Basic Principles Of Synchrotron Radiation Induced X Ray Fluorescence Srxrf
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Basic Principles Of Synchrotron Radiation Induced X Ray Fluorescence Srxrf
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Author :
language : en
Publisher:
Release Date : 1990
Basic Principles Of Synchrotron Radiation Induced X Ray Fluorescence Srxrf written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
The characteristic x rays can be used as powerful analytical tools for qualitative and quantitative determination of the major, minor and trace composition of materials. X Ray Fluorescence (XRF) techniques used for almost four decade to solve many problems in basic, applied science, and in industry. The XRF techniques that were developed initially used crystal spectrometers, and are referred to in literature as Wavelength Dispersive (WD) techniques. These WD techniques are still used in many fields and have the merit of a excellent energy resolution that allows for the analysis of many elements while avoiding the overlapping of some fluorescence peaks. They are also particularly useful in a matrix that produces copious quantities of a particular radiation. The principal disadvantages of a WD system are the low efficiency of crystal and the reduced energy region in which crystal spectrometer can be used. In the 1960's, Solid State Detectors (SSD) were developed with energy resolution such that the Energy Dispersive XRF techniques could be developed. These SSD's overcame some of the limitations of the WD techniques. The most attractive characteristics of the EDXRF techniques are in their intrinsic multielemental and non destructive capabilities. The development of the high intensity, high brilliance Synchrotron Radiation (SR) sources have open the possibility to make microanalyses using the XRF techniques, increasing the interest of the scientific community for these techniques. In this paper the basic concepts of the XRF technique are reviewed taking in account the availability of the new sources of x rays. 32 refs., 7 figs.
Basic Principles Of Synchrotron Radiation Induced X Ray Fluorescence Srxpf
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Author :
language : en
Publisher:
Release Date : 1990
Basic Principles Of Synchrotron Radiation Induced X Ray Fluorescence Srxpf written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
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.
Synchrotron Radiation Induced X Ray Micro Analysis
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Author :
language : en
Publisher:
Release Date : 1992
Synchrotron Radiation Induced X Ray Micro Analysis written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Synchrotron Radiation induced X-ray micro Fluorescence analysis ([mu]-SRXRF) is compared with more conventional microanalytical techniques such as Secondary Ion Microscopy (SIMS) and Electron Probe X-ray Microanalysis (EPXMA) for two typical microanalytical applications. SRXRF and EPXMA are employed for the analysis of individual particles, showing the complementary character of both techniques. By means of element mapping of trace constituents in a heterogeneous feldspar, the strong and weak points of SRXRF in comparison to EPXMA and SIMS are illustrated. The most striking difference between SRXRF and the other two microanalytical methods is the ability of SRXRF to probe deep into the investigated Material, whereas SIMS and EPXMA only investigate the upper surface of the material. The possibilities of SRXRF at third generation synchrotron rings is also briefly discussed.
Metallointercalators
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Author : Janice Aldrich-Wright
language : en
Publisher: Springer
Release Date : 2011-04-06
Metallointercalators written by Janice Aldrich-Wright and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-06 with Science categories.
A comprehensive treatment of the characterisation techniques used in investigating inorganic and organic molecules that interact with biomolecules is presented to the reader in a clear fashion. The work consists of two parts: (i) synthetic aspects of metallointercalators along with targeting and improving transport and (ii) the various techniques that are used for probing their interactions, such as; DNA-NMR, PGSE-NMR, DNA ESI-MS, Linear and Circular Dichroism, Fluorescence Spectroscopy, Confocal Microscopy, Viscosity, TGA and dialysis, Microarrays, biological analysis. Chapters are devoted to the synthesis and the techniques used to study the interactions of inorganic complexes with biomolecules. Considerably detailed examples are used to help illustrate the application of these techniques. This book is a useful resource for an array of inorganic and organic advanced undergraduate and graduate courses and for researchers in drug discovery.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1990
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Power resources categories.
X Ray Fluorescence In Biological Sciences
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Author : Vivek K. Singh
language : en
Publisher: John Wiley & Sons
Release Date : 2022-04-11
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 2022-04-11 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.
Particle Induced X Ray Emission Spectrometry Pixe
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Author : Sven A. E. Johansson
language : en
Publisher: John Wiley & Sons
Release Date : 1995-08-18
Particle Induced X Ray Emission Spectrometry Pixe written by Sven A. E. Johansson 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 1995-08-18 with Science categories.
The authoritative handbook to exploiting the full power and versatility of PIXE— now and in the next century Respected for its practical accuracy and detection range of parts per million, particle-induced X-ray emission has enjoyed a secure place in the analytical arsenal of the nuclear physics laboratory. Yet, its undeniable analytical potential in other areas of science has scarcely been tapped. This unique reference, from PIXE specialists in biomedicine, atmospheric science, earth science, and art and archaeology, features a user-based look at PIXE's conceptual basics and methodology, with a view toward new and creative analytical work. Touching on every facet of PIXE technology, from basic instrumentation, specimens, the characteristics of X-ray spectroscopy, standardization of quantitative analysis, to the accuracy of PIXE analysis and its limits of detection, the book offers an unprecedented look at the newer uses of PIXE in such areas as: Applications of macro- and micro-PIXE in medicine, zoology, and botany Analysis of atmospheric aerosols Geological and extra-terrestrial material Analysis of gem stones, pottery, glass, and alloys As an exploratory tool for pigments and paintings and "paper-like" materials Complete with a comparative look contrasting PIXE with more conventional forms of analysis, this important reference is key to grasping the technique's practical specifics and exploiting its full analytical potential.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1993
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Aeronautics categories.
Analysis Of Individual Microscopic Particles By Means Of Synchrotron Radiation Induced X Ray Micro Fluorescence
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Author :
language : en
Publisher:
Release Date : 1992
Analysis Of Individual Microscopic Particles By Means Of Synchrotron Radiation Induced X Ray Micro Fluorescence written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.