{"id":{"repo_id":"unr","oai_identifier":"oai:scholarwolf.unr.edu:11714/8456"},"canonical_url":"https://search.dev.ndltd.org/etd/unr/oai:scholarwolf.unr.edu:11714/8456","repository":{"repo_id":"unr","name":"University of Nevada - Reno","base_url":"https://scholarwolf.unr.edu/server/oai/request"},"display":{"title":"Theoretical Studies of L-shell X-ray Line Polarization and M-shell X-ray Spectroscopic Emission from Highly Ionized Xenon Ions","abstract":"The field of high-energy-density (HED) physics has important applications, such as inertial confinement fusion and the development of intense radiation sources. X-ray plasma spectroscopy and spectropolarimetry are integral to the study of HED plasmas. Comparison of x-ray line emission spectra to non-local thermodynamic equilibrium (non-LTE) modeling and inclusion of non-thermal effects provides insights to laboratory-produced plasmas and underlying atomic processes. Xenon (Xe) radiation has been extensively studied for lithography applications and Xe gas-puffs have proven to be efficient radiation sources. Consequently, a new M-shell Xe non-LTE model was constructed using atomic database calculations with the Flexible Atomic Code (FAC) and is presented in this dissertation. From this new model, plasma parameter-sensitive synthetic spectra are presented and benchmarked with two different HED plasma experiments. Notable results include a robust description of emission lines arising from ionization stages Co-like to Ar-like Xe that are identified in both experiments, the first is a laser-irradiated gas-puff and the second is a reversed polarity gas-puff Z-pinch. The difference between spectra was mostly caused by non-thermal effects manifesting in the Z-pinch as characteristic L-shell Xe lines. HED plasmas are able to produce beams of non-Maxwellian electrons that may cause partially polarized x-ray line emission. Expanding upon this work, comprehensive theoretical study of L-shell Xe and the effects of x-ray line polarization on dielectronic satellite lines is accomplished. X-ray line degree of polarization and polarization-dependent spectra of Na-like Xe influenced by electron beams were calculated using different formalism and methods. Accuracy of FAC atomic data was explored. Future development of current M-shell Xe model and L-shell Xe polarization work will focus on applications to various HED plasma experiments with Xe as dopants or uniform targets.","abstract_html":"The field of high-energy-density (HED) physics has important applications, such as inertial confinement fusion and the development of intense radiation sources. X-ray plasma spectroscopy and spectropolarimetry are integral to the study of HED plasmas. Comparison of x-ray line emission spectra to non-local thermodynamic equilibrium (non-LTE) modeling and inclusion of non-thermal effects provides insights to laboratory-produced plasmas and underlying atomic processes. Xenon (Xe) radiation has been extensively studied for lithography applications and Xe gas-puffs have proven to be efficient radiation sources. Consequently, a new M-shell Xe non-LTE model was constructed using atomic database calculations with the Flexible Atomic Code (FAC) and is presented in this dissertation. From this new model, plasma parameter-sensitive synthetic spectra are presented and benchmarked with two different HED plasma experiments. Notable results include a robust description of emission lines arising from ionization stages Co-like to Ar-like Xe that are identified in both experiments, the first is a laser-irradiated gas-puff and the second is a reversed polarity gas-puff Z-pinch. The difference between spectra was mostly caused by non-thermal effects manifesting in the Z-pinch as characteristic L-shell Xe lines. HED plasmas are able to produce beams of non-Maxwellian electrons that may cause partially polarized x-ray line emission. Expanding upon this work, comprehensive theoretical study of L-shell Xe and the effects of x-ray line polarization on dielectronic satellite lines is accomplished. X-ray line degree of polarization and polarization-dependent spectra of Na-like Xe influenced by electron beams were calculated using different formalism and methods. Accuracy of FAC atomic data was explored. Future development of current M-shell Xe model and L-shell Xe polarization work will focus on applications to various HED plasma experiments with Xe as dopants or uniform targets.","abstract_has_math":false,"creators":["Gill, Amandeep Kaur"],"institution":null,"degree_name":null,"degree_level":"Doctorate Degree","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Safronova, Alla"],"committee_chairs":[],"committee_members":["Kantsyrev, Victor","Rodrigue, Melodi","Tscherbul, Timur","Tucker, Matthew"],"year":2023,"date_issued":"2023","date_published":"2023","updated_at":"2026-07-27T21:46:52Z","subjects":["HED Plasmas","Non-LTE Modeling","X-ray Line Polarization"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11714/8456","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Safronova, Alla"]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Kantsyrev, Victor","Rodrigue, Melodi","Tscherbul, Timur","Tucker, Matthew"]},{"key":"dc:creator","label":"Author","values":["Gill, Amandeep