[en] The ISNS-2013 focussed on the growth of neutron scattering facilities and science of novel functional materials, energy storage, batteries, soft matter etc. The scientific programme covers talks on major neutron facilities world over besides sessions on new instruments, detectors, simulations of experiments, as well as research on important topics of energy storage, functional materials, soft matter and fundamental science. Papers relevant to INIS are indexed separately

[en] In this talk, we will present an overview of the scientific program of the Structure and Dynamics of Soft Matter Group, in the Biology and Soft Matter Division of the Neutron Sciences Directorate. From the broader area of soft materials research, the group members have chosen four main areas of scientific focus including: Confinement and Low-Dimensional Systems, Structure and Dynamics of Colloids, Nanoparticle-Polymer Composites, Transport in Membranes, and New Neutron Techniques for soft matter science. We will present several examples of neutron scattering experimental studies in each of these areas highlighting the experimental and theoretical (or modeling) capabilities of the group at both HFIR and SNS. Example topics to be discussed include SANS, reflectometry, and/or quasielastic studies of membranes on patterned interfaces, dynamics and structure of soft colloidal materials (including both polymeric dendrimers and biomimetic materials), gas confinement in mesoporous structures, transport in polyelectrolyte thin films, and development of spin-echo SANS concepts. (author)

[en] Neutron total scattering data of extruded model ODS alloy samples (with 0.3 vol % Y₂O₃ doped 1) pure Fe, 2) Fe + 0.2 % Ti, 3) Fe +14% Cr, 0.2 % Ti) was collected at the NOMAD instrument of the SNS, ORNL, Oak Ridge, USA, at ambient and elevated temperatures between 600 to 1200 deg C. The high temperature data allowed identification of the alpha to Gamma phase transition of the Fe in these samples. Good fits were obtained between the experimentally observed and the calculated PDFs of the alpha and gamma structures of Fe with refined values of lattice parameters, scale factor and the thermal parameters. Preliminary results of our study of the temperature evolution of the local arrangements of atoms in these samples will be presented. (author)

[en] This talk will describe recent developments at the Spallation Neutron Source (SNS) to create a computational environment (both hardware and software) that will enable the integration of materials simulation techniques (molecular dynamics, density functional theory etc.) with neutron scattering data analysis, not just post experiment but also in near real time during the experimental data acquisition. This work involves two coordinated projects. Firstly the ADARA (Accelerating Data Acquisition, Reduction and Analysis) project to stream neutron data from the SNS beam lines to high performance computing resources and secondly the recently established Center for Accelerating Materials Modeling (CAMM) at ORNL to work on the integration and deployment of materials simulation codes for neutron scattering data analysis. As well as describing the current status of these projects the talk will also outline the future work to 'close the loop' and allow feedback from materials simulations and models to the experiments. (author)

[en] BARC operates a national facility for neutron beam research at the Dhruva reactor that comprises twelve spectrometers in the reactor hall and in the Neutron-Guide laboratory. The national facility is regularly utilized for research in physics, material science, chemistry and biology, in collaboration with users from various universities and other academic institutions. Several projects have been active under the UGC-DAE-CSR collaboration program besides those funded by DAE-BRNS and other agencies. Neutron Schools have been regularly organized to provide training along with hand-on experiments at the national facility; the 15^th School was held just prior to the present symposium. The current research is focused on multi-functional materials, energy materials, and soft matter. This includes surface and interface characterization in magnetic multilayers, and studies of bulk materials such as steel, ceramic and cement. In this talk we will discuss the national facility and the current challenges while several new international facilities are coming up. (author)

