2011 Fiscal Year Final Research Report
Development of dynamic ultrasound scattering method and acoustic radiation field analysis of submicron suspended particles.
| Project/Area Number |
22750205
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | 超音波 / ダイナミクス / 散乱 / 微粒子 |
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| Research Abstract |
Radiation scattering techniques such as light scattering and small-angle X-ray scattering have been utilized to quantitatively characterize the microstructure of polymeric materials. An ultrasound method called Dynamic ultraSound Scattering(DSS) enables us to analyze optically turbid solutions, e. g., a suspension of carbon nanotubes, which is hardly detectable by optical techniques. However, the applicability of the ultrasound technique has been limited to the particle size above several micrometers because of the spatial resolution determined by the wavelength of Megahertz ultrasound, which is typically several tens of micrometers. In order to develop this technique applicable to sub-micron particles, we have studied a novel DSS system equipped with polymer or polymer/ceramics composite transducer to achieve the better spatial resolution with the higher frequency sound emission.
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