Download or read book Shielding Benchmark Computational Analysis written by and published by . This book was released on 2000 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past several decades, nuclear science has relied on experimental research to verify and validate information about shielding nuclear radiation for a variety of applications. These benchmarks are compared with results from computer code models and are useful for the development of more accurate cross-section libraries, computer code development of radiation transport modeling, and building accurate tests for miniature shielding mockups of new nuclear facilities. When documenting measurements, one must describe many parts of the experimental results to allow a complete computational analysis. Both old and new benchmark experiments, by any definition, must provide a sound basis for modeling more complex geometries required for quality assurance and cost savings in nuclear project development. Benchmarks may involve one or many materials and thicknesses, types of sources, and measurement techniques. In this paper the benchmark experiments of varying complexity are chosen to study the transport properties of some popular materials and thicknesses. These were analyzed using three-dimensional (3-D) models and continuous energy libraries of MCNP4B2, a Monte Carlo code developed at Los Alamos National Laboratory, New Mexico. A shielding benchmark library provided the experimental data and allowed a wide range of choices for source, geometry, and measurement data. The experimental data had often been used in previous analyses by reputable groups such as the Cross Section Evaluation Working Group (CSEWG) and the Organization for Economic Cooperation and Development/Nuclear Energy Agency Nuclear Science Committee (OECD/NEANSC).
Download or read book The Current Status of the Shielding Integral Benchmark Archive and Database SINBAD This Paper Has Been Authored by UT Battelle LLC Under Contract DE AC05 00OR22725 with the U S Dept of Energy The United States Government Retains and the Publisher by Accepting the Article for Publication Acknowledges that the United States Government Retains a Non exclusive Paid up Irrevocable World wide License to Publish Or Reproduce the Published Form of this Manuscript Or Allow Others to Do So for United States Government Purposes written by B. L. Kirk and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shielding integral benchmark archive and database (SINBAD) collection of experiments descriptions was initiated in the early 1990s. SINBAD is an international collaboration between the Organization for Economic Cooperation and Development's Nuclear Energy Agency Data Bank (OECD/NEADB) and the Radiation Safety Information Computational Center (RSICC) at Oak Ridge National Laboratory (ORNL). SINBAD was designed to compile experiments and corresponding computational models with the goal of preserving institutional knowledge and expertise that need to be handed down to future scientists. SINBAD can serve as a learning tool for university students and scientists who need to design experiments or gain expertise in modeling and simulation. The SINBAD database is currently divided into three categories--fission, fusion, and accelerator experiments. Many experiments are described and analyzed using deterministic or stochastic (Monte Carlo) radiation transport software. The nuclear cross sections also play an important role as they are necessary in performing computational analysis.
Download or read book Shielding Experimental Benchmark Storage Retrieval and Display System 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 complete description of an integral shielding benchmark experiment includes the radiation source, materials, physical geometry, and measurement data. This information is not usually contained in a single document, but must be gathered from several sources, including personal contact with the experimentalists. A comprehensive database of the experimental details is extremely useful and cost-effective in present day computations. Further, experimental data are vulnerable to being lost or destroyed as a result of facility closures, retirement of experimental personnel, and ignorance. A standard set of experiments, used globally, establishes a framework to validate and verify models in computer codes and guarantee comparative analyses between different computational systems. SINBAD is a database that was conceived in 1992 to store, retrieve, and display the measurements from international experiments for the past 50 years in nuclear shielding. Based at Oak Ridge National Laboratory's Radiation Safety Information and Computational Center (RSICC) SINBAD has a collection of integral benchmark experiments from around the world. SINBAD is shared with the Office of Economic and Cooperative Development/Nuclear Energy Agency Data Bank, which provides contributions from Europe, Russia, and Japan.
Download or read book Shielding Benchmark Problems written by A. E. Profio and published by . This book was released on 1969 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Methods in Reactor Shielding written by James Wood and published by Elsevier. This book was released on 2013-10-22 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Methods in Reactor Shielding deals with the mathematical processes involved in how to effectively control the dangerous effect of nuclear radiation. Reactor shielding is considered an important aspect in the operation of reactor systems to ensure the safety of personnel and others that can be directly or indirectly affected. Composed of seven chapters, the book discusses ionizing radiation and how it aids in the control and containment of radioactive substances that are considered harmful to all living things. The text also outlines the necessary radiation quantities and units that are needed for a systemic control of shielding and presents an examination of the main sources of nuclear radiation. A discussion of the gamma photon cross sections and an introduction to BMIX, a computer program used in illustrating a technique in identifying the gamma ray build-up factor for a reactor shield, are added. The selection also discusses various mathematical representations and areas of shielding theory that are being used in radiation shielding. The book is of great value to those involved in the development and implementation of systems to minimize and control the dangerous and lethal effect of radiation.