[en] Neutrons easily penetrate all kinds of material. They tell us in a unique way where the atoms are, how they move and reveal the origins of magnetism. Neutrons also perform nuclear reactions and transmute elements. Therefore neutrons are an outstanding instrument to address and to give eventually answers to the grand challenges of modern society as there are: energy storage, transport, conversion, health, mobility, nanotechnology, information technology, sustainability and more. With the neutron source Heinz Maier-Leibnitz (FRM II) the Technische Universität München provides intense neutron beams ranging from ultra-cold to fast neutrons for the purposes of fundamental sciences, material sciences, engineering and medicine. After a short introduction how to provide brilliant neutron beams over a huge range of wavelength, selected examples will be given of how research at neutron beams addresses the above mentioned challenges. (author)

[en] Neutron radiography techniques based on Gd, Dy and In metallic foils and X-ray film have been used at this centre since early seventies for various NDT and R and D work in nuclear, defence and aerospace industries. In recent years use of photostimulated luminescence based phosphor imaging plate has been introduced in our work. This has enabled to achieve higher sensitivities and dynamic ranges of recording radiographs with acceptable spatial resolution. It also provides digital image information which is more convenient for quantitative evaluations. Neutron image plates have been used in variety of radiography techniques such as conventional neutron radiography (NR), neutron induced beta radiography (NIBR), hydrogen sensitive epithermal neutron radiography (HYSEN) and for neutron powder diffractometry using Apsara, CIRUS and Dhruva reactors as neutron sources. Recently the image plates have also been used for characterization of thermalized neutron beam from a plasma focus neutron source and recording neutron radiographs. Prior to the utilization image plates have been characterised for their performance. Details of the measurements and applications will be presented. (author)

[en] Polarized Neutron Reflectometry (PNR) is an excellent tool to probe magnetic depth profile in multilayer thin film samples. In case of multilayer films with alternating magnetic and non-magnetic layers, PNR can provide magnetic depth profile at the interfaces with better than nanometer resolution. Using PNR and Xray Reflectometry (XRR) together one can obtain chemical composition and magnetic structure, viz. magnetic moment density at interfaces in multilayer films. We have used these two techniques to obtain kinetics of alloy formation at the interfaces and the magnetic nature of the alloy at the interfaces in several important thin films with magnetic/non-magnetic bilayers. These include Ni/Ti, Ni/Al and Si/Ni pairs. Results obtained from these studies will be presented in this talk. (author)

[en] The Swiss Spallation Neutron Source SINQ is a modern user facility for neutron diffraction, neutron scattering and imaging experiments. It started user service in 1998. Presently, 14 instruments are open for outside users and one is at the end of the commissioning phase, two instruments are reserved for testing new components and crystals quality, one is operated by industry. Together with the excellent sample environment ranging from high pressure, high field, very low and very high temperatures, computer controlled (low-temperature) sample changer to specialties such as insitu measurements under hydrogen, and the present flux (4 times higher than in 1998 as a consequence of increased proton flux as well as upgraded target). An upgrade program for the instrumentation as well as the guide system has been initiated to strengthen SINQ's competence in the next decade. We will present the present status of the facility; plans for the future upgrade program as well as highlights from the user service of the last few years. (author)

[en] With the political agreement in early summer 2009, to choose a site for the ESS, 17 European countries have joined together in a partnership to embark on a 3-year Pre-Construction Phase, including a full Design Update and Preparation to Build activities, prior to formally starting construction on the site in Lund in southern Scandinavia in 2013. The ESS will be a 5MW long-pulse spallation neutron source and as such it will be a unique and uniquely powerful facility offering new opportunities for materials research using slow neutrons. Compared to the user's experience today the ESS aims to offer measuring capabilities two orders of magnitude better than similar facilities today. Our accelerator will be substantially superconducting using niobium for the cavities. Such metals suck up hydrogen from the environment and it is interesting that today the absorption of hydrogen by niobium is very relevant in accelerator component technology. Recent work on niobium cavities fabricated with ingot niobium carried out through a Brazil - India - Jefferson lab collaboration has indicated major advances in performance of such cavities. After proper verification such an advance could well prove advantageous for the performance and reliability of ESS