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A Negative Lens Concept for Photoacoustic Tomography
Although a small point ultrasound transducer has a wide acceptance angle, its small active area leads to a high thermal-noise-induced electric voltage in the transducer, thus the sensitivity is low. By contrast, a finite size flat transducer has high sensitivity, but the acceptance angle is small, w...
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Main Authors: | , , |
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Formato: | Artigo |
Idioma: | Inglês |
Publicado em: |
2008
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Assuntos: | |
Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2602847/ https://ncbi.nlm.nih.gov/pubmed/18850859 |
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