Now revised to reflect the new, clinically-focused certification exams, Review of Radiological Physics, Fourth Edition, offers a complete review for radiology residents and radiologic technologists preparing for certification. . This new edition covers x-ray production and interactions, projection and tomographic imaging, image quality, radiobiology, radiation protection, nuclear medicine, ultrasound, and magnetic resonance - all of the important physics information you need to understand the factors that improve or degrade image quality. Each chapter is followed by 20 questions for immediate self-assessment, and two end-of-book practice exams, each with 100 additional questions, offer a comprehensive review of the full range of topics. Key Features:� Mirrors the current clinically relevant focus of the certification exams - the key information radiologists need to know to perform their clinical duties.� Brand new, full color illustrations throughout the book enhance the learning experience� Focuses on the radiological physics of x-rays (projection radiography, fluoroscopy, and CT), as well as nuclear medicine, ultrasound, and MR.� Includes only the essential information needed to understand how images are created, aspects that impact image quality, and factors that affect radiation risks and costs.� Features helpful appendices such as a summary of SI units, radiological units and photometric quantities, and more.� An ideal physics review meant to be used in conjunction with a comprehensive textbook on medical imaging.