Download or read book Shielding Computer Program 11 0 Reactor Shield Analysis written by K.B. Hanchon and published by . This book was released on 1958 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Analysis of Radiation Shielding written by R. E. Fortney and published by . This book was released on 1964 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shielding Analysis Methods Available in the Scale Computational System written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational tools have been included in the SCALE system to allow shielding analysis to be performed using both discrete-ordinates and Monte Carlo techniques. One-dimensional discrete ordinates analyses are performed with the XSDRNPM-S module, and point dose rates outside the shield are calculated with the XSDOSE module. Multidimensional analyses are performed with the MORSE-SGC/S Monte Carlo module. This paper will review the above modules and the four Shielding Analysis Sequences (SAS) developed for the SCALE system. 7 refs., 8 figs.
Download or read book Shielding Computer Programs 01 0 02 0 and 03 0 written by M. A. Capo and published by . This book was released on 1959 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Topical Meeting on Radiation Protection for Our National Priorities written by and published by . This book was released on 2000 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integral Transport Methods for Benchmark Shielding Analysis written by Robert Wei-Gun Tsai and published by . This book was released on 1975 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Analysis of Radiation Shielding written by R. E. Fortney and published by . This book was released on 1964 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to develop mathematical methods to assess the biological hazards of space radiation and to program these methods for the IBM 7090 using FORTRAN language. A semianalytical approach was utilized to write machine programs for geocentric trajectories and a model astronaut inside a space vehicle. The trajectory program is used to solve the two body problem with pertubations to correct for the oblateness of the earth. The earth's magnetosphere is the space of principle interest for lunar missions, therefore lunar impact and return trajectories are considered to be two body geocentric orbits. An astronaut's head and torso are represented by two right elliptical cylinders. This model is placed inside a mathematically described space vehicle with known thicknesses in designated areas. An existent mahine program was utilized to define the radiative environment in McIlwain (B, L) coordinates and supplemental computer programs were used to determine radiation doses resulting from electron and proton environments. Results from the CARS program are obtained with a small amount of maching time. For example, one tenth (.1) of an hour was required to determine the radiation dose due to two spectra (electrons and protons) at ten points in the model astronaut within the APOLLO Command Module (CM) for a given orbital mission. (Author).
Download or read book Shielding Aspects of Accelerators Targets and Irradiation Facilities SATIF 6 written by NEA Staff and published by OECD Publishing. This book was released on 2004 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle accelerators are having an increasingly important impact on research, technology and lifestyle. Today they cover a wide range of applications including material science and medical applications. In recent years, requirements from new technological and research applications have emerged and the number of accelerator facilities has significantly increased. Their parameters (such as the beam energy, beam currents and intensities, targets composition, etc.) vary widely giving rise to new radiation shielding aspects and problems. The main objectives of the SATIF Meetings are to: promote the exchange of information among experts in the field of accelerator shielding and related topics; identify areas where international co-operation can be fruitful; and carry on a program of work in order to achieve progress in specific priority areas.
Download or read book NBS Special Publication written by and published by . This book was released on 1975 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Benchmark Shielding Calculations for the NEACRP Nuclear Energy Agency Committee on Reactor Physics Working Group on Shielding Assessment of Transportation Packages written by and published by . This book was released on 1990 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1985, the Nuclear Energy Agency-Committee on Reactor Physics (NEACRP) established a working group on shielding assessment of transportation packages. Following the initial distribution of a set of six problems, discussions were held at the Organization for Economic Cooperation and Development (OECD) Headquarters in Paris, France, in June/July 1986, May 1988, and February/March 1990. The US contribution to the working group is documented in this report. The results from this effort permit the evaluation of a number of approximations and effects that must be considered in a typical shielding analysis of a transportation cask. Among the effects reported here are the performance of multiple cross-section sets, the comparison of several source generation codes, and multidimensional versus one-dimensional (1-D) analyses. 18 refs., 16 figs., 33 tabs.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-12 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Conference on Radiation Shielding Protection written by and published by Allied Publishers. This book was released on 1996 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
