Interaction of radiation

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  • (BQ) Ebook "Reactor shielding for nuclear engineers" presentation of content: Historical background, sources of radiation, interactions of radiation with matter, radition transrort, monte carlo methods for radiation transport,... Invite you to consult.

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  • In 1961 the NCRP issued NCRP Report No. 28, A Manual of Radioactivity Procedures, which was published as the National Bureau of Standards Handbook 80. The report came to be one of the definitive works in the area of radioactivity measurements. As the development of new techniques, procedures, and equipment made parts of the Report obsolescent, the NCRP recognized the need to update and extend the document.

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  • I like playing around with words and letters. You probably know that LASER is an artificial word derived from “Light Amplification by Stimulated Emission of Radiation”. When starting my lecture on “Laser–Tissue Interactions” I tend to write this derivation on the board. I continue with “LIGHT: Lasers Irradiate Germinated and Healthy Tissues”. Why? Lasers cut everything, if appropriate laser parameters are selected. There is no shield around healthy tissue. And there is no laser that fits all sizes as some clothes do. Lasers never have been some kind of wonder instruments.

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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 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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  • Poverty is higher in remote rural areas and in inner cities, but the rural elderly are much more likely to be poor than those living in urban areas. Thirteen percent of rural elders 60 years and older were poor in 2000, compared with nine percent of elders living in a metro area [20]. Thus we expect to find the most evidence of impeded access for the poor elderly who reside in rural areas. We interact the proportion of elderly in poverty with the proportion in rural areas to include in the model.

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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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  • The advent of cancer therapy with the use of varous particle beams requires full understanding of radiation interactions with tumours and other materials for its optimal perfomance. Relevant knowledge in this respect comes from physics, chemistry, biology, medicine, and related technologies. A basic item of required Knowledge are the physical data that characterize the earliest phase of radiation interactions on the molecular level, which sets a stage for subsequent chemical and biological effects including the control of cancer.

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  • Atoms, Radiation, and Radiation Protection offers professionals and advanced students a comprehensive coverage of the major concepts that underlie the origins and transport of ionizing radiation in matter. Understanding atomic structure and the physical mechanisms of radiation interactions is the foundation on which much of the current practice of radiological health protection is based.

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  • From the early 1970s to mid-1990s, positron emission tomography (PET) as a diagnostic imaging modality had been for the most part used in experimental research. Clinical PET started only a decade ago. 82Rb-RbCl and 18F-Fluorodeoxyglucose were approved by the U.S. Food and Drug administration in 1989 and 1994, respectively, for clinical PET imaging. Reimbursement by Medicare was approved in 1995 for 82Rb-PET myocardial perfusion imaging and for 18F-FDG PET for various oncologic indications in 1999. Currently several more PET procedures are covered for reimbursement....

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  • The Handbook of Spectroscopy is intended to serve as an authoritative reference source for a broad audience involved in the research, teaching, learning, and practice of spectroscopic technologies. Spectroscopy is defined as the science that deals with interactions between electromagnetic radiation and matter.

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  • In this book, the performance characteristics of distributed feedback semiconductor laser diodes and optical tunable filters based on DFB laser structures have been investigated. As discussed in Chapter 1, these lasers can be used as optical sources and local oscillators in coherent optical communication networks, in which a stable single mode (in both the transverse plane and the longitudinal direction) and narrow spectral linewidth become crucial.

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  • The heat radiation from gas flaring greatly affects the surrounding environment and particular crops planted within the vicinity of gas flare stations (Abdulkareem and Odigure, 2002). It also has a devastating effect on microorganisms and aquatic life. Heat radiation from gas flaring also causes an increase in heat waves hence there is the possibility that habitants of Niger-Delta Area, where the gas flaring stations are located will suffer heart stroke, heart attacks and other ailments aggravated by the heat (Odigure et al., 2003).

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  • CHAPTER TWELVE Ecology and Evolution of Cambrian Reefs The history of reef building through the Cambrian records the replacement of predominantly microbial communities by those in which sessile animals participated in construction, so heralding a new reef ecosystem with elaborate trophic webs, complex organism interactions

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  • As charge-neutral particles, neutrons can only interact via strong interactions and ionize via secondary reactions. Most neutron detectors consist of a material that converts neutrons into charged particles within a conventional radiation detector

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  • The author also points out the exiting problems and obstacles in this field. In chapter seven, Adams et al. discuss how adenoviral vectors interact with human immune cells, particularly how adenoviral vectors interact with professional antigen presenting cells, namely dendritic cells. Chapter eight reviews the properties of the immune response induced by adenoviral vaccines and the mechanisms which control the quality of T cell response generated during such vaccination. Holst et al.

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  • This book deals with topics in atomic and molecular structure and dynamics that are important to astronomy. Indeed, the topics selected are of central interest to the field of astronomy, many having been initiated by the needs of understanding worlds other than ours. Except for some lunar surface material returned by the Apollo missions, and material naturally delivered to us by cosmic rays, comets, and meteors, our only access to the other worlds of our astronomical Universe is through our observations of electromagnetic radiation from them.

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  • The Secretary faces a number of threats. Physical threats include poisoning from radiation, chemical or bi- ological toxins. These threats are in addition to threats from explosives and individuals utilizing small arms or other military ordinance. More insidious threats are posed by collection efforts aimed at both the substance of the Secretary’s agenda and those aimed at analyzing security controls in order to compromise them in order to harm the Secretary at some later time.

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  • The experimental design was factorial with diet and environment as the main effects. Analyses of variance were conducted to determine the effects of diet, environment and their interaction on gain, feed conversion, and breast meat yield. Body weight and feed efficiency (feed/gain) were affected primarily by environment temperature. Turkeys grown in the warm temperature environment had less body weight especially at 19 wks of age with somewhat better feed efficiency (Table 4).

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  • Unique innovations stem from multiple collaborations: augmented reality is used to treat disease via simulated internal radiation therapy (Computer Vision and Systems Laboratory/LVSN); geospace technologies are used in the production of interactive games (GeoEduc3D); dynamic intelligence is used to create training applications for golfers (Pro Mental Coach, Frima, Brain Centre); artificial intelligence (twinned with man/machine interfaces) is found in the development of serious game training simulations (DRDC Valcartier).

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