Laboratoire des Signaux et Systsmes

An experimental setup working at a frequency of 2 MIz has been used to evaluate the diffraction tomography method. Images of phantoms, such as nylon strings and natural rubber pipes, have been reconstructed using 8 views of the objects. The image is a map of the density of the induced sources in the object under investigatioh. An iterative method has been developed to extract from this density the values of C (speed of sound) and a (attenuation) in the phantom. Simulated results will be presented and discussed.