Relevant bibliographies by topics / Tracker physics

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Tracker physics'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Tracker physics"

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Li, Chenpu, Qianjian Xing, and Zhenguo Ma. "HKSiamFC: Visual-Tracking Framework Using Prior Information Provided by Staple and Kalman Filter." Sensors 20, no. 7 (April 10, 2020): 2137. http://dx.doi.org/10.3390/s20072137.

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In the field of visual tracking, trackers based on a convolutional neural network (CNN) have had significant achievements. The fully-convolutional Siamese (SiamFC) tracker is a typical representation of these CNN trackers and has attracted much attention. It models visual tracking as a similarity-learning problem. However, experiments showed that SiamFC was not so robust in some complex environments. This may be because the tracker lacked enough prior information about the target. Inspired by the key idea of a Staple tracker and Kalman filter, we constructed two more models to help compensate for SiamFC’s disadvantages. One model contained the target’s prior color information, and the other the target’s prior trajectory information. With these two models, we design a novel and robust tracking framework on the basis of SiamFC. We call it Histogram–Kalman SiamFC (HKSiamFC). We also evaluated HKSiamFC tracker’s performance on dataset of the online object tracking benchmark (OTB) and Temple Color (TC128), and it showed quite competitive performance when compared with the baseline tracker and several other state-of-the-art trackers.
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Hao, Zhaohui, Guixi Liu, Jiayu Gao, and Haoyang Zhang. "Robust Visual Tracking Using Structural Patch Response Map Fusion Based on Complementary Correlation Filter and Color Histogram." Sensors 19, no. 19 (September 26, 2019): 4178. http://dx.doi.org/10.3390/s19194178.

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A part-based strategy has been applied to visual tracking with demonstrated success in recent years. Different from most existing part-based methods that only employ one type of tracking representation model, in this paper, we propose an effective complementary tracker based on structural patch response fusion under correlation filter and color histogram models. The proposed method includes two component trackers with complementary merits to adaptively handle illumination variation and deformation. To identify and take full advantage of reliable patches, we present an adaptive hedge algorithm to hedge the responses of patches into a more credible one in each component tracker. In addition, we design different loss metrics of tracked patches in two components to be applied in the proposed hedge algorithm. Finally, we selectively combine the two component trackers at the response maps level with different merging factors according to the confidence of each component tracker. Extensive experimental evaluations on OTB2013, OTB2015, and VOT2016 datasets show outstanding performance of the proposed algorithm contrasted with some state-of-the-art trackers.
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Claessens, Tom. "Analyzing Virtual Physics Simulations with Tracker." Physics Teacher 55, no. 9 (December 2017): 558–60. http://dx.doi.org/10.1119/1.5011834.

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Davergne, Thomas, Antsa Rakotozafiarison, Hervé Servy, and Laure Gossec. "Wearable Activity Trackers in the Management of Rheumatic Diseases: Where Are We in 2020?" Sensors 20, no. 17 (August 25, 2020): 4797. http://dx.doi.org/10.3390/s20174797.

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In healthcare, physical activity can be monitored in two ways: self-monitoring by the patient himself or external monitoring by health professionals. Regarding self-monitoring, wearable activity trackers allow automated passive data collection that educate and motivate patients. Wearing an activity tracker can improve walking time by around 1500 steps per day. However, there are concerns about measurement accuracy (e.g., lack of a common validation protocol or measurement discrepancies between different devices). For external monitoring, many innovative electronic tools are currently used in rheumatology to help support physician time management, to reduce the burden on clinic time, and to prioritize patients who may need further attention. In inflammatory arthritis, such as rheumatoid arthritis, regular monitoring of patients to detect disease flares improves outcomes. In a pilot study applying machine learning to activity tracker steps, we showed that physical activity was strongly linked to disease flares and that patterns of physical activity could be used to predict flares with great accuracy, with a sensitivity and specificity above 95%. Thus, automatic monitoring of steps may lead to improved disease control through potential early identification of disease flares. However, activity trackers have some limitations when applied to rheumatic patients, such as tracker adherence, lack of clarity on long-term effectiveness, or the potential multiplicity of trackers.
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Manzari, V. "Physics performance with the ALICE silicon tracker." Journal of Instrumentation 10, no. 05 (May 6, 2015): C05005. http://dx.doi.org/10.1088/1748-0221/10/05/c05005.

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Tajima, Hiroyasu. "GLAST Tracker." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 569, no. 1 (December 2006): 140–43. http://dx.doi.org/10.1016/j.nima.2006.08.063.

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Fiaz, Mustansar, Arif Mahmood, Ki Yeol Baek, Sehar Shahzad Farooq, and Soon Ki Jung. "Improving Object Tracking by Added Noise and Channel Attention." Sensors 20, no. 13 (July 6, 2020): 3780. http://dx.doi.org/10.3390/s20133780.

