Donald Thompson 
Review of Progress in Quantitative Nondestructive Evaluation 
Volume 4A

This volume (parts A and B) contains the edited papers presented at the annual Review of Progress in Quantitative NDE held at the University of California, San Diego, July 8-13, 1984. We have chosen to organize the papers by subject, an arrangement that we feel to be more useful for a reference volume than the order of paper presentation at the Review. To do this, topical subject headings have been selected under which the large majority of papers reasonably fall. These categories cover a broad spectrum of research in NDE and encompass activities from funda- mental work to early engineering applications. The scope and depth of the Review may be easily assessed by examination of the Table of Contents. The Review was sponsored by the Center for Advanced NDE at the Ames Lab- oratory of the U.S. Dept. of Energy in cooperation with the Office of Basic Energy Sciences, USDOE, the Materials Laboratory at Wright-Patterson AFB, and the Naval Sea Systems Command. Approximately 300 attendees re- presenting various government agencies, industry, and universities parti- cipated in the technical presentations, poster sessions, and discussions. This Review, possibly the most comprehensive annual symposium in NDE, provides a valuable forum for the timely exchange of technical informa- tion. A few highlights of the Review are summarized in the following paragraphs.