{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/18332"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/18332","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Deuteron compton scattering below pion threshold","abstract":"A series of experiments were performed at the Tagged Photon Facility at MAX-lab in Lund, Sweden to study photon scattering from the deuteron and extract the neutron polarizabilities. The deuteron Compton scattering cross section was measured at laboratory angles of $60^o$, $120^o$, and $150^o$ for photon energies from 70 - 112 MeV. The photons were scattered from the Lund liquid deuterium target and detected in three large (20'' x 20'') NaI photon spectrometers. These detectors have sufficient energy resolution ($\\sim$2$\\%$ at 100 MeV) to separate the elastically and inelastically scattered photons. The extracted scattering cross section for this experiment was found to have angular distributions that matched prior experiments but needed a scaling factor to bring the absolute cross section into agreement. This scaling factor was determined to have a value of 1.47 $\\pm$ 0.10. Suggestions are made for future studies that could yield further knowledge of the scaling factor and potentially allow for this data to be re-normalized.","abstract_html":"A series of experiments were performed at the Tagged Photon Facility at MAX-lab in Lund, Sweden to study photon scattering from the deuteron and extract the neutron polarizabilities. The deuteron Compton scattering cross section was measured at laboratory angles of <span class=\"etd-inline-math\">60<sup>o</sup></span>, <span class=\"etd-inline-math\">120<sup>o</sup></span>, and <span class=\"etd-inline-math\">150<sup>o</sup></span> for photon energies from 70 - 112 MeV. The photons were scattered from the Lund liquid deuterium target and detected in three large (20&#x27;&#x27; x 20&#x27;&#x27;) NaI photon spectrometers. These detectors have sufficient energy resolution ($\\sim$2$\\%$ at 100 MeV) to separate the elastically and inelastically scattered photons. The extracted scattering cross section for this experiment was found to have angular distributions that matched prior experiments but needed a scaling factor to bring the absolute cross section into agreement. This scaling factor was determined to have a value of 1.47 $\\pm$ 0.10. Suggestions are made for future studies that could yield further knowledge of the scaling factor and potentially allow for this data to be re-normalized.","abstract_has_math":true,"creators":["Myers, Luke S."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Nathan, Alan M.","Hertzog, David W.","Stack, John D.","Mestre, Jose P."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-01-14T22:46:31Z","date_published":"2011-01-14T22:46:31Z","updated_at":"2026-07-22T22:25:11Z","subjects":["Neutron","Isoscalar","Polarizability"],"languages":["en"],"rights":["Copyright 2010 Luke S. Myers"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/18332","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Nathan, Alan M.","Hertzog, David W.","Stack, John D.","Mestre, Jose P."]},{"key":"dc:creator","label":"Author","values":["Myers, Luke S."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-01-14T22:46:31Z","2010-12"]},{"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."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Neutron","Isoscalar","Polarizability"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2010 Luke S. Myers"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/18332"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["A series of experiments were performed at the Tagged Photon Facility at MAX-lab in Lund, Sweden to study photon scattering from the deuteron and extract the neutron polarizabilities. The deuteron Compton scattering cross section was measured at laboratory angles of $60^o$, $120^o$, and $150^o$ for photon energies from 70 - 112 MeV. The photons were scattered from the Lund liquid deuterium target and detected in three large (20'' x 20'') NaI photon spectrometers. These detectors have sufficient energy resolution ($\\sim$2$\\%$ at 100 MeV) to separate the elastically and inelastically scattered photons. The extracted scattering cross section for this experiment was found to have angular distributions that matched prior experiments but needed a scaling factor to bring the absolute cross section into agreement. This scaling factor was determined to have a value of 1.47 $\\pm$ 0.10. Suggestions are made for future studies that could yield further knowledge of the scaling factor and potentially allow for this data to be re-normalized.","Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2010-08-20T14:46:21Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Myers_Luke.tex: 202253 bytes, checksum: 1d60577b867e77ab9bb6a51b2a6fd8fc (MD5) Myers_Luke.pdf: 8901411 bytes, checksum: 0c4dd1eb29efe67f0085a915a4147ba0 (MD5)","Made available in DSpace on 2011-01-14T22:46:31Z (GMT). No. of bitstreams: 3 Myers_Luke.pdf: 8903090 bytes, checksum: 899c4b00bb87be88d3aecb016e624048 (MD5) license.txt: 4060 bytes, checksum: 22008b7a8a5f0903751827222382c4f3 (MD5) Myers_Luke.tex: 202253 bytes, checksum: 1d60577b867e77ab9bb6a51b2a6fd8fc (MD5)"]},{"key":"dc:title","label":"Title","values":["Deuteron compton scattering below pion threshold"]}]}],"canonical_facts":{"dc:contributor":["Nathan, Alan M.","Hertzog, David W.","Stack, John D.","Mestre, Jose P."],"dc:creator":["Myers, Luke S."],"dc:date":["2011-01-14T22:46:31Z","2010-12"],"dc:description":["A series of experiments were performed at the Tagged Photon Facility at MAX-lab in Lund, Sweden to study photon scattering from the deuteron and extract the neutron polarizabilities. The deuteron Compton scattering cross section was measured at laboratory angles of $60^o$, $120^o$, and $150^o$ for photon energies from 70 - 112 MeV. The photons were scattered from the Lund liquid deuterium target and detected in three large (20'' x 20'') NaI photon spectrometers. These detectors have sufficient energy resolution ($\\sim$2$\\%$ at 100 MeV) to separate the elastically and inelastically scattered photons. The extracted scattering cross section for this experiment was found to have angular distributions that matched prior experiments but needed a scaling factor to bring the absolute cross section into agreement. This scaling factor was determined to have a value of 1.47 $\\pm$ 0.10. 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Myers"],"dc:subject":["Neutron","Isoscalar","Polarizability"],"dc:title":["Deuteron compton scattering below pion threshold"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:11Z"}