Neutron Tomography and X-ray Tomography as Tools for the Morphological Investigation of Non-mammalian Synapsids
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Michael Laaß, Burkhard Schillinger, Ingmar Werneburg As having evolved on the stem line of mammals, the taxonomy and phylogeny of therapsids (Synapsida) are of special interest with respect to early mammalian evolution. Due to the fact that in most cases soft tissue of fossil vertebrates is not preserved, species can only be distinguished by diagnosis of morphological features of the skeleton. Moreover, investigations of vertebrate fossils are often obstructed, because internal cranial anatomy is usually hidden and parts of the fossils may be embedd...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Neutron Microtomography of MgB2 Superconducting Multifilament Wire
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Pavel Trtik, Christian Scheuerlein, Patrick Alknes, Michael Meyer, Florian Schmid, Eberhard Lehmann Neutron imaging of sub-10-micrometres spatial resolution has been recently achieved in 2D mode within the framework of the Neutron Microscope project at the Paul Scherrer Institut. Here we report on the development of the PSI Neutron Microscope instrument and the results of the first microtomographic imaging experiment of multifilament superconducting MgB2 wire. The sample of MgB2 superconducting 37 multifilaments embedded in copper-nickel matrix wa...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Pulsed Neutron Imaging for Non-destructive Testing using Simulated Nuclear Fuel Samples
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Daisuke Ito, Tadafumi Sano, Jun-ichi Hori, Yoshiyuki Takahashi, Hiroyuki Hasemi, Takashi Kamiyama, Ken Nakajima An integrated assessment method for a nuclear fuel with high decay heat and high radioactivity is required to establish fast reactor system with Trans-Uranium (TRU) fuel containing minor actinides. In addition, a Pu quantitation method with rapidity and accuracy is also necessary in a viewpoint of nuclear security. For these demands, a quantitative evaluation technique for nuclei concentration, thermal property and physical information ...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Conversion from Film to Image Plates for Transfer Method Neutron Radiography of Nuclear Fuel
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Aaron E. Craft, Glen C. Papaioannou, David L. Chichester, Walter J. Williams This paper summarizes efforts to characterize and qualify a computed radiography (CR) system for neutron radiography of irradiated nuclear fuel at Idaho National Laboratory (INL). INL has multiple programs that are actively developing, testing, and evaluating new nuclear fuels. Irradiated fuel experiments are subjected to a number of sequential post-irradiation examination techniques that provide insight into the overall behavior and performance of the fuel. One of the firs...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Applications of Neutron Radiography for the Nuclear Power Industry
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Aaron E. Craft, John P. Barton The World Conference on Neutron Radiography (WCNR) and International Topical Meeting on Neutron Radiography (ITMNR) series have been running over 35 years. The most recent event, ITMNR-8, focused on industrial applications and was the first time this series was hosted in China. In China, more than twenty new nuclear power plants are under construction and plans have been announced to increase the nuclear capacity by a factor of three within fifteen years. There are additional prospects in many other nations. Neutron test...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
A Feasibility Study on Reactor Based Fission Neutron Radiography of 200-l Waste Packages
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): T. Bücherl, O. Kalthoff, Ch. Lierse von Gostomski This feasibility study investigates the applicability of fission neutrons for the non-destructive characterization of radioactive waste packages by means of neutron radiography. Based on a number of mock-up drums of different non-radioactive matrices, but being typical for radioactive waste generated in Europe, radiography measurements at the NECTAR and the ITS facility using fission neutrons and 60Co-gamma-rays, respectively, are performed. The resulting radiographs are compared and qualitatively as...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Visualization of Solidification Process in Lead-bismuth Eutectic
In this study, the heating experiments were performed using a rectangular test section and LBE phase change process was visualized by the energy-resolved pulsed neutron imaging at BL22 RADEN facility in J-PARC and the solid/liquid interface was identified from the radiograph and Bragg edge information. The transient location of the interface was compared with measured temperature profiles and it would be useful to evaluate the LBE thermal properties. (Source: Physics Procedia)
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Microstructural Information Mapping of a Plastic-deformed α-iron Plate during Tensile Tests using Pulsed Neutron Transmission
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Takashi Kamiyama, Kenji Iwase, Hirotaka Sato, Stefanus Harjo, Takayoshi Ito, Shin-ichi Takata, Kazuya Aizawa, Yoshiaki Kiyanagi The spatial-dependent lattice spacing and microstructure of an α-iron plate with two notches was measured during tensile tests using a pulsed neutron transmission method to ascertain changes depending on the load. Changes in microstructural parameters such as macrostrain, microstrain, crystallite size and texture are interesting during the transition from the elastic to plastic deformation region, especially over a rel...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Time-of-flight Neutron Transmission Imaging of Martensite Transformation in Bent Plates of a Fe-25Ni-0.4C Alloy
