Over the past few years there has been a growth in the uses of ultrasound as an energy source to promote or modify chemical reactivity. A new word has been coined to describe this area of scientific exploration and discovery - sonochemistry. This series has been designed to cater for both researchers and graduate students of the subject. A broad interpretation of the term sonochemistry has been taken, to encompass all aspects of chemistry which involve ultrasonic irradiation. Volume 4 focuses on the use of ultrasound in food processing as well as nuclear magnetic resonance spectroscopy combined with ultrasound. The first chapter brings together the various dosimetry methodologies available to sonochemists in order to show the range of options available. Chapter 2 reflects the increased interest shown in the UK and other European countries in the uses of ultrasound in metallurgy, with a study of light metal casting technology. An important subject area in this book is sonoelectrochemistry. In a major chapter devoted to this topic, the majority of applications of ultrasound in electrochemistry are covered, including electrochemical synthesis, battery technology, electrocrystallization, electroplating, and electroinitiated polymerization.