Synchrotron Radiation Induced X Ray Emission Srixe

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Synchrotron Radiation Induced X Ray Emission Srixe

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Author :
language : en
Publisher:
Release Date : 1999

Synchrotron Radiation Induced X Ray Emission Srixe written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Elemental analysis using emission of characteristic x rays is a well-established scientific method. The success of this analytical method is highly dependent on the properties of the source used to produce the x rays. X-ray tubes have long existed as a principal excitation source, but electron and proton beams have also been employed extensively. The development of the synchrotron radiation x-ray source that has taken place during the past 40 years has had a major impact on the general field of x-ray analysis. Even tier 40 years, science of x-ray analysis with synchrotron x-ray beams is by no means mature. Improvements being made to existing synchrotron facilities and the design and construction of new facilities promise to accelerate the development of the general scientific use of synchrotron x-ray sources for at least the next ten years. The effective use of the synchrotron source technology depends heavily on the use of high-performance computers for analysis and theoretical interpretation of the experimental data. Fortunately, computer technology has advanced at least as rapidly as the x-ray technology during the past 40 years and should continue to do so during the next decade. The combination of these technologies should bring about dramatic advances in many fields where synchrotron x-ray science is applied. It is interesting also to compare the growth and rate of acceptance of this particular research endeavor to the rates for other technological endeavors. Griibler [1997] cataloged the time required for introduction, diffusion, and acceptance of technological, economic, and social change and found mean values of 40 to 50 years. The introduction of the synchrotron source depends on both technical and non-technical factors, and the time scale at which this seems to be occurring is quite compatible with what is seen for other major innovations such as the railroad or the telegraph. It will be interesting to see how long the present rate of technological change and increase in scientific use can be maintained for the synchrotron x-ray source. A short summary of the present state of the synchrotron radiation-induced x-ray emission (SRIXE) method is presented here. Basically, SRIXE experiments can include any that depend on the detection. of characteristic x-rays produced by the incident x-ray beam born the synchrotron source as they interact with a sample. Thus, experiments done to measure elemental composition, chemical state, crystal, structure, and other sample parameters can be considered in a discussion of SRIXE. It is also clear that the experimentalist may well wish to use a variety of complementary techniques for study of a given sample. For this reason, discussion of computed microtomography (CMT) and x-ray diffraction is included here. It is hoped that this present discussion will serve as a succinct introduction to the basic ideas of SRIXE for those not working in the field and possibly help to stimulate new types of work by those starting in the field as well as by experienced practitioners of the art. The topics covered include short descriptions of (1) the properties of synchrotron radiation, (2) a description of facilities used for its production, (3) collimated microprobe, (4) focused microprobes, (5) continuum and monoenergetic excitation, (6) detection limits, (7) quantitation, (8) applications of SRIXE, (9) computed microtomography (CMT), and (10)chemical speciation using x-ray absorption near-edge structure (XANES) and extended x-ray absorption fine structure (EXAFS). An effort has been made to cite a wide variety of work from different laboratories to show the vital nature of the field.

X Ray Fluorescence With Synchrotron Radiation

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Author :
language : en
Publisher:
Release Date : 1986

X Ray Fluorescence With Synchrotron Radiation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.

X-ray fluorescence (XRF) has long been used to make measurements of trace element concentrations in biological materials with very high sensitivity. It has not been previously possible to work with micrometer spatial resolutions because of the relatively low brightness of x-ray tubes. This situation is much improved by using synchrotron storage ring x-ray sources since the brightness of the synchrotron source is many orders of magnitude higher than is obtained with the most intense tube sources. These intense sources open the possibility of using the XRF technique for measurements with resolutions of approximately cellular dimensions. A description of a current research project at Brookhaven which uses synchrotron radiation induced x-ray emission (SRIXE) is presented to illustrate a specific application of the method in biology. 1 ref., 4 figs.

Handbook Of X Ray Spectrometry

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Author : Rene Van Grieken
language : en
Publisher: CRC Press
Release Date : 2001-11-27

Handbook Of X Ray Spectrometry written by Rene Van Grieken and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-11-27 with Science categories.

"Updates fundamentals and applications of all modes of x-ray spectrometry, including total reflection and polarized beam x-ray fluorescence analysis, and synchrotron radiation induced x-ray emission. Promotes the accurate measurement of samples while reducing the scattered background in the x-ray spectrum."

