The last quarter of the last century has witnessed major advancements that have brought imaging and radioanalytical techniques to a paramount status in life sciences and industry. Generally speaking, the scope of radiation imaging and radioanalytics covers data acquisi‐ tion, data processing, and data analysis, involving theories, methods, systems and applica‐ tions. While detection and post-processing techniques become increasingly sophisticated, traditional and emerging modalities play more and more critical roles in medical and indus‐ trial domains. The overall goal of this book.