This proceedings volume presents current developments in nuclear physics which are driven by new experimental facilities (e.g. radioactive ion beams, CEBAF, RHIC), as well as by cross-fertilization with astrophysics and particle physics. It starts at an introductory level and builds up to a stage where the reader can appreciate the challenges of current research fields. It is suitable for both theorists and experimentalists.

These proceedings are a collection of manuscripts of the lectures given at the Fourth International Summer School on Nuclear Physics Methods and Accelerators in Biology and Medicine. They provide a broad up-to-date review of the current knowledge and methods of Nuclear Physics and Particle Accelerators and their applications in medicine and biology. The material here will be of huge interest to university students of engineering, physics, medicine, and biology.