A comprehensive record of all the facets of different applications of nuclear analytical techniques (NATs) is hardly possible because of the diversity of fields where NATs have been found indispensable since their advent more than 50 years ago. Owing to emerging alternative analytical techniques being more rapid, less costly and (perhaps) more user friendly, some people consider nuclear techniques as outdated, old fashioned or just too tedious. But, as will be seen from evidence given in this book, NATs are not dead; rather they enjoy a fascinating, rich span of applications, partially covering niches where other analytical techniques might not be competitive or where they simply cannot be applied at all.