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Y.H. Su, K. Oikawa, T. Shinohara, T. Kai, K. Hiroi, S. Harjo, T. Kawasaki, W. Gong, S.Y. Zhang, J.D. Parker, H. Hayashida, H. Sato, Y. Kiyanagi, Y. Tomota The influences of bending deformation and subsequent subzero treatment on the martensite transformation behaviors in a metastable austenitic alloy Fe−25wt.% Ni−0.4wt.% C were investigated by the time-of-flight (TOF) neutron Bragg-edge transmission (BET) imaging method. Two-dimensional (2D) maps of martensite phase volume fractions and texture variations due to residual stress and low...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
A Comparative Study of the Crystallite Size and the Dislocation Density of Bent Steel Plates using Bragg-edge Transmission Imaging, TOF Neutron Diffraction and EBSD
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): K. Oikawa, Y.H. Su, Y. Tomota, T. Kawasaki, T. Shinohara, T. Kai, K. Hiroi, S.Y. Zhang, J.D. Parker, H. Sato, Y. Kiyanagi Line broadening analysis was performed on the time-of-flight neutron diffraction data for the plastically bent plates of a ferritic steel and a duplex stainless steel. A Rietveld analysis program, Z-Rietveld ver. 1.0 was used to fit the anisotropically broadened patterns where the increase in Lorentzian full width at half maximum (FWHM) and the Gaussian FWHM involves information of the crystallite size and the dislocation ...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Structural Change of Carbon Anode in a Lithium-ion Battery Product Associated with Charging Process Observed by Neutron Transmission Bragg-edge Imaging
In this study, we analyzed the variation of the graphite anode structure with changes in the battery charge level. The experiments were carried out using the compact neutron source at the Hokkaido University neutron source facility (HUNS). To eliminate the effect of scattered neutron contamination, we first determined the distance between the sample and detector required to reduce this effect to under 1%. Using this separation, the charge level dependence of the anode structure was measured. The graphite {002} Bragg-edge could be recognized on the neutron transmission spectra. The Bragg-edge was shifted and broadened with ...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
PEM Water Electrolysis: Preliminary Investigations using Neutron Radiography
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Frikkie de Beer, Jan-Hendrik van der Merwe, Dmitri Bessarabov The quasi-dynamic water distribution and performance of a proton exchange membrane (PEM) electrolyzer at both a small fuel cell's anode and cathode was observed and quantitatively measured in the in-plane imaging geometry direction (neutron beam parallel to membrane and with channels parallel to the beam) by applying the neutron radiography principle at the neutron imaging facility (NIF) of NIST, Gaithersburg, USA. The test section had 6 parallel channels with an active area of 5 cm2 and i...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Industrial Application Experiments on the Neutron Imaging Instrument DINGO
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Ulf Garbe, Yogita Ahuja, Ralph Ibrahim, Huijun Li, Laurie Aldridge, Filomena Salvemini, Anna Ziara Paradowska The new neutron radiography / tomography / imaging instrument DINGO is operational since October 2014 to support the area of neutron imaging research at ANSTO. The instrument is designed for a diverse community in areas like defense, industrial, cultural heritage and archaeology applications. In the field of industrial application it provides a useful tool for studying cracking and defects in concrete or other structural material. Since b...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Recent Applications of Neutron Imaging Methods
Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): E. Lehmann, D. Mannes, A. Kaestner, C. Grünzweig The methodical progress in the field of neutron imaging is visible in general but on different levels in the particular labs. Consequently, the access to most suitable beam ports, the usage of advanced imaging detector systems and the professional image processing made the technique competitive to other non-destructive tools like X-ray imaging. Based on this performance gain and by new methodical approaches several new application fields came up – in addition to the already established ones. Accord...
Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research
Modelling of Holographic Formation of Diffraction Structures in Photopolymerizable Compositions
Publication date: 2017 Source:Physics Procedia, Volume 86 Author(s): A.O. Semkin, S.N. Sharangovich In this work the theoretical model of holographic recording of one-dimensional transmission diffraction structures in photopolymerizable compositions is developed. This model is taking in to account the statistical possibility of the fact that, firstly, different processes of polymeric chain growth and termination are taking place simultaneously and, secondly, the non-linear Fabri-Perot interferometer, formed in the sample, causes recording beam intensity oscillations. The correspondence between the theoretical model and...
Source: Physics Procedia - February 20, 2017 Category: Physics Source Type: research