Kaur"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2023-06-27T01:09:24Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2023-06-27T01:09:24Z"]},{"key":"dc:date.issued","label":"Date","values":["2023"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctorate Degree"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["HED Plasmas","Non-LTE Modeling","X-ray Line Polarization"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11714/8456"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The field of high-energy-density (HED) physics has important applications, such as inertial confinement fusion and the development of intense radiation sources. X-ray plasma spectroscopy and spectropolarimetry are integral to the study of HED plasmas. Comparison of x-ray line emission spectra to non-local thermodynamic equilibrium (non-LTE) modeling and inclusion of non-thermal effects provides insights to laboratory-produced plasmas and underlying atomic processes. Xenon (Xe) radiation has been extensively studied for lithography applications and Xe gas-puffs have proven to be efficient radiation sources. Consequently, a new M-shell Xe non-LTE model was constructed using atomic database calculations with the Flexible Atomic Code (FAC) and is presented in this dissertation. From this new model, plasma parameter-sensitive synthetic spectra are presented and benchmarked with two different HED plasma experiments. Notable results include a robust description of emission lines arising from ionization stages Co-like to Ar-like Xe that are identified in both experiments, the first is a laser-irradiated gas-puff and the second is a reversed polarity gas-puff Z-pinch. The difference between spectra was mostly caused by non-thermal effects manifesting in the Z-pinch as characteristic L-shell Xe lines. HED plasmas are able to produce beams of non-Maxwellian electrons that may cause partially polarized x-ray line emission. Expanding upon this work, comprehensive theoretical study of L-shell Xe and the effects of x-ray line polarization on dielectronic satellite lines is accomplished. X-ray line degree of polarization and polarization-dependent spectra of Na-like Xe influenced by electron beams were calculated using different formalism and methods. Accuracy of FAC atomic data was explored. Future development of current M-shell Xe model and L-shell Xe polarization work will focus on applications to various HED plasma experiments with Xe as dopants or uniform targets."]},{"key":"dc:format","label":"Dc Format","values":["PDF"]},{"key":"dc:title","label":"Title","values":["Theoretical Studies of L-shell X-ray Line Polarization and M-shell X-ray Spectroscopic Emission from Highly Ionized Xenon Ions"]}]}],"canonical_facts":{"dc:contributor.advisor":["Safronova, Alla"],"dc:contributor.committeemember":["Kantsyrev, Victor","Rodrigue, Melodi","Tscherbul, Timur","Tucker, Matthew"],"dc:creator":["Gill, Amandeep Kaur"],"dc:date.accessioned":["2023-06-27T01:09:24Z"],"dc:date.available":["2023-06-27T01:09:24Z"],"dc:date.issued":["2023"],"dc:description.abstract":["The field of high-energy-density (HED) physics has important applications, such as inertial confinement fusion and the development of intense radiation sources. X-ray plasma spectroscopy and spectropolarimetry are integral to the study of HED plasmas. Comparison of x-ray line emission spectra to non-local thermodynamic equilibrium (non-LTE) modeling and inclusion of non-thermal effects provides insights to laboratory-produced plasmas and underlying atomic processes. Xenon (Xe) radiation has been extensively studied for lithography applications and Xe gas-puffs have proven to be efficient radiation sources. Consequently, a new M-shell Xe non-LTE model was constructed using atomic database calculations with the Flexible Atomic Code (FAC) and is presented in this dissertation. From this new model, plasma parameter-sensitive synthetic spectra are presented and benchmarked with two different HED plasma experiments. Notable results include a robust description of emission lines arising from ionization stages Co-like to Ar-like Xe that are identified in both experiments, the first is a laser-irradiated gas-puff and the second is a reversed polarity gas-puff Z-pinch. The difference between spectra was mostly caused by non-thermal effects manifesting in the Z-pinch as characteristic L-shell Xe lines. HED plasmas are able to produce beams of non-Maxwellian electrons that may cause partially polarized x-ray line emission. Expanding upon this work, comprehensive theoretical study of L-shell Xe and the effects of x-ray line polarization on dielectronic satellite lines is accomplished. X-ray line degree of polarization and polarization-dependent spectra of Na-like Xe influenced by electron beams were calculated using different formalism and methods. Accuracy of FAC atomic data was explored. Future development of current M-shell Xe model and L-shell Xe polarization work will focus on applications to various HED plasma experiments with Xe as dopants or uniform targets."],"dc:format":["PDF"],"dc:identifier.uri":["http://hdl.handle.net/11714/8456"],"dc:subject":["HED Plasmas","Non-LTE Modeling","X-ray Line Polarization"],"dc:title":["Theoretical Studies of L-shell X-ray Line Polarization and M-shell X-ray Spectroscopic Emission from Highly Ionized Xenon Ions"],"dc:type":["Dissertation"],"thesis:degree_level":["Doctorate Degree"]},"updated_at":"2026-07-27T21:46:52Z"}