multiphysics simulation of a FEBIAD ion source”. Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with Mater. Atoms 463 2020, pp. 302–304. doi: 10.1016/j. nimb.2019.04.078.en_US
dc.identifier.bibliographicCitationMaldonado Millan F, Babcock C, Day Goodacre T, and Gottberg A. “Anomalous Ionization Regime in a Forced Electron Beam Induced Arc Discharge Ion Source for Singly Charged Radioactive Ion Beam Production”. J. Phys. Conf. Ser. 2244(1) 2022, p. 012074. doi: 10.1088/1742-6596/2244/1/012074.en_US
dc.identifier.urihttp://hdl.handle.net/1828/14082
dc.languageEnglisheng
dc.language.isoenen_US
dc.rightsAvailable to the World Wide Weben_US
dc.subjectRIBen_US
dc.subjectCOMSOLen_US
dc.subjectISOLen_US
dc.subjectFEBIADen_US
dc.subjectTRIUMFen_US
dc.subjectISACen_US
dc.subjectARIELen_US
dc.titleComprehensive Ionization Model Development for the FEBIAD Ion Source and Its Application for TRIUMF’s Radioactive Ion Beam Programen_US
dc.typeThesisen_US

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