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Author : Charles S. Johnson,Don A. Gabriel
Publisher : Courier Corporation
Page : 116 pages
File Size : 41,5 Mb
Release : 2015-03-02
Category : Science
ISBN : 0486152200
Concise, accessible treatment focuses on two main topics: classical light scattering and dynamic light scattering. Indispensable for physicists, chemists, other workers in the field. 1981 edition.
Author : Benjamin Chu
Publisher : Courier Corporation
Page : 370 pages
File Size : 55,6 Mb
Release : 2007-05-11
Category : Science
ISBN : 9780486457987
Geared toward upper-level undergraduate and graduate students, this text introduces the interdisciplinary area of laser light scattering. It focuses chiefly on quasielastic laser scattering, discussing theoretical concepts at a realistic level. Some background in the physical sciences is assumed, but the opening chapters offer a brief review of classical electricity and magnetism as well as the general scattering theory. Topics include basic theoretical concepts related to light mixing spectroscopy, characteristics of the Fabry-Perot interferometer, and photon-counting fluctuations. The author, a distinguished professor in the Department of Chemistry at Stony Brook University, discusses experimental methods, including setting up a light scattering spectrometer using digital photon-counting and correlation techniques. Subsequent chapters explore applications to macromolecular systems, anemometry and its utility in reaction kinetics, and critical opalescence. References appear throughout the text.
Author : Benjamin Chu
Publisher : Unknown
Page : 368 pages
File Size : 51,6 Mb
Release : 1991
Category : Science
ISBN : UOM:39015021488625
Emphasizes the basic principles and applications of light scattering, and covers developments in the use of fibre optics for light scattering instrumentation, and the method of maximum entropy for Laplace inversion of time correlations functions. The book is based on a course taught by the author.
Author : Charles S. Johnson,Don A. Gabriel
Publisher : Dover Publications
Page : 0 pages
File Size : 53,5 Mb
Release : 1995-01-09
Category : Science
ISBN : 0486683281
Light scattering has provided an important method for characterizing macro-molecules for at least three decades. Now, through the use of intense, coherent laser light and efficient spectrum analyzers and autocorrelators, experiments in the frequency and time domains can be used to study molecular motion, e.g. diffusion and flow and other dynamic processes, as well as the equilibrium properties of solutions. As a result, laser light scattering has become a powerful form of spectroscopy with applications in physics, biochemistry, and other fields. This volume, which employs a relatively simple approach in order to reach the widest audience, focuses on two main topics: classical light scattering (scattering intensity, concentration dependence, size dependence, and polydispersity) and dynamic light scattering (time and frequency dependence, translational diffusion, directed flow, rotational motion, and more). A series of useful appendixes and a list of references complete this concise, accessible work, a valuable resource for physicists, chemists, and anyone interested in the increasingly important field of laser light scattering.
Author : Benjamin Chu
Publisher : Elsevier
Page : 330 pages
File Size : 47,5 Mb
Release : 1974-01-01
Category : Science
ISBN : 9780323162555
Laser Light Scattering
Author : J. C. Earnshaw
Publisher : Springer Science & Business Media
Page : 682 pages
File Size : 52,9 Mb
Release : 2013-11-21
Category : Science
ISBN : 9781468444872
Several previous Advanced Study Institutes have concentrated on the techniques of light scattering, while the biological appli cations were not fully explored. Many of the techniques are now standardised and are being applied to a wide range of biologically significant problems both in vivo and in vitro. While laser light scattering methods are superior to conventional methods, there was a general reluctance among biologists to adopt them because of the complexity of the physical techniques and the accompanying mathe matical analysis. Consequently valuable opportunities for advancing the understanding of the biological problems were being missed. Advances in the design and commercial availability of standard light scattering instruments, and the availability of standard computer programs, made the more widespread use of these techniques a practical reality for the biologist. While biologists are unable to cope with the complexities of the physical techniques, physicists are generally unaware of the nature and scale of the biological problems. The meeting at Maratea was an attempt to bring these two groups together and provide an impetus for the application of laser light scattering techniques to biology. This volume differs from the three previous proceedings on laser light scattering in the NATO ASI series (B3, B23, B73), in that it has been published in the Life Sciences series rather than the Physics series, reflecting the shift in emphasis from the development of a new technique to its application in biology.
Author : Bruce J. Berne,Robert Pecora
Publisher : Courier Corporation
Page : 482 pages
File Size : 49,8 Mb
Release : 2013-07-24
Category : Science
ISBN : 9780486320243
Lasers play an increasingly important role in a variety of detection techniques, making inelastic light scattering a tool of growing value in the investigation of dynamic and structural problems in chemistry, biology, and physics. Until the initial publication of this work, however, no monograph treated the principles behind current developments in the field.This volume presents a comprehensive introduction to the principles underlying laser light scattering, focusing on the time dependence of fluctuations in fluid systems; it also serves as an introduction to the theory of time correlation functions, with chapters on projection operator techniques in statistical mechanics. The first half comprises most of the material necessary for an elementary understanding of the applications to the study of macromolecules, or comparable sized particles in fluids, and to the motility of microorganisms. The study of collective (or many particle) effects constitutes the second half, including more sophisticated treatments of macromolecules in solution and most of the applications of light scattering to the study of fluids containing small molecules.With its wide-ranging discussions of the many applications of light scattering, this text will be of interest to research chemists, physicists, biologists, medical and fluid mechanics researchers, engineers, and graduate students in these areas.
