NOTE: This item is not available outside the Texas A&M University network. Texas A&M affiliated users who are off campus can access the item through NetID and password authentication or by using TAMU VPN. Non-affiliated individuals should request a copy through their local library's interlibrary loan service.
Microwave-induced thermoacoustic tomography: reconstruction by synthetic aperture
| dc.creator | Feng, Dazi | |
| dc.date.accessioned | 2012-06-07T23:04:06Z | |
| dc.date.available | 2012-06-07T23:04:06Z | |
| dc.date.created | 2001 | |
| dc.date.issued | 2001 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2001-THESIS-F39 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Thesis (M.S.)--Texas A&M University, 2001. | en |
| dc.description | Includes bibliographical references (leaves 33-39). | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | We have applied the synthetic-aperture method to linear-scanning microwave-induced thermoacoustic tomography in biological tissues. A non-focused ultrasonic transducer was used to receive thermoacoustic signals, to which the delay-and-sum algorithm was applied for image reconstruction. We greatly improved the lateral resolution of images and acquired a clear view of the circular boundaries of buried cylindrical objects, which could not be obtained in conventional linear-scanning microwave-induced thermoacoustic tomography (LMTT) based on focused transducers. Two microwave sources, which had frequencies of 9 GHz and 3 GHz, respectively, were used in the experiments for comparison. The 3-GHz system had a much larger imaging depth but a lower signal-noise ratio than the 9-GHz system. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | biomedical engineering. | en |
| dc.subject | Major biomedical engineering. | en |
| dc.title | Microwave-induced thermoacoustic tomography: reconstruction by synthetic aperture | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | biomedical engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
Files in this item
This item appears in the following Collection(s)
-
Digitized Theses and Dissertations (1922–2004)
Texas A&M University Theses and Dissertations (1922–2004)
Request Open Access
This item and its contents are restricted. If this is your thesis or dissertation, you can make it open-access. This will allow all visitors to view the contents of the thesis.