The book "Questions of Atomic Science and Technology: Theoretical and Applied Physics, Issue 4, 2018", created by the team of authors, is a unique collection of modern research, analytical reviews and practical developments in the field of atomic physics and technologies .. This book will be an indispensable source of knowledge for scientists, engineers, students and anyone interested in advanced achievements in the field of nuclear energy, radiation safety and fundamental physical processes. The focus of this issue is on topical issues of theoretical and applied physics related to the development of atomic technologies. The authors reveal complex topics such as modeling nuclear processes, new approaches to managing radiation fluxes, and innovative methods in nuclear energy and radiation medicine. A special place is occupied by the analysis of modern challenges and prospects for the development of atomic science, which makes the book not only a scientific work, but also a valuable guide for practitioners looking for answers to topical questions of the industry. The book "Questions of Atomic Science and Technology: Theoretical and Applied Physics, Issue 4, 2018" is intended for a wide audience. It will be of interest to university students, graduate students, young scientists, as well as specialists working in the field of nuclear energy, radiation safety, particle physics and nuclear technology. In addition, this publication will attract the attention of those who seek to understand the complex physical processes underlying modern nuclear technologies and seek the scientific basis for the development of new methods and solutions. What makes this book especially valuable is an in-depth analysis of the current problems and challenges facing the nuclear industry. The authors share their research, highlighting not only the theoretical foundations, but also the applied aspects, which allows the reader to get a holistic view of the current state and future of atomic science. The book raises topics related to the safety of nuclear reactors, radioactive waste management, the development of new materials for nuclear installations and modeling of nuclear processes at the micro- and nano-level. The style of presentation in the book "Questions of Atomic Science and Technology" is distinguished by clarity and scientific rigor, which makes complex topics available to a wide range of readers with basic knowledge in physics. The authors use modern methods of presentation, illustrate theoretical concepts with practical examples and experimental data, which contributes to a better understanding and consolidation of the material. This issue continues the tradition of previous collections, combining scientific rigor with practical focus, making it a valuable tool for professional development and scientific research. If you are looking for a book that will help you understand how modern advances in atomic physics are transforming the energy sector, or want to delve deeper into complex nuclear processes, "Questions of Atomic Science and Technology: Theoretical and Applied Physics, Issue 4, 2018” will be your reliable companion This book is not just a collection of articles, but a real window into the future of nuclear science, which combines innovation, security and sustainable development. It deservedly takes its place among the best scientific publications on nuclear technologies and will be a valuable addition to any scientific library or training course in physics and engineering. Turning to this book, you will receive not only relevant information, but also inspiration for new research and practical solutions that can change the face of modern energy and technology. Don’t miss the chance to be part of a scientific dialogue that leads to the safe and effective use of atomic resources for the benefit of humanity.