Author : Redouane Borsali,Robert Pecora
Publisher : Springer Science & Business Media
Page : 1490 pages
File Size : 46,6 Mb
Release : 2008-07-28
Category : Science
ISBN : 9781402044649
This 2-volume set includes extensive discussions of scattering techniques (light, neutron and X-ray) and related fluctuation and grating techniques that are at the forefront of this field. Most of the scattering techniques are Fourier space techniques. Recent advances have seen the development of powerful direct imaging methods such as atomic force microscopy and scanning probe microscopy. In addition, techniques that can be used to manipulate soft matter on the nanometer scale are also in rapid development. These include the scanning probe microscopy technique mentioned above as well as optical and magnetic tweezers.
Author : Donal J. Sharpe
Publisher : Unknown
Page : 128 pages
File Size : 49,5 Mb
Release : 1995
Category : Electronic
ISBN : OCLC:53668493
Author : Martin W. Steer
Publisher : Unknown
Page : 128 pages
File Size : 47,9 Mb
Release : 1983
Category : Biomechanics
ISBN : OCLC:959765127
Author : Renliang Xu
Publisher : Springer Science & Business Media
Page : 399 pages
File Size : 43,5 Mb
Release : 2006-04-11
Category : Science
ISBN : 9780306471247
Particle characterization is an important component in product research and development, manufacture, and quality control of particulate materials and an important tool in the frontier of sciences, such as in biotechnology and nanotechnology. This book systematically describes one major branch of modern particle characterization technology - the light scattering methods. This is the first monograph in particle science and technology covering the principles, instrumentation, data interpretation, applications, and latest experimental development in laser diffraction, optical particle counting, photon correlation spectroscopy, and electrophoretic light scattering. In addition, a summary of all major particle sizing and other characterization methods, basic statistics and sample preparation techniques used in particle characterization, as well as almost 500 latest references are provided. The book is a must for industrial users of light scattering techniques characterizing a variety of particulate systems and for undergraduate or graduate students who want to learn how to use light scattering to study particular materials, in chemical engineering, material sciences, physical chemistry and other related fields.
Author : Benjamin Chu
Publisher : Academic Press
Page : 354 pages
File Size : 52,8 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780323161886
Laser Light Scattering: Basic Principles and Practice, Second Edition deals with the technical aspects of laser light scattering, including the basic principles and practice. Topics covered include light scattering theory, optical mixing spectrometry, photon correlation spectroscopy, and interferometry. Experimental methods and methods of data analysis are also described. This book is comprised of eight chapters and begins with a discussion on the interrelationship between laser light scattering and other types of scattering techniques that use X-rays and neutrons, with particular reference to momentum and energy transfers as well as time-averaged and time-dependent scattered intensity. The spectrum of scattered light and a single-particle approach to time-averaged scattered intensity are considered. The following chapters focus on photoelectric detection of the scattered electric field; optical mixing spectrometers; basic equations for photon correlation spectroscopy; and the principles of Fabry-Perot interferometry. The pertinent features of the experimental aspects of laser light scattering are also outlined, together with the Laplace inversion problem. The final chapter examines polymer molecular-weight distributions in relation to particle sizing. This monograph will be of interest to physicists.
Author : Yong Sun
Publisher : Unknown
Page : 0 pages
File Size : 45,7 Mb
Release : 2004
Category : Light
ISBN : OCLC:243547135
Static light scattering (SLS) and dynamic light scattering (DLS) techniques are used to measure characteristics of particles in dispersion. SLS measures the dependence of the average scattered intensity I, on the scattering angle and is sensitive to spatial variations in the dielectric constant E. DLS measures the time dependence of the scattered light. One fundamental application of light scattering techniques is the accurate measurement of the size distribution of particles in dispersion. Detailed experimental investigation of SLS and DLS has been attempted in this work, with experimental work based on dilute water dispersions of two different spherical particles, polystyrene latexes and poly(N-isopropylacrylamide) (PNIPAM) microgels. Size information is obtained from SLS measurements in the form of a particle size distribution G (R,) where R, is the static radius. Size information is obtained from DLS measurements in the form of a decay rate distribution G (I?) which depends on the decay rate I?. Although both SLS and DLS can be used to obtain size information from the scattered light, the information obtained using SLS and DLS is different. For the three polystyrene latex sphere samples studied in this thesis, the mean static radii obtained are consistent with that of the mean radii provided by the supplier. For all three samples, the apparent hydrodynamic radius is larger than the mean static radius by about 12%. For PNIPAM microgel spheres, the apparent hydrodynamic radius is also larger than the mean static radius. The size of the PNIPAM microgel particles is extremely temperature sensitive; the radius decreases by a factor of three as the temperature is raised from 15OC to 50?? Both the hydrodynamic and static radii show this behavior. The effect of the chemical crosslinker (N, N'-methylenebisacrylamide) content on the temperature sensitivity of the PNIPAM microgels and the temperature dependence of the ratio of the apparent hydrodynamic radius to the mean static radius are also discussed.
Author : Henk G. Merkus
Publisher : Springer Science & Business Media
Page : 535 pages
File Size : 55,5 Mb
Release : 2009-01-07
Category : Technology & Engineering
ISBN : 9781402090165
This book focuses on the practical aspects of particle size measurement: a major difference with existing books, which have a more theoretical approach. Of course, the emphasis still lies on the measurement techniques. For optimum application, their theoretical background is accompanied by quantitative quality aspects, limitations and problem identification. In addition the book covers the phenomena of sampling and dispersion of powders, either of which may be dominant in the overall analysis error. Moreover, there are chapters on the general aspects of quality for particle size analysis, quality management, reference materials and written standards, in- and on-line measurement, definitions and multilingual terminology, and on the statistics required for adequate interpretation of results. Importantly, a relation is made to product performance, both during processing as well as in final application. In view of its set-up, this book is well suited to support particle size measurement courses.
Author : United States International Trade Commission
Publisher : Unknown
Page : 132 pages
File Size : 53,8 Mb
Release : 1990
Category : Laser industry
ISBN : UCSD:31822003993672