Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The MCLIB Library: Monte Carlo Simulation of Neutron Scattering Instruments
Monte Carlo Simulation of Neutron Scattering Instruments
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
A code package consisting of the Monte Carlo Library MCLIB, the executing code MC{_}RUN, the web application MC{_}Web, and various ancillary codes is proposed as an open standard for simulation of neutron scattering instruments. The architecture of the package includes structures to define surfaces, regions, and optical elements contained in regions. A particle is defined by its vector position and velocity, its time of flight, its mass and charge, and a polarization vector. The MC{_}RUN code handles neutron transport and bookkeeping, while the action on the neutron within any region is computed using algorithms that may be deterministic, probabilistic, or a combination. Complete versatility is possible because the existing library may be supplemented by any procedures a user is able to code. Some examples are shown.
The Neutron Instrument Monte Carlo Library MCLIB
Author: Publisher:
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Category :
Languages : en
Pages : 17
Book Description
A brief review is given of the developments since the ICANS-XIII meeting made in the neutron instrument design codes using the Monte Carlo library MCLIB. Much of the effort has been to assure that the library and the executing code MC{_}RUN connect efficiently with the World Wide Web application MC-WEB as part of the Los Alamos Neutron Instrument Simulation Package (NISP). Since one of the most important features of MCLIB is its open structure and capability to incorporate any possible neutron transport or scattering algorithm, this document describes the current procedure that would be used by an outside user to add a feature to MCLIB. Details of the calling sequence of the core subroutine OPERATE are discussed, and questions of style are considered and additional guidelines given. Suggestions for standardization are solicited, as well as code for new algorithms.
Materials Research Using Cold Neutrons At Pulsed Neutron Sources
Author: Chun Keung LoongPublisher: World Scientific
ISBN: 9814544035
Category : Science
Languages : en
Pages : 245
Book Description
The applications of the use of cold neutrons for condensed matter research at accelerator-based spallation sources are less well-known than that of the use of cold neutrons at reactor sources. This book represents the outcome of the first international workshop on “Materials Research Using Cold Neutrons at Pulsed Sources”. It consists of overviews of the present status and future trends in research opportunities using cold neutrons, as well as topical papers focusing on the areas of small-angle neutron scattering, reflectivity and spectroscopic studies of a rich variety of materials, from adsorbed molecules to thin films to coal to metallic glasses. These papers will benefit researchers who are interested in the characterization of microscopic properties of advanced materials.
MLNSC Instrument Design and Simulation Package, Task Order 57 (modified). Final Report, September 30, 1997
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The objectives of this task as described in Statement of Work have been met and the documents required as Deliverables have been prepared and submitted to the requester. Specifically, a document titled ''The MCLIB Library: Monte Carlo Simulation of Neutron Scattering Instruments, '' revised September 23, 1997, includes documentation of new standards, code revisions and additions, and some improved efficiency due to improved optimization strategies. The procedures for user implementation of new optical devices, and information on using the package and reading and viewing the output have also been included. Second, a new document entitled ''MCLIB Element Definitions and Help'' was written and revised through the duration of the task, to supply the needed input to group CIC-15 for the purpose of integrating the MCLIB package with a web-based user interface. Finally, an application of the package was presented and a (successful) demonstration of the new user interface was given at a workshop at Argonne National Laboratory, August 24--26, 1997, as described in the modification to the Statement of Work.
Modern Developments in X-Ray and Neutron Optics
Author: Alexei ErkoPublisher: Springer Science & Business Media
ISBN: 3540745602
Category : Technology & Engineering
Languages : en
Pages : 540
Book Description
This volume describes modern developments in reflective, refractive and diffractive optics for short wavelength radiation. It also covers recent theoretical approaches to modelling and ray-tracing the x-ray and neutron optical systems. It is based on the joint research activities of specialists in x-ray and neutron optics, working together under the framework of the European Programme for Cooperation in Science and Technology (COST, Action P7) in the period 2002-2006.
Report on the Workshop on Monte Carlo Simulation of Neutron Scattering Instruments
Author: Neutrons and Numerical Methods - N2M
Author: M.R. JohnsonPublisher: American Institute of Physics
ISBN:
Category : Mathematics
Languages : en
Pages : 256
Book Description
The proceedings of the Workshop on Neutrons and Numerical Methods brings together recent research which combines neutron scattering experiments and numerical modeling of interatomic forces. Since the neutron probes directly the neutron motion, a quantitative comparison of the experimental and numerical results is made. These numerical simulations give a much deeper insight into the structure and dynamics being studied. Furthermore, neutron data constitute a rigorous test of the ever-increasing number of numerical methods available, many of which are presented here. The data enable the simulation method best suited to the system under study to be selected.
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