Basic Methods in Biological X-ray Microanalysis PDF Download

Author: Godfried M. Roomans
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 292

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Author: Joseph Goldstein
Publisher: Springer Science & Business Media
ISBN: 1461332737
Category : Science
Languages : en
Pages : 679

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Book Description
This book has evolved by processes of selection and expansion from its predecessor, Practical Scanning Electron Microscopy (PSEM), published by Plenum Press in 1975. The interaction of the authors with students at the Short Course on Scanning Electron Microscopy and X-Ray Microanalysis held annually at Lehigh University has helped greatly in developing this textbook. The material has been chosen to provide a student with a general introduction to the techniques of scanning electron microscopy and x-ray microanalysis suitable for application in such fields as biology, geology, solid state physics, and materials science. Following the format of PSEM, this book gives the student a basic knowledge of (1) the user-controlled functions of the electron optics of the scanning electron microscope and electron microprobe, (2) the characteristics of electron-beam-sample inter actions, (3) image formation and interpretation, (4) x-ray spectrometry, and (5) quantitative x-ray microanalysis. Each of these topics has been updated and in most cases expanded over the material presented in PSEM in order to give the reader sufficient coverage to understand these topics and apply the information in the laboratory. Throughout the text, we have attempted to emphasize practical aspects of the techniques, describing those instru ment parameters which the microscopist can and must manipulate to obtain optimum information from the specimen. Certain areas in particular have been expanded in response to their increasing importance in the SEM field. Thus energy-dispersive x-ray spectrometry, which has undergone a tremendous surge in growth, is treated in substantial detail.

Author: David C. Sigee
Publisher: Cambridge University Press
ISBN: 9780521415309
Category : Medical
Languages : en
Pages : 356

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Book Description
This book describes an integrated approach to the use of X-ray microanalysis in biology.

Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1712

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First multi-year cumulation covers six years: 1965-70.

Author:
Publisher: Academic Press
ISBN: 008088816X
Category : Science
Languages : en
Pages : 562

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Book Description
This volume demonstrates how cellular and associated electron microscopy contributes to knowledge about biological structural information, primarily at the nanometer level. It presents how EM approaches complement both conventional structural biology (at the high end, angstrom level of resolution) and digital light microscopy (at the low end, 100-200 nanometers). Basic techniques in transmission and scanning electron microscopy Detailed chapters on how to use electron microscopy when dealing with specific cellular structures, such as the nucleus, cell membrane, and cytoskeleton Discussion on electron microscopy of viruses and virus-cell interactions

Author: Patrick Echlin
Publisher: Springer Science & Business Media
ISBN: 0387857311
Category : Technology & Engineering
Languages : en
Pages : 329

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Book Description
Scanning electr on microscopy (SEM) and x-ray microanalysis can produce magnified images and in situ chemical information from virtually any type of specimen. The two instruments generally operate in a high vacuum and a very dry environment in order to produce the high energy beam of electrons needed for imaging and analysis. With a few notable exceptions, most specimens destined for study in the SEM are poor conductors and composed of beam sensitive light elements containing variable amounts of water. In the SEM, the imaging system depends on the specimen being sufficiently electrically conductive to ensure that the bulk of the incoming electrons go to ground. The formation of the image depends on collecting the different signals that are scattered as a consequence of the high energy beam interacting with the sample. Backscattered electrons and secondary electrons are generated within the primary beam-sample interactive volume and are the two principal signals used to form images. The backscattered electron coefficient ( ? ) increases with increasing atomic number of the specimen, whereas the secondary electron coefficient ( ? ) is relatively insensitive to atomic number. This fundamental diff- ence in the two signals can have an important effect on the way samples may need to be prepared. The analytical system depends on collecting the x-ray photons that are generated within the sample as a consequence of interaction with the same high energy beam of primary electrons used to produce images.

Author: Graham Lawes
Publisher:
ISBN: 9780471913900
Category : Electron microscopy
Languages : en
Pages : 103

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Author: Joseph Goldstein
Publisher: Springer Science & Business Media
ISBN: 1461344220
Category : Technology & Engineering
Languages : en
Pages : 598

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Book Description
In the spring of 1963, a well-known research institute made a market survey to assess how many scanning electron microscopes might be sold in the United States. They predicted that three to five might be sold in the first year a commercial SEM was available, and that ten instruments would saturate the marketplace. In 1964, the Cambridge Instruments Stereoscan was introduced into the United States and, in the following decade, over 1200 scanning electron microscopes were sold in the U. S. alone, representing an investment conservatively estimated at $50,000- $100,000 each. Why were the market surveyers wrongil Perhaps because they asked the wrong persons, such as electron microscopists who were using the highly developed transmission electron microscopes of the day, with resolutions from 5-10 A. These scientists could see little application for a microscope that was useful for looking at surfaces with a resolution of only (then) about 200 A. Since that time, many scientists have learned to appreciate that information content in an image may be of more importance than resolution per se. The SEM, with its large depth of field and easily that often require little or no sample prepara interpreted images of samples tion for viewing, is capable of providing significant information about rough samples at magnifications ranging from 50 X to 100,000 X. This range overlaps considerably with the light microscope at the low end, and with the electron microscope at the high end.

Author:
Publisher: Elsevier
ISBN: 008085947X
Category : Science
Languages : en
Pages : 605

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Book Description
Methods in Plant Cell Biology provides in two volumes a comprehensive collection of analytical methods essential for researchers and students in the plant sciences. Individual chapters, written by experts in the field, provide an introductory overview, followed by a step-by-step technical description of the methods. Key Features* Written by experts, many of whom have developed the individual methods described* Contains most, if not all, the methods needed for modern research in plant cell biology* Up-to-date and comprehensive* Full references* Allows quick access to relevant journal articles and to the sources of chemicals required for the procedures* Selective concentration on higher plant methods allows for particular emphasis on those problems specific to plants

Author: David W. Galbraith
Publisher: Academic Press
ISBN: 0125641516
Category : Medical
Languages : en
Pages : 605

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Book Description
Methods in Plant Cell Biology provides in two volumes a comprehensive collection of analytical methods essential for researchers and students in the plant sciences. Individual chapters, written by experts in the field, provide an introductory overview, followed by a step-by-step technical description of the methods. Key Features * Written by experts, many of whom have developed the individual methods described * Contains most, if not all, the methods needed for modern research in plant cell biology * Up-to-date and comprehensive * Full references * Allows quick access to relevant journal articles and to the sources of chemicals required for the procedures * Selective concentration on higher plant methods allows for particular emphasis on those problems specific to plants.