{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/23087"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/23087","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Ultrasonic reflection mode imaging of the acoustic nonlinearity parameter","abstract":"The problem of mathematically modeling the nonlinear interaction of ultrasound beams is addressed. The counterpropagation model is studied and a new model, called the copropagation reflection model, is proposed. The new model shows that the copropagation of the probe and the reflected pump leads to nonlinear interaction. Simulation of the nonlinear interaction of the pump and the probe shows that the sensitivity of the copropagation reflection is higher than the counterpropagation nonlinear interaction. The theoretical curves representing the different models are compared with experimental data obtained under different experimental conditions, and the experimental study of the nonlinear interaction shows that the copropagation reflection model is confirmed by experimental data. This model offers the possibility of achieving greater accuracy in nonlinear imaging.","abstract_html":"The problem of mathematically modeling the nonlinear interaction of ultrasound beams is addressed. The counterpropagation model is studied and a new model, called the copropagation reflection model, is proposed. The new model shows that the copropagation of the probe and the reflected pump leads to nonlinear interaction. Simulation of the nonlinear interaction of the pump and the probe shows that the sensitivity of the copropagation reflection is higher than the counterpropagation nonlinear interaction. The theoretical curves representing the different models are compared with experimental data obtained under different experimental conditions, and the experimental study of the nonlinear interaction shows that the copropagation reflection model is confirmed by experimental data. This model offers the possibility of achieving greater accuracy in nonlinear imaging.","abstract_has_math":false,"creators":["Houshmand, Hooman"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical Engineering","degree_department":null,"school":null,"contributors":["Cain, Charles A."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"10000-01-01","date_published":"10000-01-01","updated_at":"2026-07-22T22:25:21Z","subjects":["Engineering, Electronics and Electrical","Biophysics, Medical","Biophysics, General"],"languages":["eng"],"rights":["Copyright 1992 Houshmand, Hooman"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9215826","(UMI)AAI9215826"],"render_values":[{"text":"AAI9215826","href":null,"code":true},{"text":"(UMI)AAI9215826","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/23087","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Cain, Charles A."]},{"key":"dc:creator","label":"Author","values":["Houshmand, Hooman"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["10000-01-01","1992","2011-05-07T14:01:41Z"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical Engineering"]},{"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":["Engineering, Electronics and Electrical","Biophysics, Medical","Biophysics, General"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1992 Houshmand, Hooman"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9215826","(UMI)AAI9215826","http://hdl.handle.net/2142/23087"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The problem of mathematically modeling the nonlinear interaction of ultrasound beams is addressed. The counterpropagation model is studied and a new model, called the copropagation reflection model, is proposed. The new model shows that the copropagation of the probe and the reflected pump leads to nonlinear interaction. Simulation of the nonlinear interaction of the pump and the probe shows that the sensitivity of the copropagation reflection is higher than the counterpropagation nonlinear interaction. The theoretical curves representing the different models are compared with experimental data obtained under different experimental conditions, and the experimental study of the nonlinear interaction shows that the copropagation reflection model is confirmed by experimental data. This model offers the possibility of achieving greater accuracy in nonlinear imaging.","Made available in DSpace on 2011-05-07T14:01:41Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9215826.pdf: 3605090 bytes, checksum: dcf00c4bf6822926593e358a0c61faab (MD5) Previous issue date: 1992","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:02:05Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:29:30-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Ultrasonic reflection mode imaging of the acoustic nonlinearity parameter"]}]}],"canonical_facts":{"dc:contributor":["Cain, Charles A."],"dc:creator":["Houshmand, Hooman"],"dc:date":["10000-01-01","1992","2011-05-07T14:01:41Z"],"dc:description":["The problem of mathematically modeling the nonlinear interaction of ultrasound beams is addressed. The counterpropagation model is studied and a new model, called the copropagation reflection model, is proposed. The new model shows that the copropagation of the probe and the reflected pump leads to nonlinear interaction. Simulation of the nonlinear interaction of the pump and the probe shows that the sensitivity of the copropagation reflection is higher than the counterpropagation nonlinear interaction. The theoretical curves representing the different models are compared with experimental data obtained under different experimental conditions, and the experimental study of the nonlinear interaction shows that the copropagation reflection model is confirmed by experimental data. This model offers the possibility of achieving greater accuracy in nonlinear imaging.","Made available in DSpace on 2011-05-07T14:01:41Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9215826.pdf: 3605090 bytes, checksum: dcf00c4bf6822926593e358a0c61faab (MD5) Previous issue date: 1992","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:02:05Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:29:30-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"],"dc:identifier":["AAI9215826","(UMI)AAI9215826","http://hdl.handle.net/2142/23087"],"dc:language":["eng"],"dc:rights":["Copyright 1992 Houshmand, Hooman"],"dc:subject":["Engineering, Electronics and Electrical","Biophysics, Medical","Biophysics, General"],"dc:title":["Ultrasonic reflection mode imaging of the acoustic nonlinearity parameter"],"dc:type":["text"],"thesis:degree_discipline":["Electrical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:21Z"}