Implementation Of X Ray Microscopy And Micro Xanes Analysis For Investigations Of The Cellular Uptake And Cellular Metabolism Of Transition Metals

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Author :
language : en
Publisher:
Release Date : 2002

Implementation Of X Ray Microscopy And Micro Xanes Analysis For Investigations Of The Cellular Uptake And Cellular Metabolism Of Transition Metals written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

Micro-SRIXE (synchrotron-radiation-induced X-ray emission) and micro-XAS (X-ray absorption spectroscopy) were used to probe the uptake of exogenous metals by cells. The high flux and the sub-micron resolution of the hard X-ray microprobe, offer the experimenter the ability to obtain highly sensitive spatial and structural information of cellular elements. In this work the uptake of carcinogenic Cr(VI) was compared with that of a relatively non-toxic Cr(III) complex by micro-SRIXE mapping of whole cells. High intracellular Cr concentrations were observed in Cr(VI)-treated cells, while no significant Cr uptake was observed for Cr(III)-treated cells, as is consistent with uptake studies performed by other techniques. Micro-XANES analysis of Cr(V)- and Cr(VI)-treated cells showed that the predominant oxidation product following cellular metabolism was Cr(III). As shown by X-ray microscopic analysis of thin-sectioned cells, however, the reduction of Cr(VI) to Cr(III) did not occur at a fast enough rate to exclude Cr entry into the cell nucleus.

Chemical Applications Of Synchrotron Radiation X Ray Applications

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Author : Tsun-Kong Sham
language : en
Publisher: World Scientific
Release Date : 2002

Chemical Applications Of Synchrotron Radiation X Ray Applications written by Tsun-Kong Sham and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.

Workshop On X Ray Instrumentation For Synchrotron Radiation Research

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Author : Stanford Synchrotron Radiation Laboratory
language : en
Publisher:
Release Date : 1978

Workshop On X Ray Instrumentation For Synchrotron Radiation Research written by Stanford Synchrotron Radiation Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Detectors categories.

X Ray Fluorescence In Biological Sciences

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Author : Vivek K. Singh
language : en
Publisher: John Wiley & Sons
Release Date : 2022-03-28

X Ray Fluorescence In Biological Sciences written by Vivek K. Singh and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-28 with Science categories.

X-Ray Fluorescence in Biological Sciences Discover a comprehensive exploration of X-ray fluorescence in chemical biology and the clinical and plant sciences In X-Ray Fluorescence in Biological Sciences: Principles, Instrumentation, and Applications, a team of accomplished researchers delivers extensive coverage of the application of X-ray fluorescence (XRF) in the biological sciences, including chemical biology, clinical science, and plant science. The book also explores recent advances in XRF imaging techniques in these fields. The authors focus on understanding and investigating the intercellular structures and metals in plant cells, with advanced discussions of recently developed micro-analytical methods, like energy dispersive X-ray fluorescence spectrometry (EDXRF), total reflection X-ray fluorescence spectrometry (TXRF), micro-proton induced X-ray emission (micro-PIXE), electron probe X-ray microanalysis (EPXMA), synchrotron-based X-ray fluorescence microscopy (SXRF, SRIXE, or micro-XRF) and secondary ion mass spectrometry (SIMS). With thorough descriptions of protocols and practical approaches, the book also includes: A thorough introduction to the historical background and fundamentals of X-ray fluorescence, as well as recent developments in X-ray fluorescence analysis Comprehensive explorations of the general properties, production, and detection of X-rays and the preparation of samples for X-ray fluorescence analysis Practical discussions of the quantification of prepared samples observed under X-ray fluorescence and the relation between precision and beam size and sample amount In-depth examinations of wavelength-dispersive X-ray fluorescence and living materials Perfect for students and researchers studying the natural and chemical sciences, medical biology, plant physiology, agriculture, and botany, X-Ray Fluorescence in Biological Sciences: Principles, Instrumentation, and Applications will also earn a place in the libraries of researchers at biotechnology companies.

Handbook Of Practical X Ray Fluorescence Analysis

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Author : Burkhard Beckhoff
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-18

Handbook Of Practical X Ray Fluorescence Analysis written by Burkhard Beckhoff and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-18 with Science categories.

X-Ray fluorescence analysis is an established technique for non-destructive elemental materials analysis. This book gives a user-oriented practical guidance to the application of this method. The book gives a survey of the theoretical fundamentals, analytical instrumentation, software for data processing, various excitation regimes including gracing incidents and microfocus measurements, quantitative analysis, applications in routine and micro analysis, mineralogy, biology, medicine, criminal investigations, archeology, metallurgy, abrasion, microelectronics, environmental air and water analysis. This book is the bible of X-Ray fluorescence analysis. It gives the basic knowledge on this technique, information on analytical equipment and guides the reader to the various applications. It appeals to researchers, analytically active engineers and advanced students.

Synchrotron Radiation Research A Survey Of Recent Developments

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Author : Stanford University. Hansen Laboratories. Stanford Synchrotron Radiation Project
language : en
Publisher:
Release Date : 1977

Synchrotron Radiation Research A Survey Of Recent Developments written by Stanford University. Hansen Laboratories. Stanford Synchrotron Radiation Project and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Synchrotron radiation categories.

Microprobe Techniques In The Earth Sciences

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Author : Philip J. Potts
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Microprobe Techniques In The Earth Sciences written by Philip J. Potts and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

30% discount for members of The Mineralogical Society of Britain and Ireland This text covers the range of microanalytical techniques available for the analysis of geological samples, principally in research applications. Each chapter is written in a clear, informative style and has a tutorial element, designed to introduce each technique for the beginning and experienced researcher alike.