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Neutron Scattering Instruments Of The Spallation Neutron Source
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Book Synopsis Neutron Scattering Instruments of the Spallation Neutron Source by :
Download or read book Neutron Scattering Instruments of the Spallation Neutron Source written by and published by . This book was released on 1998 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Spallation Neutron Source (SNS) is an accelerator-based short-pulse neutron scattering facility designed to meet the needs of the neutron scattering community in the US well into the next century. SNS is a US Department of Energy (DOE) construction project that is planned to be completed at Oak Ridge National Laboratory late in 2005. SNS is being designed and will be constructed by a 5-laboratory collaboration including Argonne National Laboratory, Brookhaven National Laboratory, Lawrence Berkeley National Laboratory, Los Alamos National Laboratory and Oak Ridge National Laboratory. The functional requirements for the SNS have been set by the scientific community and DOE. SNS will initially operate at 1 MW with one target station operating at 60 Hz and having 18 beam ports for neutron scattering experiments. The first 10 neutron scattering instruments are provided as part of the SNS construction project, and will be selected to span the types of science anticipated to be most important for this facility on the basis of input from the user community. This paper describes the process of selection and design of these first 10 instruments. The extensive R and D program to support the design and construction of these instruments and to help pave the way for future instruments will also be discussed. A set of 10 reference instruments has been developed to help establish the layout of the experiment hall and the interface between the instruments and the target station. This layout and some of the associated interface issues will be described. Examples of the design and performance of some of these reference instruments will also be discussed as an indication of the types of instrumentation involved and the new scientific capabilities that should be available when the SNS becomes operational.
Book Synopsis Neutron Scattering Instruments for the Spallation Neutron Source (SNS). by :
Download or read book Neutron Scattering Instruments for the Spallation Neutron Source (SNS). written by and published by . This book was released on 1998 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Spallation Neutron Source (SNS) is a 1 MW pulsed spallation source for neutron scattering planned for construction at Oak Ridge National Laboratory. This facility is being designed as a 5-laboratory collaboration project. This paper addresses the proposed facility layout, the process for selection and construction of neutron scattering instruments at the SNS, the initial planning done on the basis of a reference set of ten instruments, and the plans for research and development (R and D) to support construction of the first ten instruments and to establish the infrastructure to support later development and construction of additional instruments.
Book Synopsis Elements of Slow-Neutron Scattering by : J. M. Carpenter
Download or read book Elements of Slow-Neutron Scattering written by J. M. Carpenter and published by Cambridge University Press. This book was released on 2015-09-24 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and up-to-date introduction to the fundamental theory and applications of slow-neutron scattering.
Book Synopsis Neutrons in Soft Matter by : Toyoko Imae
Download or read book Neutrons in Soft Matter written by Toyoko Imae and published by John Wiley & Sons. This book was released on 2011-05-23 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron and synchrotron facilities, which are beyond the scale of the laboratory, and supported on a national level in countries throughout the world. These tools for probing micro- and nano-structure research and on fast dynamics research of atomic location in materials have been key in the development of new polymer-based materials. Different from several existing professional books on neutron science, this book focuses on theory, instrumentation, an applications. The book is divided into five parts: Part 1 describes the underlying theory of neutron scattering. Part 2 describes the various instruments that exist and the various techniques used to achieve neutron scattering or bombardment. Part 3 discusses data treatment and simulation methods as well as how to assess the environment of the sample (temperature, pressure, shear, and external fields). Part 4 addresses the myriad applications of small and large molecules, biomolecules, and gels. Part 5 describes the various global neutron sources that exist and provides an overview of the different reactors.
Book Synopsis Dynamically Polarized Sample for Neutron Scattering At the Spallation Neutron Source by :
Download or read book Dynamically Polarized Sample for Neutron Scattering At the Spallation Neutron Source written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The recently constructed Spallation Neutron Source at the Oak Ridge National Laboratory is quickly becoming the world s leader in neutron scattering sciences. In addition to the world s most intense pulsed neutron source, we are continuously constructing state of the art neutron scattering instruments as well as sample environments to address today and tomorrow s challenges in materials research. The Dynamically Polarized Sample project at the SNS is aimed at taking maximum advantage of polarized neutron scattering from polarized samples, especially biological samples that are abundant in hydrogen. Polarized neutron scattering will allow us drastically increase the signal to noise ratio in experiments such as neutron protein crystallography. The DPS project is near its completion and all key components have been tested. Here we report the current status of the project.
Book Synopsis Experimental Neutron Scattering by : Bertram Terence Martin Willis
Download or read book Experimental Neutron Scattering written by Bertram Terence Martin Willis and published by Oxford University Press. This book was released on 2009-03-19 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad survey of the work carried out by scientists at neutron centres around the world, which provide the facilities for generating intense beams of neutrons.These beams are essential in investigating the atomic structures of a wide range of materials such as magnetic alloys, superconductors, polymers, or proteins.
