【摘 要】
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Background, Motivation and Objective A typical CMUT probe has a large number of fine cells placed side by side, where each membrane is mechanically coupled to neighboring supporting rims. When CMUTs r
【机 构】
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Hitachi Aloka Medical,Ltd., Japan Hitachi Aloka M
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Background, Motivation and Objective A typical CMUT probe has a large number of fine cells placed side by side, where each membrane is mechanically coupled to neighboring supporting rims. When CMUTs receive echo signals from test objects, some part of ultrasound are converted into the electric energy. On the other hand, because of the CMUT structures, the rest of them propagate into the backside of the CMUT cells through the rims. Those should cause an unnecessary acoustic reverberation which degrades the quality of diagnostic ultrasound images. In our study, optimized CMUT models have been investigated by one-dimensional transmission line simulation for ideal backside structures.
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