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Book Development of the Activation Analysis Calculational Methodology for the Spallation Neutron Source SNS

Download or read book Development of the Activation Analysis Calculational Methodology for the Spallation Neutron Source SNS written by and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the design of the proposed Spallation Neutron Source (SNS), activation analyses are required to determine the radioactive waste streams, on-line material processing requirements remote handling/maintenance requirements, potential site contamination and background radiation levels. For the conceptual design of the SNS, the activation analyses were carried out using the high-energy transport code HETC96 coupled with MCNP to generate the required nuclide production rates for the ORIHET95 isotope generation code. ORIHET95 utilizes a matrix-exponential method to study the buildup and decay of activities for any system for which the nuclide production rates are known. In this paper, details of the developed methodology adopted for the activation analyses in the conceptual design of the SNS are presented along with some typical results of the analyses.

Book Construction and Operation of the Spallation Neutron Source TN NY IL NM

Download or read book Construction and Operation of the Spallation Neutron Source TN NY IL NM written by and published by . This book was released on 1999 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Development of Computational Tools for Halo Analysis and Study of Halo Growth in the Spallation Neutron Source Linear Accelerator

Download or read book The Development of Computational Tools for Halo Analysis and Study of Halo Growth in the Spallation Neutron Source Linear Accelerator written by and published by . This book was released on 2005 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Spallation Neutron Source (SNS), being built at the Oak Ridge National Laboratory, utilizes a high intensity particle accelerator for neutron production. One of the challenges in SNS, as with all high intensity accelerators, is to minimize the amount of beam lost. High beam losses can cause costly damage and lead to residual activation of accelerator components, which complicates routine maintenance. One of the key components in beam loss at SNS is the development and propagation of beam halo. Halo particles are those driven to large amplitudes by space charge forces between the beam particles or by mismatch between the beam and the accelerator optics. The research presented seeks to develop computational tools to quantify the halo in a beam by analyzing beam profiles and identifying the halo using the Gaussian area ratio and kurtosis methods. Simulations of various configurations using three types of initial simulated distributions, along with an analysis of their phase space and rms properties, provides insight into the development of halo in the SNS linear accelerator. Finally, comparisons with machine beam profile data, taken at the same conditions as that of the simulated data, shows how accurately the simulations model the beam and its halo development and provides a better understanding of the best machine configuration with which to minimize beam halo and losses. Results of simulated data are independent of the initial distribution for strongly mismatched cases; however, even relatively well matched cases generate some halo. Core analysis reveals an increase in beam size as halo decreases for simulated cases. Experimental comparison with simulation results shows poor correlation between halo plots but moderate agreement in profile plots.

Book Computational Benchmark Calculations Relevant to the Neutronic Design of the Spallation Neutron Source SNS

Download or read book Computational Benchmark Calculations Relevant to the Neutronic Design of the Spallation Neutron Source SNS written by and published by . This book was released on 1999 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Spallation Neutron Source (SNS) will provide an intense source of low-energy neutrons for experimental use. The low-energy neutrons are produced by the interaction of a high-energy (1.0 GeV) proton beam on a mercury (Hg) target and slowed down in liquid hydrogen or light water moderators. Computer codes and computational techniques are being benchmarked against relevant experimental data to validate and verify the tools being used to predict the performance of the SNS. The LAHET Code System (LCS), which includes LAHET, HTAPE ad HMCNP (a modified version of MCNP version 3b), have been applied to the analysis of experiments that were conducted in the Alternating Gradient Synchrotron (AGS) facility at Brookhaven National Laboratory (BNL). In the AGS experiments, foils of various materials were placed around a mercury-filled stainless steel cylinder, which was bombarded with protons at 1.6 GeV. Neutrons created in the mercury target, activated the foils. Activities of the relevant isotopes were accurately measured and compared with calculated predictions. Measurements at BNL were provided in part by collaborating scientists from JAERI as part of the AGS Spallation Target Experiment (ASTE) collaboration. To date, calculations have shown good agreement with measurements.

Book Advanced Monte Carlo for Radiation Physics Particle Transport Simulation and Applications

Download or read book Advanced Monte Carlo for Radiation Physics Particle Transport Simulation and Applications written by Andreas Kling and published by Springer Science & Business Media. This book was released on 2014-02-22 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the state of the art of Monte Carlo methods in radiation physics and particle transport simulation and applications. Special attention is paid to algorithm development for modeling, and the analysis of experiments and measurements in a variety of fields.

Book Development of an Integrated Approach to Routine Automation of Neutron Activation Analysis

Download or read book Development of an Integrated Approach to Routine Automation of Neutron Activation Analysis written by INTERNATIONAL ATOMIC ENERGY AGENCY. and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Handbook of Neutron Activation Analysis

Download or read book Handbook of Neutron Activation Analysis written by Susan J. Parry and published by . This book was released on 2003 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Activation Analysis with Neutron Generators

Download or read book Activation Analysis with Neutron Generators written by Sam S. Nargolwalla and published by John Wiley & Sons. This book was released on 1973 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book 107 1 Hearings Energy and Water Development Appropriations for 2002 Part 4 2001

Download or read book 107 1 Hearings Energy and Water Development Appropriations for 2002 Part 4 2001 written by and published by . This book was released on 2001 with total page 1476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Neutron activation Analysis

Download or read book Neutron activation Analysis written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The general theory, methodology, and types of neutron activation analysis are discussed. Reactor-thermal neutrons are by far the most widely used in activation analysis, and observed limits of detection for the various elements are tabulated, and examples of applications of this technique to the purely analytical and geochemical fields are quoted. Generator-fast neutrons, which are suited to the determination of macro amounts of the major elements encountered in geology and the isotopic neutron source, are shown to be suitable for in situ irradiations - either in the field or in industrial plants where continuous monitoring is a requirement.

Book Activation Analysis for Fusion Reactor Neutron Source Strength Measurement

Download or read book Activation Analysis for Fusion Reactor Neutron Source Strength Measurement written by Jeffrey A. Isaacson and published by . This book was released on 1984 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: