{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25666"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25666","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Resonant elastic photon scattering from the nuclei 88Sr, 89Y, and 90Zr","abstract":"Nuclear resonant elastic photon scattering in the N=50 nuclei B8Sr, 89y , 90 and Zr was measured between 5 and 10 MeV excitation energy. Average elastic cross sections for natural targets were measured using tagged photons of resolution 60 to 150 keV and a NaI scintillation detector. Total cross sections were inferred from the elastic cross sections using assumptions of level density, distribution of widths, and average total width. Nuclear resonance fluorescence spectra were taken using incident bremsstrahlung with endpoint energies of 9.5 and 6.6 MeV and a Ge(Li) detector. Targets of natural Sr, y, and Zr and an enriched 90Zr target were used. Twelve nuclear levels in 90Zr three levels in another isotope of Zr, eleven levels in 88sr, and eleven levels in 89y were identified between 5 and 10 MeV. Values for gfo2/f were determined for each level and spins were deter-mined for eight of the levels. The nuclear resonance fluorescence results are compared with the measured average elastic cross sections.","abstract_html":"Nuclear resonant elastic photon scattering in the N=50 nuclei B8Sr, 89y , 90 and Zr was measured between 5 and 10 MeV excitation energy. Average elastic cross sections for natural targets were measured using tagged photons of resolution 60 to 150 keV and a NaI scintillation detector. Total cross sections were inferred from the elastic cross sections using assumptions of level density, distribution of widths, and average total width. Nuclear resonance fluorescence spectra were taken using incident bremsstrahlung with endpoint energies of 9.5 and 6.6 MeV and a Ge(Li) detector. Targets of natural Sr, y, and Zr and an enriched 90Zr target were used. Twelve nuclear levels in 90Zr three levels in another isotope of Zr, eleven levels in 88sr, and eleven levels in 89y were identified between 5 and 10 MeV. Values for gfo2/f were determined for each level and spins were deter-mined for eight of the levels. The nuclear resonance fluorescence results are compared with the measured average elastic cross sections.","abstract_has_math":false,"creators":["Cannell, Lynell Earline"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Brussel, M.K."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-07-05T19:32:54Z","date_published":"2011-07-05T19:32:54Z","updated_at":"2026-07-22T22:25:24Z","subjects":["resonant elastic photon scattering","elastic cross sections","nuclei","incident bremsstrahlung"],"languages":["en"],"rights":["1976 Lynell Earline Cannell"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["2444618"],"render_values":[{"text":"2444618","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25666","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Brussel, M.K."]},{"key":"dc:creator","label":"Author","values":["Cannell, Lynell Earline"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-07-05T19:32:54Z","10000-01-01","1976"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["resonant elastic photon scattering","elastic cross sections","nuclei","incident bremsstrahlung"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1976 Lynell Earline Cannell"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["2444618","http://hdl.handle.net/2142/25666"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Nuclear resonant elastic photon scattering in the N=50 nuclei B8Sr, 89y , 90 and Zr was measured between 5 and 10 MeV excitation energy. Average elastic cross sections for natural targets were measured using tagged photons of resolution 60 to 150 keV and a NaI scintillation detector. Total cross sections were inferred from the elastic cross sections using assumptions of level density, distribution of widths, and average total width. Nuclear resonance fluorescence spectra were taken using incident bremsstrahlung with endpoint energies of 9.5 and 6.6 MeV and a Ge(Li) detector. Targets of natural Sr, y, and Zr and an enriched 90Zr target were used. Twelve nuclear levels in 90Zr three levels in another isotope of Zr, eleven levels in 88sr, and eleven levels in 89y were identified between 5 and 10 MeV. Values for gfo2/f were determined for each level and spins were deter-mined for eight of the levels. The nuclear resonance fluorescence results are compared with the measured average elastic cross sections.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:32:54Z No. of bitstreams: 1 1976_cannell.pdf: 4612148 bytes, checksum: e6051b03d0f6a697f74666e12bc58fe7 (MD5)","Made available in DSpace on 2011-07-05T19:32:54Z (GMT). No. of bitstreams: 1 1976_cannell.pdf: 4612148 bytes, checksum: e6051b03d0f6a697f74666e12bc58fe7 (MD5) Previous issue date: 1976","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:32:54Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:43-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["Resonant elastic photon scattering from the nuclei 88Sr, 89Y, and 90Zr"]}]}],"canonical_facts":{"dc:contributor":["Brussel, M.K."],"dc:creator":["Cannell, Lynell Earline"],"dc:date":["2011-07-05T19:32:54Z","10000-01-01","1976"],"dc:description":["Nuclear resonant elastic photon scattering in the N=50 nuclei B8Sr, 89y , 90 and Zr was measured between 5 and 10 MeV excitation energy. Average elastic cross sections for natural targets were measured using tagged photons of resolution 60 to 150 keV and a NaI scintillation detector. Total cross sections were inferred from the elastic cross sections using assumptions of level density, distribution of widths, and average total width. Nuclear resonance fluorescence spectra were taken using incident bremsstrahlung with endpoint energies of 9.5 and 6.6 MeV and a Ge(Li) detector. Targets of natural Sr, y, and Zr and an enriched 90Zr target were used. Twelve nuclear levels in 90Zr three levels in another isotope of Zr, eleven levels in 88sr, and eleven levels in 89y were identified between 5 and 10 MeV. Values for gfo2/f were determined for each level and spins were deter-mined for eight of the levels. The nuclear resonance fluorescence results are compared with the measured average elastic cross sections.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:32:54Z No. of bitstreams: 1 1976_cannell.pdf: 4612148 bytes, checksum: e6051b03d0f6a697f74666e12bc58fe7 (MD5)","Made available in DSpace on 2011-07-05T19:32:54Z (GMT). No. of bitstreams: 1 1976_cannell.pdf: 4612148 bytes, checksum: e6051b03d0f6a697f74666e12bc58fe7 (MD5) Previous issue date: 1976","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:32:54Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:43-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["2444618","http://hdl.handle.net/2142/25666"],"dc:language":["en"],"dc:rights":["1976 Lynell Earline Cannell"],"dc:subject":["resonant elastic photon scattering","elastic cross sections","nuclei","incident bremsstrahlung"],"dc:title":["Resonant elastic photon scattering from the nuclei 88Sr, 89Y, and 90Zr"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:24Z"}