Author :Ian S. Anderson Publisher :SPIE-International Society for Optical Engineering ISBN 13 : Total Pages :286 pages Book Rating :4.3/5 (91 download)
Book Synopsis Advances in Neutron Scattering Instrumentation by : Ian S. Anderson
Download or read book Advances in Neutron Scattering Instrumentation written by Ian S. Anderson and published by SPIE-International Society for Optical Engineering. This book was released on 2002 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based partly on the original importers' catalogues and partly on the wide range of pieces handled by the author Bryan Catley, a leading specialist in the subject, this book covers a comprehensive range of art deco figures. Between the wars, an entirely modern style of decorative sculpture emerged which was a complete break with the heavy romantic late 19th century schools, and was totally in sympathy with the vibrant young society of the 1920s. The use of bronze and ivory for the great number of these sensual figures in no way obscures the the fact that many are of exceptionally high quality; add to this their sense of movement and rhythm and one realises that the large sums thay now command is a reflection of a discriminative international collectors' market. This new revised edition provides a comprehensive listing of the great variety and range of figures, of which there are still more to be found.
Book Synopsis Neutron Scattering – Fundamentals by : Masatoshi Arai
Download or read book Neutron Scattering – Fundamentals written by Masatoshi Arai and published by Elsevier Inc. Chapters. This book was released on 2013-11-22 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter, neutron experimental techniques are described. The chapter covers the basics of neutron scattering, neutron source characteristics, diffraction techniques, inelastic neutron scattering, instruments for semi-macroscopic structure analysis, detectors, optics, choppers, and some concepts for instrument design. Techniques for both steady and pulsed sources are described, with more emphasis on the latter in view of the recent worldwide trend toward pulsed sources, generally pulsed spallation sources. The source character, even within the class of pulsed sources, has a significant influence on instrument design. Inelasticity effects in the total scattering technique are clearly specified in the chapter. Some details of chopper instruments, including resolution effects, are described, since this class of instruments has recently received considerable innovative development and use over a wide range of science. Recent developments in scintillation detectors are discussed as an alternative technology to more conventional 3He detectors. Optical components are becoming more and more important not only for neutron transport but also for background reduction. Neutron spin-echo techniques are presented as an example of the exploitation of polarized neutrons.
Book Synopsis A Preliminary Design Report for Five Advanced Neutron Source Neutron Scattering Instruments with an Introduction to Neutron Scattering and Scattering Instruments by : Peter Ives Hubbel
Download or read book A Preliminary Design Report for Five Advanced Neutron Source Neutron Scattering Instruments with an Introduction to Neutron Scattering and Scattering Instruments written by Peter Ives Hubbel and published by . This book was released on 1989 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Simulation of a Small-angle Neutron Scattering Instrument on a 1 MW Long Pulse Spallation Source by :
Download or read book Analysis and Simulation of a Small-angle Neutron Scattering Instrument on a 1 MW Long Pulse Spallation Source written by and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: We studied the design and performance of a small-angle neutron scattering (SANS) instrument for a proposed 1 MW, 60 Hz long pulsed spallation source at the Los Alamos Neutron Science Center (LANSCE). An analysis of the effects of source characteristics and chopper performance combined with instrument simulations using the LANSCE Monte Carlo instrument simulations package shows that the T0 chopper should be no more than 5 m from the source with the frame overlap and frame definition choppers at 5.6 and greater than 7 m, respectively. The study showed that an optimal pulse structure has an exponential decaying tail with [tau] ≈ 750 [mu]s. The Monte Carlo simulations were used to optimize the LPSS SANS, showing that an optimal length is 18 m. The simulations show that an instrument with variable length is best to match the needs of a given measurement. The performance of the optimized LPSS instrument was found to be comparable with present world standard instruments.
Book Synopsis Research Infrastructures by : Kurt Clausen
Download or read book Research Infrastructures written by Kurt Clausen and published by . This book was released on 2001 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recoge : 1.Foreword -- 2.Executive summary -- 3.European facilities for research with neutron beams -- 4.European coordination -- 5.The neutron research infrastructre from the perspective of the users (ENSA) -- 6.The future -- 7.Location and data of research infrastructures : neutron sources -- 8.Access to research infrastructures.
Book Synopsis Neutron Detectors for Scattering Applications by : Yacouba Diawara
Download or read book Neutron Detectors for Scattering Applications written by Yacouba Diawara and published by Springer Nature. This book was released on 2023-08-04 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the most common neutron detectors used in neutron scattering facilities and all of those in use at Oak Ridge National Lab. It starts describing the facilities, instruments and the critical detector parameters needed by various instruments. Then the key components of the 3He-based linear position-sensitive detectors as well as on their electronics, which require particular attention to signal processing and noise reduction, are introduced. One chapter is dedicated to the 3He alternatives where scintillators play a critical role. It also covers emerging neutron detection technologies including semiconductors, vacuum-based devices and their associated readouts, which will be required in the future for high rate and high-resolution neutron detectors. The authors explain the logic behind the choice of materials as well as the various constraints that neutron detectors must respect to be useful. Some of these constraints, such as efficiency and gamma-ray sensitivity are common to all neutron counters while others, like timing resolution, dynamic range, and peak counting rate, depend on the applications. The book guides experts, the nuclear science community, and young scholars through the physical processes and the required electronics in a way that is accessible for those not professionally involved in designing detector’s components and electronic circuits.