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CNN-based trackers, especially those based on Siamese networks, have recently attracted considerable attention because of their relatively good performance and low computational cost. For many Siamese trackers, learning a generic object model from a large-scale dataset is still a challenging task. In the current study, we introduce input noise as regularization in the training data to improve generalization of the learned model. We propose an Input-Regularized Channel Attentional Siamese (IRCA-Siam) tracker which exhibits improved generalization compared to the current state-of-the-art trackers. In particular, we exploit offline learning by introducing additive noise for input data augmentation to mitigate the overfitting problem. We propose feature fusion from noisy and clean input channels which improves the target localization. Channel attention integrated with our framework helps finding more useful target features resulting in further performance improvement. Our proposed IRCA-Siam enhances the discrimination of the tracker/background and improves fault tolerance and generalization. An extensive experimental evaluation on six benchmark datasets including OTB2013, OTB2015, TC128, UAV123, VOT2016 and VOT2017 demonstrate superior performance of the proposed IRCA-Siam tracker compared to the 30 existing state-of-the-art trackers.
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Zhao, Long, Mubarak Adam Ishag Mahmoud, Honge Ren, and Meng Zhu. "A Visual Tracker Offering More Solutions." Sensors 20, no. 18 (September 19, 2020): 5374. http://dx.doi.org/10.3390/s20185374.

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Most trackers focus solely on robustness and accuracy. Visual tracking, however, is a long-term problem with a high time limitation. A tracker that is robust, accurate, with long-term sustainability and real-time processing, is of high research value and practical significance. In this paper, we comprehensively consider these requirements in order to propose a new, state-of-the-art tracker with an excellent performance. EfficientNet-B0 is adopted for the first time via neural architecture search technology as the backbone network for the tracking task. This improves the network feature extraction ability and significantly reduces the number of parameters required for the tracker backbone network. In addition, maximal Distance Intersection-over-Union is set as the target estimation method, enhancing network stability and increasing the offline training convergence rate. Channel and spatial dual attention mechanisms are employed in the target classification module to improve the discrimination of the trackers. Furthermore, the conjugate gradient optimization strategy increases the speed of the online learning target classification module. A two-stage search method combined with a screening module is proposed to enable the tracker to cope with sudden target movement and reappearance following a brief disappearance. Our proposed method has an obvious speed advantage compared with pure global searching and achieves an optimal performance on OTB2015, VOT2016, VOT2018-LT, UAV-123 and LaSOT while running at over 50 FPS.
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PROCUREUR, S. "MICROMEGAS TRACKERS FOR HADRONIC PHYSICS." Modern Physics Letters A 28, no. 13 (April 30, 2013): 1340024. http://dx.doi.org/10.1142/s0217732313400245.

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Modern experiments in hadronic physics require excellent detection and tracking capabilities in very high flux environment. Probing the quark and gluon content of the nucleon indeed necessitates semi-inclusive or exclusive reactions with very small cross-sections. Micromegas detectors have therefore been rapidly identified as natural candidates to equip the hottest region of the COMPASS spectrometer at CERN. Benefitting from several years of smooth operation at COMPASS, the Micromegas have been proposed to equip the future central tracker of the CLAS12 experiment at the Jefferson Laboratory. This project triggered an important R&D on the bulk and resistive technologies and inspired several projects involving cylindrical trackers. This paper focuses on the design and performance of the COMPASS and CLAS12 Micromegas, and reviews the R&D made on the discharge reduction in large hadron fluxes.
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Xie, Jing, Erik Stensrud, and Torbjørn Skramstad. "Detection-Based Object Tracking Applied to Remote Ship Inspection." Sensors 21, no. 3 (January 23, 2021): 761. http://dx.doi.org/10.3390/s21030761.

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We propose a detection-based tracking system for automatically processing maritime ship inspection videos and predicting suspicious areas where cracks may exist. This system consists of two stages. Stage one uses a state-of-the-art object detection model, i.e., RetinaNet, which is customized with certain modifications and the optimal anchor setting for detecting cracks in the ship inspection images/videos. Stage two is an enhanced tracking system including two key components. The first component is a state-of-the-art tracker, namely, Channel and Spatial Reliability Tracker (CSRT), with improvements to handle model drift in a simple manner. The second component is a tailored data association algorithm which creates tracking trajectories for the cracks being tracked. This algorithm is based on not only the intersection over union (IoU) of the detections and tracking updates but also their respective areas when associating detections to the existing trackers. Consequently, the tracking results compensate for the detection jitters which could lead to both tracking jitter and creation of redundant trackers. Our study shows that the proposed detection-based tracking system has achieved a reasonable performance on automatically analyzing ship inspection videos. It has proven the feasibility of applying deep neural network based computer vision technologies to automating remote ship inspection. The proposed system is being matured and will be integrated into a digital infrastructure which will facilitate the whole ship inspection process.
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Dissertations / Theses on the topic "Tracker physics"

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Meister, Julio César. "Tracker Physics : objetos em movimento e registros de representação." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/150248.

