Download or read book Experiments with the Pulsed Neutron Technique written by Alan O. Sandborg and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Pulsed Neutron Technique Applied to Two region Subcritical Lattice Experiments written by Graeme Laurie Simpson and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Experiments with a Pulsed Neutron Source for an Unreflected Solution Reactor Up to 50 Shutdown written by Daniel Fieno and published by . This book was released on 1969 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsed neutron source studies to determine shutdown reactivities of unreflected solution reactor.

Download or read book THE INTERPRETATION OF PULSED NEUTRON EXPERIMENTS written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Neutron Experiments in Graphite written by H. F. McFarlane and published by . This book was released on 1971 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed pulsed neutron measurements have been performed in graphite assemblies ranging in size from 30.48 cm x 38.10 cm x 38.10 cm to 91.44 cm x 66.67 cm x 66.67 cm. Results of the measurement have been compared to a modeled theoretical computation. In the first set of experiments, we measured the effective decay constant of the neutron population in ten graphite stacks as a function of time after the source burst. We found the decay to be non-exponential in the six smallest assemblies, while in three larger assemblies the decay was exponential over a significant portion of the total measuring interval. The decay in the largest stack was exponential over the entire ten millisecond measuring interval. The non-exponential decay mode occurred when the effective decay constant exceeded 1600 sec^( -1). In a second set of experiments, we measured the spatial dependence of the neutron population in four graphite stacks as a function of time after the source pulse. By doing an harmonic analysis of the spatial shape of the neutron distribution, we were able to compute the effective decay constants of the first two spatial modes. In addition, we were able to compute the time dependent effective wave number of neutron distribution in the stacks. Finally, we used a Laplace transform technique and a simple modeled scattering kernel to solve a diffusion equation for the time and energy dependence of the neutron distribution in the graphite stacks. Comparison of these theoretical results with the results of the first set of experiments indicated that more exact theoretical analysis would be required to adequately describe the experiments. The implications of our experimental results for the theory of pulsed neutron experiments in polycrystalline media are discussed in the last chapter.

Download or read book The Theory of Pulsed Neutron Experiments in Fast Multiplying Systems written by James Calvin Brittingham and published by . This book was released on 1975 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Pulsed Neutron Application to Power Reactor Start up Procedures Quarterly Progress Report written by and published by . This book was released on 1962-07 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this work is to develop a technique to use pulsed neutron sources to measure the shutdown of large, thermal power reactors. A theoretical investigation to identify an experimental observable is conducted" - Introduction.

Download or read book Experimental Techniques in Nuclear Physics written by Dorin N. Poenaru and published by Walter de Gruyter. This book was released on 2011-09-12 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Method of Analysis to Determine Subcritical Reactivity from the Pulsed Neutron Experiment written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Re entrant Hole Effects in Pulsed Neutron Experiments written by Frank McGirt and published by . This book was released on 1968 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A review of pulsed neutron experiments on non multiplying media written by Karl Heinz Beckurts and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Neutron Techniques written by George Robert Keepin and published by . This book was released on 1958 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A New Interpretation of Pulsed Neutron Experiments in a Reflected Reactor written by Alan Edward Waltar and published by . This book was released on 1966 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed neutron Techniques for Condensed matter Research written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsed spallation sources are reviewed in a historical content as the latest generation of neutron sources in a line that started with the discovery of the neutron in 1932 and proceeded through research-reactor and accelerator-driven sources. The characteristics of the spallation sources are discussed in relation to their capabilities for structural and dynamical studies of condensed matter with slow neutrons and radiation effects research with fast neutrons. The new scientific opportunities opened up in these fields by the unique features of the sources are briefly reviewed, with some examples of completed work and experiments being planned.

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.

Download or read book Experimental Neutron Scattering written by B. T. M. Willis and published by Oxford University Press. This book was released on 2017-03-23 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first systematic experiments in neutron scattering were carried out in the late 1940s using fission reactors built for the nuclear power programme. Crystallographers were amongst the first to exploit the new technique, but they were soon followed by condensed matter physicists and chemists. Engineers and biologists are the most recent recruits to the club of neutron users. The aim of the book is to provide a broad survey of the experimental activities of all these users. There are many specialist monographs describing particular examples of the application of neutron scattering: fifteen of such monographs have been published already in the Oxford University Press series edited by S. Lovesey and E. Mitchell. However this book will appeal to newcomers to the field of neutron scattering, who may be intimidated by the bewildering array of instruments at central facilities (such as the Institut Laue Langevin in France, the ISIS Laboratory in the UK, or the PSI Laboratory in Switzerland), and who may be uncertain as to which instrument to use.

Download or read book Pulsed Neutron Research written by and published by . This book was released on 1965 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: