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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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Yang, Hankai (author)Time-of-Flight (ToF) is an optical range detection technique that derives range from the round-trip time of light pulse between the imager and the target. Due to the simple hardware and distance extraction algorithm, ToF imagers are widely adopted in existing (automotive, consumer electronics, etc.) and emerging (AR/VR, etc.) applications...master thesis 2022
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Chen, Mingzhe (author)Light detection and ranging (LIDAR) is rapidly emerging as a key technology for depth sensing applications. LIDAR acts as an auxiliary ranging technique, such as radar, thermal image ranging, image recognition, and time-of-flight (TOF) sensor. As a special type of direct time-of-flight (D-TOF) system, this work presents the system design and the...master thesis 2022
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Dukker, Sven (author), Minten, Melle (author)Localization is an important element for a moving swarm of robots. A swarm contains many individuals, and it is essential that the swarm members do not collide. Expensive and complex implementations to localize others is undesirable. Hence, a localization system designed using the available resources is desired. The available techniques that...bachelor thesis 2022
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Herrmann, A. (author), van Soestbergen, M. (author), Erich, S. J.F. (author), van der Ven, L. G.J. (author), Huinink, H. P. (author), van Driel, W.D. (author), Mavinkurve, A. (author), De Buyl, F. (author), Adan, O. C.G. (author)The risk of corrosion poses a challenge to meet the stringent reliability requirements of microelectronic devices that are used in harsh environments. Microelectronic devices are often encapsulated in polymer packaging materials, which protect them from corrosion. These polymers are, however, not completely hermetic and thus allow small...journal article 2022
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Pipintakos, Georgios (author), Lommaert, Caitlin (author), Varveri, Aikaterini (author), Van den bergh, Wim (author)The ageing of bitumen has received great attention both from a chemical and rheological perspective due to its direct impact on asphalt performance. However, open questions with respect to the convergence of the synchronous ageing changes in rheology and chemistry of bitumen still exist. This paper addresses these alterations of chemistry and...journal article 2022
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Szynkowska-Jóźwik, Małgorzata I. (author), Maćkiewicz, Elżbieta (author), Rogowski, Jacek (author), Gajek, Magdalena (author), Pawlaczyk, Aleksandra (author), de Puit, M. (author), Parczewski, Andrzej (author)Time-of-flight secondary ion mass spectrometry (TOF-SIMS) was applied to detect traces of amphetamine on fingerprints. In the present study, three different lift tapes and latent powder fingerprints were tested. The obtained results show that it is possible to identify traces of a drug as well as its distribution over the tested fingerprint...journal article 2021
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Barri, Chiara (author), Mafakheri, Erfan (author), Fagiani, Luca (author), Tavani, Giulio (author), Barzaghi, Andrea (author), Chrastina, Daniel (author), Fedorov, Alexey (author), Frigerio, Jacopo (author), Lodari, M. (author)We report on a systematic analysis of phosphorus diffusion in silicon on insulator thin film via spin-on-dopant process (SOD). This method is used to provide an impurity source for semiconductor junction fabrication. The dopant is first spread into the substrate via SOD and then diffused by a rapid thermal annealing process. The dopant...journal article 2021
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Schaart, D.R. (author)The imaging performance of clinical positron emission tomography (PET) systems has evolved impressively during the last ∼15 years. A main driver of these improvements has been the introduction of time-of-flight (TOF) detectors with high spatial resolution and detection efficiency, initially based on photomultiplier tubes, later silicon...review 2021
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Pipintakos, Georgios (author), Soenen, Hilde (author), Ching, H. Y.Vincent (author), Velde, Christophe Vande (author), Doorslaer, Sabine Van (author), Lemière, Filip (author), Varveri, Aikaterini (author), Van den bergh, Wim (author)Understanding the fundamental mechanisms of oxidative ageing in bitumen is considered of paramount importance in order to take steps towards durable binders able to tackle distresses related to this phenomenon which deteriorates the asphalt performance. This paper focuses on the identification of the intermediate and final oxygenated products...journal article 2021
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Pipintakos, Georgios (author), Ching, H. Y.Vincent (author), Mühlich, Uwe (author), Soenen, Hilde (author), Van Doorslaer, Sabine (author), Sjövall, Peter (author), Varveri, Aikaterini (author), Vande Velde, Christophe (author), Lu, Xiaohu (author)Oxidative ageing in bituminous materials is considered to be one of the most important factors for distress types in road applications. The increasing interest in oxidative ageing has highlighted the need for a thorough understanding of the oxidation mechanisms at molecular level. This paper offers some insight in the validity of the proposed...book chapter 2021
