J. Phys. IV France
Volume 125, June 2005
Page(s) 777 - 779

J. Phys. IV France 125 (2005) 777-779

DOI: 10.1051/jp4:2005125179

Thermal diffusivity of porcine tissues characterized by photoacoustic piezoelectric technique

C.-M. Gao1, S.-Y. Zhang1, Z. Zhang2 and X.-J. Shui1

1  Lab. of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
2  Nanjing First Hospital attached to Nanjing Medical University, Nanjing 210006, China

A photoacoustic piezoelectric method based on a simplified thermoelastic theory is employed to determine thermal diffusivities of biological materials. The thermal diffusivities of porcine tissues with fresh and dry conditions are characterized. It is shown that the photoacoustic piezoelectric method is especially effective for determining the macro-effective (average) thermal diffusivities of biological materials with micro-inhomogeneity and easy to be perform.

© EDP Sciences 2005