Dear readers;

In the book Radiation Physics and Health Effects-3, valuable scientific studies are written according to certain criteria and a total of 4 chapters are included. Our book Radiation Physics and Health Effects-3 contains very important information covering the research of competent scientists in the field. The purpose of creating this book was to collect the new approaches that scientists working in this field have revealed with their experiences and researches under one book and present them to the readers. In this context, this book, which was prepared in cooperation by scientists working in the field of radiation physics, contains very rich and important titles for the readership. This book is a book created in accordance with universal ethical principles and considering the innovations in science. Our greatest desire is for the book to be an important resource for all scientific readers who do scientific work in the field of radiation physics. It is aimed to prepare the book carefully within the time and possibilities. We would like to thank the publishing house and the chapter authors who contributed to this edition and wish them success in their work.