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Schaart, D.R. (author), Schramm, Georg (author), Nuyts, Johan (author), Surti, Suleman (author)The first time-of-flight positron emission tomography (TOF-PET) scanners were developed as early as in the 1980s. However, the poor light output and low detection efficiency of TOF-capable detectors available at the time limited any gain in image quality achieved with these TOF-PET scanners over the traditional non-TOF PET scanners. The...review 2021
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Pipintakos, Georgios (author), Vincent Ching, H. Y. (author), Soenen, Hilde (author), Sjövall, Peter (author), Mühlich, Uwe (author), Van Doorslaer, Sabine (author), Varveri, Aikaterini (author), Van den bergh, Wim (author), Lu, Xiaohu (author)Oxidative ageing in bituminous materials is considered one of the most important factors for distress types in road applications. This paper aims to offer insights into the validity of commonly held beliefs regarding the oxidation phases of ageing in bitumen, the fast- and the slow-rate phase, and explore the main oxidation products formed...journal article 2020
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Visser, P. (author), Marcoen, K. (author), Trindade, G. F. (author), Abel, M. L. (author), Watts, J. F. (author), Hauffman, T. (author), Mol, J.M.C. (author), Terryn, H.A. (author)Chemical throwing power, being the distance over which an inhibitor is able to protect a defect effectively, is an important parameter for active protective coatings. This study investigates the chemical throwing power of lithium-based leachable corrosion inhibitors exhibiting different leaching kinetics, from coatings at different inhibitor...journal article 2019
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Borghi, G. (author), Tabacchini, V. (author), Bakker, P.J. (author), Schaart, D.R. (author)Recently, a monolithic scintillator detector for time-of-flight (TOF)/depth-of-interaction (DOI) positron emission tomography (PET) was developed. It has a detector spatial resolution of ∼1.7 mm full-width-at-half-maximum (FWHM), a coincidence resolving time (CRT) of ∼215 ps FWHM, and ∼4.7 mm FWHM DOI resolution. Here, we demonstrate, for the...journal article 2018
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Marcoen, Kristof (author), Visser, P (author), Trindade, G. F. (author), Abel, M. L. (author), Watts, J. F. (author), Mol, J.M.C. (author), Terryn, H.A. (author), Hauffman, T. (author)Organic primer coatings loaded with environmentally harmful Cr(VI) corrosion inhibitive pigments still play an important role in corrosion protection of aluminium alloys for the aerospace industry. A potential “green” alternative coating system has recently been developed, loaded with lithium salt corrosion inhibitors. Under exposure to...journal article 2018
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Venialgo Araujo, E. (author), Lusardi, Nicola (author), Garzetti, Fabio (author), Geraci, Angelo (author), Brunner, S. (author), Schaart, D.R. (author), Charbon-Iwasaki-Charbon, E. (author)Typically, a time-of-flight (TOF) PET block detector is built using application-specific integrated circuits (ASICs), since they integrate a high number of channels at a reasonable power consumption and into a small area. However, ASICs’ flexibility is limited and prototyping times are long because a semiconductor fabrication process is required...journal article 2018
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Brunner, S. (author), Schaart, D.R. (author)Due to detector developments in the last decade, the time-of-flight (TOF) method is now commonly used to improve the quality of positron emission tomography (PET) images. Clinical TOF-PET systems based on L(Y)SO:Ce crystals and silicon photomultipliers (SiPMs) with coincidence resolving times (CRT) between 325 ps and 400 ps FWHM have recently...journal article 2017
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Tabacchini, V. (author), Surti, Suleman (author), Borghi, G. (author), Karp, Joel S. (author), Schaart, D.R. (author)We have recently built and characterized the performance of a monolithic scintillator detector based on a 32 mm × 32 mm × 22 mm LYSO:Ce crystal read out by digital silicon photomultiplier (dSiPM) arrays coupled to the crystal front and back surfaces in a dual-sided readout (DSR) configuration. The detector spatial resolution appeared to be...journal article 2017
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Anand, C. (author), Shroff, S. (author), Groves, R.M. (author), Benedictus, R. (author)Ultrasonic arrays are used for non-destructive evaluation of structures for aerospace and other applications. With the increase in the usage of fibre-reinforced composites in aerospace structures, this evaluation becomes complex due to the effects of attenuation and reflection from the layer boundaries in composite laminates. Hence there is...conference paper 2017
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