Ring-based ultrasonic virtual point detector with applications to photoacoustic tomography | Zendy

Xinmai Yang | Zendy; Menglin Li | Zendy; Lihong V. Wang | Zendy

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Ring-based ultrasonic virtual point detector with applications to photoacoustic tomography

Author(s) -

Xinmai Yang,

Menglin Li,

Lihong V. Wang

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2749856

Subject(s) - detector , ultrasonic sensor , transducer , optics , point (geometry) , acoustics , omnidirectional antenna , tomography , signal (programming language) , noise (video) , physics , materials science , computer science , computer vision , telecommunications , mathematics , geometry , image (mathematics) , antenna (radio) , programming language

[[abstract]]An ultrasonic virtual point detector is constructed using the center of a ring transducer. The virtual point detector provides ideal omnidirectional detection free of any aperture effect. Compared with a real point detector, the virtual one has lower thermal noise and can be scanned with its center inside a physically inaccessible medium. When applied to photoacoustic tomography, the virtual point detector provides both high spatial resolution and high signal-to-noise ratio. It can also be potentially applied to other ultrasound-related technologies. (c) 2007 American Institute of Physics.[[fileno]]2030143010024[[department]]電機工程學

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