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Bannenberg, L.J. (author), Verhoeff, D. (author), Jonckers Newton, Nick (author), Thijs, M.A. (author), Schreuders, H. (author)Here, we study the structural and optical properties of tetragonal β-tantalum-sputtered thin films both ex situ and when exposed to hydrogen, with a focus on optical hydrogen sensing applications. Using optical transmission measurements, out-of-plane and in-plane X-ray diffraction, and X-ray and neutron reflectometry, we show that thin film β...journal article 2024
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Yartys, Volodymyr A. (author), Denys, Roman V. (author), Akselrud, Lev G. (author), Vajeeston, Ponniah (author), Dankelman, B.J.R. (author), Plomp, J. (author), Block, Theresa (author), Pöttgen, Rainer (author), Wragg, David (author)The work was aimed on reaching a better understanding of the effect of magnesium as a component of the hydride-forming LaMgSn intermetallic compound crystallising with the orthorhombic TiNiSi type of structure on the hydrogenation behaviours, crystal structure and bonding interactions with hydrogen. The LaMgSn structure is significantly...journal article 2024
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Angst, Ueli M. (author), Rossi, Emanuele (author), Boschmann Käthler, Carolina (author), Mannes, David (author), Trtik, Pavel (author), Elsener, Bernhard (author), Zhou, Z. (author), Strobl, Markus (author)The steel–concrete interface (SCI) is known to play a major role in corrosion of steel in concrete, but a fundamental understanding is still lacking. One reason is that concrete’s opacity complicates the study of internal processes. Here, we report on the application of bimodal X-ray and neutron microtomography as in-situ imaging techniques...journal article 2024
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Shafabakhsh, Paiman (author), Cordonnier, Benoît (author), Pluymakers, Anne (author), Le Borgne, Tanguy (author), Mathiesen, Joachim (author), Linga, Gaute (author), Hu, Yi (author), Kaestner, Anders (author), Renard, François (author)In many geological systems, the porosity of rock or soil may evolve during mineral precipitation, a process that controls fluid transport properties. Here, we investigate the use of 4D neutron imaging to image flow and transport in Bentheim sandstone core samples before and after in-situ calcium carbonate precipitation. First, we demonstrate...journal article 2024
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van Sluijs, R. (author), Blaauw, Menno (author)The k<sub>0</sub>-method (De Corte in The k<sub>0</sub>-standardization method: move to the optimization of neutron activation analysis. Habil. Thesis, Ghent University, Belgium, 1987) was developed solely for the use of (n, γ) nuclear reactions in neutron activation analysis. For this, a definition of only the thermal and epi-thermal flux...journal article 2023
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Sans-Planell, O. (author), Cantini, F. (author), Costa, M. (author), Durisi, E. (author), Grazzi, F. (author), Mafucci, E. (author), Monti, V. (author), Bedogni, R. (author), Li, Y. (author), van Eijck, L. (author)The ANET project aims at developing 2D compact neutron collimators for neutron imaging applications. The results of the ANET collimator performances, presented in this communication, are based on data collected at the FISH beamline at TU-Delft. Two independent methods to evaluate the neutron radiography resolution are described and discussed,...journal article 2023
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Shen, Q. (author), Batashev, I. (author), Zhang, F. (author), Ojiyed, Hamutu (author), Dugulan, A.I. (author), van Dijk, N.H. (author), Brück, E.H. (author)The transition-metal based Laves phase materials represent an extended family of alloys with rich and fascinating physical properties. In this work, we have investigated the negative thermal expansion and magnetocaloric effect in arc-melted and melt-spun Fe<sub>2</sub>Hf<sub>1-</sub><sub>x</sub>Ti<sub>x</sub> (x = 0.15, 0.27, 0.30, 0.33, 0.36...journal article 2023
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Bannenberg, L.J. (author), Schreuders, H. (author), van Beugen, N. (author), Kinane, Christy (author), Hall, Stephen (author), Dam, B. (author)Accurate, cost-efficient, and safe hydrogen sensors will play a key role in the future hydrogen economy. Optical hydrogen sensors based on metal hydrides are attractive owing to their small size and costs and the fact that they are intrinsically safe. These sensors rely on suitable sensing materials, of which the optical properties change...journal article 2023
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Niedermeier, Jana (author), Penner, Crystal (author), Usherovich, Samuel (author), Bélanger-Champagne, Camille (author), Paulssen, E. (author), Hoehr, Cornelia (author)In recent years, proton therapy has gained importance as a cancer treatment modality due to its conformality with the tumor and the sparing of healthy tissue. However, in the interaction of the protons with the beam line elements and patient tissues, potentially harmful secondary neutrons are always generated. To ensure that this neutron dose...journal article 2023
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Iashina, E.G. (author), Bouwman, W.G. (author), Duif, C.P. (author), Dalgliesh, Robert M. (author), Varfolomeeva, Elena Y. (author), Pantina, Rimma A. (author), Kovalev, Roman A. (author), Fedorova, Natalia D. (author), Grigoriev, S. V. (author)The organization of chromatin in the nuclei of rat lymphocyte was studied by time-of-flight spin-echo small-angle neutron scattering (ToF-SESANS). The procedures of the measurements in ToF and monochromatic SESANS modes were compared. It is shown that the sensitivity of the ToF method is significantly higher than that of the monochromatic mode....journal article 2023
