Xem 1-20 trên 74 kết quả Radiation physics
  • Preface This book is intended as a textbook for a course in radiation physics in aca-demic medical physics graduate programs. The book may also be of interestto the large number of professionals, not only physicists, who in their dailyoccupations deal with various aspects of medical physics and have a need toimprove their understanding of radiation physics.Medical physics is a rapidly growing specialty of physics, concerned withthe application of physics to medicine mainly, but not exclusively, in the ap-plication of ionizing radiation to diagnosis and treatment of human disease...

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  • Radiotherapy, also referred to as radiation therapy, radiation oncology or therapeutic radiology, is one of the three principal modalities used in the treatment of malignant disease (cancer), the other two being surgery and chemotherapy.

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  • The aim of this volume is threefold. It is intended, firstly, as a revision aid for students on Masters level degree courses in Radiation Science. These will already have received lectures at various levels of detail on most of the topics covered here. Experience has shown, however, that in preparing for examinations, especially oral examinations, students benefit from an opportunity to put details in the context of the whole. This I have tried to do by drawing attention to important connections that exist between topics treated in different chapters.

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  • Topics in Applied Physics is a well-established series of review books, each of which presents a comprehensive survey of a selected topic within the broad area of applied physics. Edited and written by leading research scientists in the f ield concerned, each volume contains review contributions covering the various aspects of the topic. Together these provide an overview of the state of the art in the respective f ield, extending from an introduction to the subject right up to the frontiers of contemporary research....

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  • THE first two books of Aristotle's Physics do not deal with problems in what we today call physics: Aristotle's own titles for them were probably ,Qoncirjujjg_prindpks' and 'Concerning nature' (Ross,pp. 1-6), andhe^ntesjsaphilosopher, not as a scientist. Nevertheless, Phys. II, at least, seems to be addressed to the sdentifi^jtudjntjof_nature_(the phusikos: 194*16, bio, i98a2a), and both books may, perhaps, most aptly be classified as philosophy of science.

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  • History of the Present Illness: Duration of chest pain. Location, radiation (to arm, jaw, back), character (squeezing, sharp, dull), intensity, rate of onset (gradual or sudden); relationship of pain to activity (at rest, during sleep, during exercise); relief by nitroglycerine; increase in frequency or severity of baseline anginal pattern. Improvement or worsening of pain. Past episodes of chest pain. Age of onset of angina.

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  • Gamma rays were discovered by Villard more than a hundred years ago. Rutherford gave the name -rays to the electrically neutral radiation emitted by the naturally occurring radioactive materials. Gamma rays are electromagnetic radiation, photons, which arises due to energy changes in the nucleus. It does not appear as an independent form of radiation, but it follows  and β decay, in those cases when the newly created core of the offspring is found in the excited state.

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  • The objective of this manual is to improve the international exchange of scientific information. The recommendations made to achieve this end come under three general headings. The first is the use of quantity calculus for handling physical quantities, and the general rules for the symbolism of quantities and units, described in chapter 1. The second is the use of internationally agreed symbols for the most frequently used quantities, described in chapter 2.

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  • The study of electromagnetic radiation (EM) can be divided into two distinct areas: full solution of Maxwell's Equations relevant to the specific boundary conditions in a special general case and into application of EM radiation that results in modern life e.g. medicine, telecommunication, electromagnetic compatibility (EMC) etc. The reader should have a specific scientific background and must be familiar with the fundamental ideas of EM theory for the first area. Basic understanding of applying the radiation techniques in modern life is needed for the second.

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  • This introduction to nuclear physics provides an excellent basis for a core undergraduate course in this area. The authors show how simple models can provide an understanding of the properties of nuclei, both in their ground and excited states, and of the nature of nuclear reactions. They include chapters on nuclear fission, its application in nuclear power reactors, the role of nuclear physics in energy production and nucleosynthesis in stars.

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  • Physics and engineering governing the applications of synchrotron radiation is based on enormous achievements during more than one hundred years in the filed of X-ray physics and technology. The contents of this book, starting with the very general aspects of synchrotron radiation investigated, have been developed by numerous scientist and experimentalist in this field during the past 20 years. The readers are recommended to visit the websites of major synchrotron facilities in the world, and update their knowledge of this rapidly changing and progressing field.

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  • Cerium, an element in the lanthanide series, has a number of radioactive isotopes. Several of these are produced in abundance in nuclear fission reactions associated with nuclear industry operations or detonation of nuclear devices. This report summarizes our present knowledge of the relevant physical, chemical, and biological properties of radiocerium as a basis for establishing radiation protection guidelines.

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  • This fourth revised edition of “Technical Basis of Radiation Therapy: Practical Clinical Applications”, edited by S. H. Levitt, J. A. Purdy, C. A. Perez, and S. Vijaykumar, continues this publication’s outstanding excellence in the definition of the technical advances for radiation therapy. The previous three editions were milestones in the definition of new technologies and how they would be applied in clinical practice.

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  • Nuclear Medicine is a fascinating application of nuclear physics. This wikibook is intended to support a basic introductory course in an early semester of an undergraduate program. It assumes that students have completed decent high school programs in maths and physics and are concurrently taking subjects in the medical sciences.

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  • There is hardly any book that aims at solving problems typically encountered in the laser field, and this book intends to fill the void. Following some initial exercises related to general aspects in laser physics (Chapt. I), the subsequent problems are organized along the following topics: (i) Interaction of radiation with matter either made of atoms or ions, weakly interacting with surrounding species, or made of more complicated elements such as molecules or semiconductors (Chapters 2 and 3). (ii) Wave propagation in optical media and optical resonators (Chapters 4 and 5)....

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  • The textbook written by Paul Davies in 19891 entitled, The New Physics, commenced with the following opinion. Many elderly scientists look back nostalgically at the first 30 years of the 20th century, and refer to it as the golden age of physics. Historians, however, may come to regard those years as the dawning of the New Physics. The events which the quantum and relativity theories set in train are only now impinging on science, and many physicists believe that the golden age was only the beginning of the revolution....

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  • Fear has dominated much of the experience of the human race from earliest times. Fear of death, fear of natural disaster, fear of human enemies and fear of deities: these were fused together beneath a dense shroud of the unseen and the unknown. The major impact of physics on civilisation has been to roll back this shroud. Physics explains. It enables us to see inside the Earth and inside our own bodies. It gives us ways to probe and to cure.

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  • This book is the brainchild of the fourth Optoelectronic and Photonic Winter School on “Biophotonics” which took place from 25th February 2007 to 3rd March 2007 in Sardagna, a small village on the mountains around Trento in Italy. This school, held every two years, have been promoted to trace the very fast developing technologies and the tremendous progress in photonics which have occurred and will occur in the near future. It is a common view that its current explosive development will lead to deep paradigm shifts in the near future.

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  • (BQ) Part 2 the book "Clark's essential physics in imaging for radiographers" presents the following contents: Principles of radiation detection and image formation, image quality, radiation dose and exposure indicators, image display and manipulation in medical imaging, radiation protection and safety,...

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  • This new edition has been prompted by the introduction of new legislation and guidance on the use of ionising radiation in the UK. In addition to providing a summary of these new regulations I have taken the opportunity to update certain chapters and encompass many of the helpful suggestions and comments I have received from reviewers, colleagues and students. In particular I have increased the number of examples of many of the pathological conditions so that a range of appearances is illustrated....

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