DocumentCode
2919173
Title
The pseudoinverse pattern synthesis method: experimental verification using a prototype cylindrical-section ultrasound hyperthermia phased-array applicator
Author
Ebbini, Emad S. ; Ngo, Francis ; Cain, Charles A.
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fYear
1989
fDate
3-6 Oct 1989
Firstpage
995
Abstract
A prototype 64-element, 75° cylindrical-section ultrasonic phased-array hyperthermia applicator has been designed and constructed. The ability of this applicator to focus ultrasonic energy at its geometric focus was verified in a water medium. The array was then driven by excitation vectors obtained using the pseudoinverse pattern synthesis method to generate shifted-focus and double-focus field patterns. The measured intensity profiles agree well with the theoretically predicted ones
Keywords
biomedical ultrasonics; biothermics; radiation therapy; US energy focusing; cylindrical-section ultrasound hyperthermia phased-array applicator; double-focus field pattern; excitation vectors; geometric focus; intensity profile; pseudoinverse pattern synthesis method; shifted-focus field pattern; water medium; Applicators; Circuits; Clocks; Frequency conversion; Heating; Hyperthermia; Performance analysis; Phased arrays; Prototypes; Ultrasonic imaging;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
Conference_Location
Montreal, Que.
Type
conf
DOI
10.1109/ULTSYM.1989.67138
Filename
67138
Link To Document