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Ioannidou, C. (author)The focus of the present work is on the micro-alloying element vanadium, which is well known for providing precipitation strengthening to steels and which has, therefore, attracted a lot of interest the last decades. Vanadium carbide precipitation can take place in the migrating austenite/ferrite interface during the austenite-to-ferrite phase...doctoral thesis 2022
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Miao, Xuefei (author), Gong, Yong (author), Zhang, F. (author), You, Yurong (author), Caron, Luana (author), Qian, Fengjiao (author), Xu, Feng (author), van Dijk, N.H. (author), Brück, E.H. (author)Magnetocaloric materials undergoing reversible phase transitions are highly desirable for magnetic refrigeration applications. (Mn,Fe)<sub>2</sub>(P,Si) alloys exhibit a giant magnetocaloric effect accompanied by a magnetoelastic transition, while the noticeable irreversibility causes drastic degradation of the magnetocaloric properties...journal article 2022
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van Amelrooij, Edward (author), van de Giesen, N.C. (author), Plomp, J. (author), Thijs, M.A. (author), Fico, Tomáš (author)A newly developed Boron-based Large-scale Observation of Soil Moisture (or BLOSM) system is currently being tested and implemented. The stationary system provides a cost-effective way to measure fast and thermalized neutrons by using low-cost, non–hazardous and accessible materials and equipment. BLOSM operates by measuring cosmic-ray induced...journal article 2022
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Blaauw, Menno (author), D’Agostino, Giancarlo (author), di Luzio, Marco (author), Dung, Ho Manh (author), Jacimovic, Radojko (author), Da Silva Dias, Mauro (author), Semmler, Renato (author), van Sluijs, Robbert (author), Barradas, Nuno Pessoa (author)In order to establish the variation between results in mass fractions due to software implementation, as measured by the k<sub>0</sub>-method for INAA, the IAEA has organized a software intercomparison. A complete set of test spectra and associated information was assembled. Efficiency curves, neutron spectrum parameters, correction factors...journal article 2022
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Chetverikov, Yu O. (author), Akselrod, L. A. (author), Grigor’ev, S. V. (author), van der Kraan, J.P.M. (author), Sumbatyan, A. A. (author), Nagorny, A. V. (author), Tarnavich, V. V. (author)Abstract: The current state of the implementation of the project for building a spin-echo instrument for small-angle neutron scattering at the PIK reactor of the St. Petersburg Nuclear Physics Institute, National Research Center “Kurchatov Institute,” is described. In the course of the project, work is carried out on mathematical modeling,...journal article 2022
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Rangel Cardenas, A.L. (author)In this thesis several aspects of PEM fuel cells are discussed. From an atomic scale, e.g. crystal and electronic structure of a non-noble metal material, e.g. (H)zLiMn2O4 (protonated spinel lithium manganese oxide) for electrocatalysis and its dynamics, to meso-macro scale effects such as those concerning transport resistances at the membrane...doctoral thesis 2021
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Bouwman, W.G. (author)Spin-echo small-angle neutron scattering (SESANS) yields structural information on length scales from 30 nanometres up till 20 micrometres. These length scales match nicely those of colloids, protein networks and fat droplets, which are present in many food materials. This makes SESANS an excellent probe to study food materials. An interesting...journal article 2021
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Atkins, Duncan (author), Capria, Ennio (author), Edström, Kristina (author), Famprikis, T. (author), Grimaud, Alexis (author), Jacquet, Quentin (author), Johnson, S.M. (author), Matic, Aleksandar (author), Wagemaker, M. (author)Li-ion batteries are the essential energy-storage building blocks of modern society. However, producing ultra-high electrochemical performance in safe and sustainable batteries for example, e-mobility, and portable and stationary applications, demands overcoming major technological challenges. Materials engineering and new chemistries are key...journal article 2021
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Li, Fankang (author), Steinke, Nina J. (author), Dalgliesh, Robert M. (author), Washington, Adam L. (author), Shen, Jiazhou (author), Pynn, Roger (author), Parnell, S.R. (author)The first measurements of magnetic correlation functions are presented using time-of-flight Spin-echo modulated small angle neutron scattering (SEMSANS) on the Larmor instrument at the ISIS pulsed neutron source. The accessible length scale is beyond that of the conventional SANS. A simplified model is presented to calculate the expected...journal article 2021
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Kuhn, Stephen J. (author), Geerits, Niels (author), Franz, Christian (author), Plomp, J. (author), Dalgliesh, Robert M. (author), Parnell, S.R. (author)The modulated intensity by zero effort small-angle neutron scattering (MI-SANS) technique is used to measure scattering with a high energy resolution on samples normally ill-suited for neutron resonance spin echo. The self-diffusion constant of water is measured over a q-t range of 0.01-0.2Å-1 and 70-500ps. In addition to demonstrating the...journal article 2021