Neutron-deuteron Breakup and Quasielastic Scattering


Book Description

Quasielastic scattering and deuteron breakup in the 200 MeV region is studied by impinging a pulsed neutron beam on a deuterium target at the Weapons Neutron Research facility at the Los Alamos Neutron Science Center. The scattered neutrons from the d(n, np)n reaction are detected by a wall of neutron time-of-flight scintillators, and scattered protons are detected by two scintillators and a wire chamber. This setup allows for measurement of the incident neutron energy, scattered neutron energy, and scattered proton energy, as well as the scattering angle and position of the scattered neutron. The results of the experiment are compared with a Monte Carlo simulation of neutron-proton scattering, to observe the differences between two-body and three-body quasielastic collisions. The four-dimensional differential cross section for the d(n, np)n reaction is determined from the data.




A Practical Guide to Quasi-elastic Neutron Scattering


Book Description

This title provides an accessible introduction to quasi-elastic neutron scattering (QENS), highlighting all key conceptual, theoretical and data interpretation aspects of the method.




Principles of Neutron Scattering from Condensed Matter


Book Description

Neutron scattering is arguably the most powerful technique available for looking inside materials and seeing what the atoms are doing. This textbook provides a comprehensive and up-to-date account of the many different ways neutrons are being used to investigate the behaviour of atoms and molecules in bulk matter. It is written in a pedagogical style, and includes many examples and exercises. Every year, thousands of experiments are performed at neutron scattering facilities around the world, exploring phenomena in physics, chemistry, materials science, as well as in interdisciplinary areas such as biology, materials engineering, and cultural heritage. This book fulfils a need for a modern and pedagogical treatment of the principles behind the various different neutron techniques, in order to provide scientists with the essential formal tools to design their experiments and interpret the results. The book will be of particular interest to researchers using neutrons to study the atomic-scale structure and dynamics in crystalline solids, simple liquids and molecular fluids by diffraction techniques, including small-angle scattering and reflectometry, and by spectroscopic methods, ranging from conventional techniques for inelastic and quasielastic scattering to neutron spin-echo and Compton scattering. A comprehensive treatment of magnetic neutron scattering is given, including the many and diverse applications of polarized neutrons.










Quasielastic Neutron Scattering: Future Prospects On High-resolution Inelastic Neutron Scattering - Proceedings Of The Workshop Qens’93


Book Description

The aim of the workshop is to review the recent developments in both quasielastic and high-resolution inelastic neutron scattering. A special emphasis will be put on the new possibilities which will open up in medium term future with the commissioning of large-scale installations, as well as on new perspectives based on recent progress in the microscopic modeling of phenomena amendable to study by inelastic neutron scattering.