X-ray microanalysis in biology and medicine, by a. engstrom PDF Download
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Author: Arne Engstrom
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Arne Engstrom
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Arne Engström
Publisher:
ISBN:
Category : Microradiography
Languages : en
Pages : 108
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Author: A. Engström
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Arne Engström
Publisher:
ISBN:
Category : Microradiography
Languages : en
Pages : 108
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Author: H. H. Pattee
Publisher: Elsevier
ISBN: 1483277038
Category : Science
Languages : en
Pages : 641
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X-ray Optics and X-ray Microanalysis covers the proceedings of the Symposium on X-ray Optics and X-ray Microanalysis, held at Stanford University on August 22-24, 1962. The book focuses on X-ray microscopy, microradiography, radiation and irradiation, and X-ray microanalysis. The selection first offers information on the methods of X-ray microscopy and X-ray absorption microanalysis. Discussions focus on X-ray scanning microscopy, contact microradiography, point projection microscopy, and total dry-weight determinations. The text then takes a look at X-ray microanalysis in biology and medicine; electron microscopic enlargements of X-ray absorption micrographs; and automation in microradiography. The publication examines the production of Fresnel zone plates for extreme ultraviolet and soft X radiation; quantitative microradiographic studies of human epidermis; and irradiation effect on total organic nerve-cell material determined by integrating X-ray absorption. The manuscript then reviews the calculation of fluorescence excited by characteristic radiation in the X-ray microanalyzer and the method for calculating the absorption correction in electron-probe microanalysis. The selection is a valuable reference for readers interested in X-ray technology.
Author: David C. Sigee
Publisher: Cambridge University Press
ISBN: 9780521415309
Category : Medical
Languages : en
Pages : 356
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This book describes an integrated approach to the use of X-ray microanalysis in biology.
Author: Karl Zierold
Publisher: Springer Science & Business Media
ISBN: 364274477X
Category : Science
Languages : en
Pages : 331
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The aim of electron probe microanalysis of biological systems is to identify, localize, and quantify elements, mass, and water in cells and tissues. The method is based on the idea that all electrons and photons emerging from an electron beam irradiated specimen contain information on its structure and composition. In particular, energy spectroscopy of X-rays and electrons after interaction of the electron beam with the specimen is used for this purpose. However, the application of this method in biology and medicine has to overcome three specific problems: 1. The principle constituent of most cell samples is water. Since liquid water is not compatible with vacuum conditions in the electron microscope, specimens have to be prepared without disturbing the other components, in parti cular diffusible ions (elements). 2. Electron probe microanaly sis provides physical data on either dry specimens or fully hydrated, frozen specimens. This data usually has to be con verted into quantitative data meaningful to the cell biologist or physiologist. 3. Cells and tissues are not static but dynamic systems. Thus, for example, microanalysis of physiolo gical processes requires sampling techniques which are adapted to address specific biological or medical questions. During recent years, remarkable progress has been made to overcome these problems. Cryopreparation, image analysis, and electron energy loss spectroscopy are key areas which have solved some problems and offer promise for future improvements.
Author: M. A. Hayat
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 504
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Author: Ping-chin Cheng
Publisher: Springer Science & Business Media
ISBN: 3642728812
Category : Science
Languages : en
Pages : 429
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In 1979, a conference on x-ray microscopy was organized by the New York Academy of Sciences, and in 1983, the Second Interna tional Symposium on X-ray Imaging was organized by the Akademie der Wissenschaften in Gottingen, Federal Republic of Germany. This volume contains the contributions to the symposium "X-ray Microscopy '86", held in Taipei, Taiwan, the Republic of China in August 1986. This is the first volume which intends to provide up-to date information on x-ray imaging to biologists, therefore, emphasis was given to specimen preparation techniques and image interpreta tion. Specimen preparation represents a major part of every microscopy work, therefore, it should be strongly emphasized in this emerging field of x-ray microscopy. Theoretically, x-ray microscopy offers the potential for the study of unfixed, hydrated biological ma terials. Since very few biological system can be directly observed without specimen preparation, we would like to emphasize that new information on biological specimens can only be obtained if the speci men is properly prepared. In the past decade, many of the published x-ray images were obtained from poorly prepared biological speci mens, mainly air-dried materials. Therefore, one of the goals of this conference is to bring the importance of specimen preparation to the attention of x-ray microscopy community. X-ray microscopy can be subdivided into several major areas. They are the classic x-ray projection microscope, x-ray contact imag ing (microradiography) and the more recent x-ray scanning micro scope, x-ray photoelectron microscope and x-ray imaging microscope.
Author: Theodore Alvin Hall
Publisher: Charles C. Thomas Publisher
ISBN:
Category : Medical
Languages : en
Pages : 344
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