Astatine and yttrium resonant ionization laser spectroscopy

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dc.contributor.authorTeigelhoefer, Andrea
dc.contributor.examiningcommitteePage, Shelly (Physics and Astronomy) Major, Arkady (Electrical and Computer Engineering)en_US
dc.contributor.supervisorGwinner, Gerald (Physics and Astronomy) Lassen, Jens (Physics and Astronomy)en_US
dc.date.accessioned2012-09-18T15:52:25Z
dc.date.available2012-09-18T15:52:25Z
dc.date.issued2012-09-18
dc.degree.disciplinePhysics and Astronomyen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractProviding intense, contamination-free beams of rare isotopes to experiments is a challenging task. At isotope separator on-line facilities such as ISAC at TRIUMF, the choice of production target and ion source are key to the successful beam delivery. Due to their element-selectivity, high efficiency and versatility, resonant ionization laser ion sources (RILIS) gain increasingly in importance. The spectroscopic data available are typically incomplete in the region of excited- and autoionizing atomic states. In order to find the most efficient ionization scheme for a particular element, further spectroscopy is often required. The development of efficient laser resonant ionization schemes for yttrium and astatine is presented in this thesis. For yttrium, two ionization schemes with comparable relative intensities were found. Since for astatine, only two transitions were known, the focus was to provide data on atomic energy levels using resonance ionization spectroscopy. Altogether 41 previously unknown astatine energy levels were found.en_US
dc.description.noteOctober 2012en_US
dc.identifier.urihttp://hdl.handle.net/1993/8866
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectastatineen_US
dc.subjectyttriumen_US
dc.subjectresonant ionization laser spectroscopyen_US
dc.subjectRILISen_US
dc.subjectautoionizationen_US
dc.subjectTi:Sa laseren_US
dc.titleAstatine and yttrium resonant ionization laser spectroscopyen_US
dc.typemaster thesisen_US
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