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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.author Maldonado Millan, Fernando Alejandro
dc.date.accessioned 2022-07-28T19:18:55Z
dc.date.available 2022-07-28T19:18:55Z
dc.date.copyright 2022 en_US
dc.date.issued 2022-07-28
dc.identifier.uri http://hdl.handle.net/1828/14082
dc.description.abstract Radioactive 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.language English eng
dc.language.iso en en_US
dc.rights Available to the World Wide Web en_US
dc.subject RIB en_US
dc.subject COMSOL en_US
dc.subject ISOL en_US
dc.subject FEBIAD en_US
dc.subject TRIUMF en_US
dc.subject ISAC en_US
dc.subject ARIEL en_US
dc.title Comprehensive Ionization Model Development for the FEBIAD Ion Source and Its Application for TRIUMF’s Radioactive Ion Beam Program en_US
dc.type Thesis en_US
dc.contributor.supervisor Gottberg, Alexander
dc.contributor.supervisor Karlen, Dean Albert
dc.degree.department Department of Physics and Astronomy en_US
dc.degree.level Doctor of Philosophy Ph.D. en_US
dc.identifier.bibliographicCitation Maldonado 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.bibliographicCitation Maldonado 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.description.scholarlevel Graduate en_US


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