In the 20 years since the publication of the first edition, the field of radiology has advanced in ways that would have been difficult to predict. The most notable change relates to the way images are recorded and stored. Film and film processing, which had been used in the field since the very beginning, are becoming a thing of the past. Radiography has progressed dramatically to using digital technology, and that is the focus of this new edition. A goal of this text has always been to prepare the student who wishes to enter the x-ray servicing profession. This third edition has been completely rewritten and updated to focus on equipment currently in use and to address the latest in digital imaging. In addition, with new illustrations and a revised chapter order, the book is more approachable to students. The book includes chapters on the history and development of radiographic equipment; types of equipment found in the general radiographic room; fundamentals of radiography; safety practices in servicing; installation processes; preventive maintenance; image quality; troubleshooting and repair; theory, service, maintenance, and calibration of tomographic equipment; and the servicing, electronic calibrating, and troubleshooting of mammography units. In addition, there is expanded discussion on mobile x-ray units, paired with digital receptors, a growing trend in x-ray services. The book is further enhanced with many illustrations, including some new to this edition. The text continues to serve as a unique and timely universal manual for x-ray service and biomedical engineers and students as well as a helpful resource for radiologists.

A field guide and reference for field service engineers and in-house biomedical engineers servicing radiographic equipment, and for students of X-ray servicing. After a brief history of early use of X- rays in medicine and an overview of basic X-ray principles and system components, chapters cover safety hazards, installation of radiographic equipment, preventive maintenance, troubleshooting, and steps for repairing and testing X-ray systems. Other subjects include correcting common problems and establishing good customer relations. Includes reference appendices, bandw diagrams, and a glossary. Annotation copyrighted by Book News, Inc., Portland, OR

The X-ray equipment maintenance and repairs workbook is intended to help and guide staff working with, and responsible for, radiographic equipment and installations in remote institutions where the necessary technical support is not available, to perform routine maintenance and minor repairs of equipment to avoid break downs. The book can be used for self study and as a checklist for routine maintenance procedures.

A practical guide to the maintenance and repair of essential laboratory and hospital equipment. Intended for use in institutions that do not have specially trained technicians or engineers the book responds to the situation frequently seen in developing countries where much of the equipment is imported and adequate information on maintenance and repair is rarely provided by suppliers. With these special needs in mind the manual aims to help staff using specific types of equipment to understand basic principles of construction and operation adopt good working practices avoid common errors perform routine maintenance and spot the early signs of defects or deterioration. Advice on equipment repair concentrates on common causes of problems that can be solved without expertise in engineering. Throughout the manual line drawings illustrate features of construction and design while numerous checklists offer advice on periodic inspection and cleaning good working practices and the essential do's don'ts must's and never's of routine operation and maintenance. Information ranges from the steps to follow when recharging batteries through advice on how to protect microscopes in hot climates to instructions for changing a blown fuse in an ultrasound scanner. Basic safety procedures for protecting staff as well as patients are also described. The most extensive chapter covers the maintenance and repair of basic laboratory equipment moving from autoclaves and incubators to cell counters and systems for water purification. The remaining chapters describe the correct use maintenance and repair of diagnostic equipment anaesthetic and resuscitation equipment operating room equipment and ultrasound and X-ray diagnostic equipment.

During the past few decades we have witnessed an era of remarkable growth in the field of molecular biology. In 1950 very little was known of the chemical constitution of biological systems, the manner in which information was trans mitted from one organism to another, or the extent to which the chemical basis of life is unified. The picture today is dramatically different. We have an almost bewildering variety of information detailing many different aspects of life at the molecular level. There great advances have brought with them some breath-taking insights into the molecular mechanisms used by nature for rep licating, distributing and modifying biological information. We have learned a great deal about the chemical and physical nature of the macromolecular nucleic acids and proteins, and the manner in which carbohydrates, lipids and smaller molecules work together to provide the molecular setting of living sys tems. It might be said that these few decades have replaced a near vacuum of information with a very large surplus. It is in the context of this flood of information that this series of monographs on molecular biology has been organized. The idea is to bring together in one place, between the covers of one book, a concise assessment of the state of the subject in a well-defined field. This will enable the reader to get a sense of historical perspectiv(}-what is known about the field today-and a description of the frontiers of research where our knowledge is increasing steadily.