Effects of Metal Particle Dopant on Acoustic Attenuation Properties of Silicone Rubber Lens for Medical Echo Array Probe
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概要
- 論文の詳細を見る
A low-acoustic-attenuation silicone rubber lens was developed by using a nanometer-size fine metal powder as a dopant for silicone rubber. Ten-nanometer-platinum (Pt)-powder-doped silicone rubber material showed not only a low sound velocity of 0.858 km/s, but also low acoustic attenuation properties, 0.84 dB/mmMHz with an acoustic impedance of 1.37 MRalys. By virtue of its low sound velocity and low attenuation, the Pt-doped silicone rubber provides a better figure of merit (attenuation x sound velocity) for the acoustic lens material of medical array probes than does silicone-rubber doped with conventional inorganic powders, namely, SiO2, TiO2, or Al2O3. The Pt-doped silicone lens material provides increased sensitivity for the high-frequency, 5 to 10-MHz-probe application because it can be used to realize a thinner lens than conventionally used.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-06-15
著者
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Hosono Yasuharu
Corporate R&d Center Toshiba Corp.
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Hosono Yasuharu
Corporate Research & Development Center Toshiba Corp.
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Yamashita Yohachi
Corporate R&d Center Toshiba Corp.
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Itsumi Kazuhiro
Corporate Research & Development Center Toshiba Corp.
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Yamashita Yohachi
Corporate Research & Development Center Toshiba Corp.
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