Book Synopsis Design of the Small Angle Neutron Scattering Instrument at the Indiana University Low Energy Neutron Source by : Nicholas B. Remmes
Download or read book Design of the Small Angle Neutron Scattering Instrument at the Indiana University Low Energy Neutron Source written by Nicholas B. Remmes and published by . This book was released on 2007 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: SANS measurements of a family of tripodal organo-silicon dendrimer molecules using the IPNS SAND and the NCNR NG3 SANS instruments are presented. Variations in the scattering curves are compared for solutions of the dendrimers at multiple concentrations in d-heptane, d-DCM, and d-toluene. Models of both the particle form factor and the structure factor are presented. The measurements suggest a distinct difference between the size and behavior of the highest generation dendrimer in two of the solvents (d-DCM and d-toluene) as compared to a third (d-heptane). Additionally, the dendrimer molecules appear to be forming short chains in solution.
Download or read book Neutron Scattering written by and published by Academic Press. This book was released on 1986-09-18 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers in some detail the application of neutron scattering to different fields of physics, materials science, chemistry, biology, the earth sciences and engineering. Its goal is to enable researchers in a particular area to identify aspects of their work in which neutron scattering techniques might contribute, conceive the important experiments to be done, assess what is required to carry them out, write a successful proposal for one of the major user facilities, and perform the experiments under the guidance of the appropriate instrument scientist. The authors of the various chapters take account of the advances in experimental techniques over the past 25 years--for example, neutron reflectivity and spin-echo spectroscopy and techniques for probing the dynamics of complex materials and biological systems. Furthermore, with the third-generation spallation sources recently constructed in the United States and Japan and in the advanced planning stage in Europe, there is an increasing interest in time-of-flight techniques and short wavelengths. Correspondingly, the improved performance of cold moderators at both reactors and spallation sources has extended the long-wavelength capabilities. Chapter authors are pre-eminent in their field Seminal experiments are presented as examples Provides guidance on how to plan, execute and analyse experiments
Book Synopsis Small-angle Neutron Scattering at Pulsed Spallation Sources by :
Download or read book Small-angle Neutron Scattering at Pulsed Spallation Sources written by and published by . This book was released on 1990 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of small-angle neutron scattering (SANS) in biological, chemical, physical, and engineering research mandates that all intense neutron sources be equipped with SANS instruments. Four existing instruments are described, and the general differences between pulsed-source and reactor-based instrument designs are discussed. The basic geometries are identical, but dynamic range is achieved by using a broad band of wavelengths (with time-of-flight analysis) rather than by moving the detector. This allows a more optimized collimation system. Data acquisition requirements at a pulsed source are more severe, requiring large, fast histogramming memories. Data reduction is also more complex, as all wave length-dependent and angle-dependent backgrounds and non-linearities must be accounted for before data can be transformed to intensity vs Q.A comparison is shown between the Los Alamos pulsed instrument and D-11 (Institute Laue-Langevin), and examples from the four major topics of the conference are shown. The general conclusion is that reactor-based instruments remain superior at very low Q or if only a narrow range of Q is required, but that the current generation of pulsed-source instruments is competitive at moderate Q and may be faster when a wide range of Q is required. In principle, a user should choose which facility to use on the basis of optimizing the experiment; in practice the tradeoffs are not severe and the choice is usually made on the basis of availability.
Book Synopsis Neutrons in Biology by : Benno P. Schoenborn
Download or read book Neutrons in Biology written by Benno P. Schoenborn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compendium presents some of the major applications of neutron scattering techniques to problems in biology. It is a record of the papers presented at the Neutrons in Biology Conference, the third in an occasional series held to highlight progress in the field and to provide a focus for future direction. The strength ofthe neutron scattering technique remains principally in the manipula tion of scattering density through hydrogen and deuterium atoms. The development ofad vanced detectors, innovative instrument and beamline components, and sophisticated data acquisition systems through the 1970s and early 1980s provided a sound foundation for the technique. With continued development, some of the exotic and expensive equipment has become affordable by the medium-sized facilities, thereby broadening the user base considerably. Despite problems with the major neutron sources in the late 1980s and early 1990s, some spectacular results have been achieved. Whilst the high and medium flux beam reac tors will continue to make a major impact in the field, the results from the first experi ments, and the planned developments on spallation neutron sources, clearly indicate that the technique has enormous potential.
Book Synopsis Introduction to the Theory of Thermal Neutron Scattering by : G. L. Squires
Download or read book Introduction to the Theory of Thermal Neutron Scattering written by G. L. Squires and published by Cambridge University Press. This book was released on 2012-03-29 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: A long-awaited reprint of the book that has established itself as the classic textbook on neutron scattering. It will be an invaluable introductory text for students taking courses on neutron scattering, as well as for researchers and those who would like to deepen their knowledge on the subject through self-study.
