Dependences of quantitative ultrasound parameters on frequency and porosity in water-saturated nickel foams | Zendy

Kang Il Lee | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Dependences of quantitative ultrasound parameters on frequency and porosity in water-saturated nickel foams

Author(s) -

Kang Il Lee

Publication year - 2014

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4862878

Subject(s) - attenuation , attenuation coefficient , materials science , porosity , backscatter (email) , ultrasound , nickel , phase (matter) , correlation coefficient , power law , polynomial , optics , acoustics , composite material , physics , mathematics , mathematical analysis , statistics , telecommunications , quantum mechanics , computer science , metallurgy , wireless

The frequency-dependent phase velocity, attenuation coefficient, and backscatter coefficient were measured from 0.8 to 1.2 MHz in 24 water-saturated nickel foams as trabecular-bone-mimicking phantoms. The power law fits to the measurements showed that the phase velocity, the attenuation coefficient, and the backscatter coefficient were proportional to the frequency with exponents n of 0.95, 1.29, and 3.18, respectively. A significant linear correlation was found between the phase velocity at 1.0 MHz and the porosity. In contrast, the best regressions for the normalized broadband ultrasound attenuation and the backscatter coefficient at 1.0 MHz were obtained with the polynomial fits of second order.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research