{"id":{"repo_id":"rice","oai_identifier":"oai:repository.rice.edu:1911/104117"},"canonical_url":"https://search.dev.ndltd.org/etd/rice/oai:repository.rice.edu:1911/104117","repository":{"repo_id":"rice","name":"Rice University","base_url":"https://repository.rice.edu/server/oai/request"},"display":{"title":"Two photon parametric conversion of Moessbauer gamma rays","abstract":"This thesis considers aspects of parametric conversion of Mossbauer gamma rays. This process is important because it could be used to tune the output of a gamma ray laser; but, furthermore, it is a process of fundamental intrinsic interest in quantum electrodynamics. We first calculate the S matrix for the parametric process and obtain from this the differential cross section. We then discuss the signal sharpening which occurs for coherent parametric conversion near a Bragg angle and, finally, make a specific calculation of the expected counting rate from a crystal of Ytterbium 171.","abstract_html":"This thesis considers aspects of parametric conversion of Mossbauer gamma rays. This process is important because it could be used to tune the output of a gamma ray laser; but, furthermore, it is a process of fundamental intrinsic interest in quantum electrodynamics. We first calculate the S matrix for the parametric process and obtain from this the differential cross section. We then discuss the signal sharpening which occurs for coherent parametric conversion near a Bragg angle and, finally, make a specific calculation of the expected counting rate from a crystal of Ytterbium 171.","abstract_has_math":false,"creators":["Crofton, Bouldin Pat"],"institution":"Rice University","degree_name":"Master of Arts","degree_level":"Masters","degree_discipline":"Natural Sciences","degree_department":null,"school":null,"contributors":[],"advisors":["Hannon, James P."],"committee_chairs":[],"committee_members":[],"year":1975,"date_issued":"1975","date_published":"1975","updated_at":"2026-07-24T04:10:22Z","subjects":[],"languages":["eng"],"rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1911/104117","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Hannon, James P."]},{"key":"dc:creator","label":"Author","values":["Crofton, Bouldin Pat"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-12-18T21:17:37Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2018-12-18T21:17:37Z"]},{"key":"dc:date.issued","label":"Date","values":["1975"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Arts"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Rice University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright is held by the author, unless otherwise indicated. 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We then discuss the signal sharpening which occurs for coherent parametric conversion near a Bragg angle and, finally, make a specific calculation of the expected counting rate from a crystal of Ytterbium 171."]},{"key":"dc:title","label":"Title","values":["Two photon parametric conversion of Moessbauer gamma rays"]}]}],"canonical_facts":{"dc:contributor.advisor":["Hannon, James P."],"dc:creator":["Crofton, Bouldin Pat"],"dc:date.accessioned":["2018-12-18T21:17:37Z"],"dc:date.available":["2018-12-18T21:17:37Z"],"dc:date.issued":["1975"],"dc:description":["Text includes handwritten formulas"],"dc:description.abstract":["This thesis considers aspects of parametric conversion of Mossbauer gamma rays. This process is important because it could be used to tune the output of a gamma ray laser; but, furthermore, it is a process of fundamental intrinsic interest in quantum electrodynamics. We first calculate the S matrix for the parametric process and obtain from this the differential cross section. We then discuss the signal sharpening which occurs for coherent parametric conversion near a Bragg angle and, finally, make a specific calculation of the expected counting rate from a crystal of Ytterbium 171."],"dc:identifier.uri":["https://hdl.handle.net/1911/104117"],"dc:language.iso":["eng"],"dc:rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"dc:title":["Two photon parametric conversion of Moessbauer gamma rays"],"dc:type":["Thesis"],"thesis:degree_discipline":["Natural Sciences"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Arts"],"thesis:institution_name":["Rice University"]},"updated_at":"2026-07-24T04:10:22Z"}