### Friday, July 17

## MS72

Inverse Problems in Nondestructive Evaluation

2:00 PM-4:00 PM

*Room: Sidney Smith 1085*

This minisymposium addresses mathematical inverse problems that arise in nondestructive evaluation. The speakers will focus on the areas of electrical impedance and thermal imaging. The former holds particular promise in medical imaging; the latter offers promise in damage assessment in material structures and in industrial quality control. The speakers will focus on recent developments in reconstruction algorithms. The stability of these algorithms is of particular importance, due to the ill-posedness of the inverse problems which arise from the mathematical models of the relevant physical systems.

**Organizers: Lester F. Caudill, Jr.**

*University of Richmond*

**Kurt M. Bryan**

* Rose-Hulman Institute of Technology*
**2:00 Progress in Impedance Imaging**
- David Isaacson, Rensselaer Polytechnic Institute
**2:30 Stability and Reconstruction for an Inverse Problem in Thermal Nondestructive Evaluation**
*Kurt M. Bryan* and Lester F. Caudill, Jr., Organizers
**3:00 Planar Electrode Geometry in Electrical Impedance Imaging**
*Jennifer L. Mueller*, David Isaacson, Jonathan Newell and Julie Larson-Wiseman, Rensselaer Polytechnic Institute
**3:30 Corrosion Detection by Electrical Measurements**
*Peter G. Kaup*, Lafayette College; Fadil Santosa, University of Minnesota, Minneapolis; and Michael Vogelius, Rutgers University

LMH Created: 3/19/98; MMD Updated: 4/6/98