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Esta pesquisa traz um estudo sobre a construção inicial dos conceitos de limites e taxa de variação, com alunos do segundo ano do Ensino Médio da Escola Antônio de Castro Alves. Como metodologia utilizamos a perspectiva do Estudo de Caso (PONTE, 2006). O trabalho propõe a utilização do software Tracker Physics, que possibilita a análise de objetos em movimento gravados por vídeo a partir de diferentes registros gerados pelo software, tais como gráficos, tabelas e registros algébricos. Com o uso deste software e da teoria de Duval, procuramos responder à seguinte pergunta norteadora: como os alunos do Ensino Médio compreendem os conceitos de taxa de variação e de limite a partir de objetos em movimento analisados com o Tracker Physics? Por tratar-se de objetos em movimento, utilizamos a Física como meio para trabalharmos os conceitos matemáticos. Antes de chegarmos ao debate sobre limite e taxa de variação, a proposta levanta questões acerca da interpretação de gráficos, tabelas, equações e cálculos numéricos, que não são o escopo principal do trabalho, mas que são importantes para o processo de construção dos conceitos propostos, e a análise dos dados aponta resultados interessantes. Os dados da pesquisa são analisados à luz da teoria dos Registros Semióticos de Duval. Podemos apontar, ao final da pesquisa, que os alunos avançaram na compreensão dos conceitos abordados nas situações apresentadas e analisadas.
This research brings a study about the initial construction of the concepts of limits and rate of variation, with students of the second year of High School of the School Antônio de Castro Alves. As methodology we use the case study perspective (PONTE, 2006). The work proposes the use of Tracker Physics software, which enables the analysis of moving objects recorded by video from different records generated by the software, such as graphs, tables and algebraic records. With the use of this software and Duval's theory, we try to answer the following guiding question: how do the students of the High School understand the concepts of rate of variation and limit from moving objects analyzed with Tracker Physics? Because we are dealing with moving objects, we use Physics as the means to work on mathematical concepts. Before we reach the debate about limit and rate of variation, the proposal raises questions about the interpretation of graphs, tables, equations and numerical calculations, which are not the main scope of the work, but which are important for the process of construction of the proposed concepts , And the analysis of the data points interesting results. The data of the research is analyzed in light of the theory of the Duval Semiotic Registers. We can point out, at the end of the research, that the students advanced in understanding the concepts addressed in the situations presented and analyzed.
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Santana, Rodolfo S. B. Massachusetts Institute of Technology. "Thermal testing of the STAR forward GEM tracker disks." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/51582.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2009.
Includes bibliographical references (leaf 41).
In my thesis project, I worked on the Thermal Model for the FGT detector. The purpose of this thermal model is to simulate the cooling system for the electronics of the FGT. In this thesis report, I go over the construction of the model disks for the thermal model and the measurements I made on one disk. I also discuss the LabVIEW program I worked on to monitor the temperature of the readout cards over time. The measurements I made with the LabVIEW program concerned the orientation of the disks. The two orientations I took measurements for were for a disk placed upside down in a horizontal surface and for a disk placed vertically on a pipe. After analyzing the data, I found that these two orientations have no effect on the heating and the cooling of the readout cards.
by Rodolfo Santana.
S.B.
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Alruwaili, Manal Abluk. "PERFORMANCE OF THE HEAVY FLAVOR TRACKER (HFT) DETECTOR IN STAR EXPERIMENT AT RHIC." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448032801.

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Wingham, Matthew. "Commissioning of the CMS tracker and preparing for early physics at the LHC." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491122.

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The Compact Muon Solenoid (CMS) experiment is a general purpose detector at the Large Hadron Collider. It has been designed and optimised to discover the Higgs boson and physics beyond the Standard Model. An early discovery of the Higgs boson is the collaboration's top priority and will require a good understanding of both the detector and the physics of the background processes, with a small integrated luminosity. This principle has been the driving force behind the work presented in this thesis. The Silicon Strip Tracker (SST) sits at the heart of the CMS detector. The development of core algorithms to commission the SST are reviewed and the process of live commissioning at the Tracker Integration Facility is described. A crowning success of this study is the calibration of 1.6M channels and their synchronisation to a cosmic muon trigger to within 1 ns. The SST is expected to produce five times more zero-suppressed data than any other CMS subdetector. As such its efficient handling within with High Level Trigger algorithms is paramount. The performance of the online hit reconstruction software is profiled, the inefficiencies are characterised and a new schema to focus on physics regions-of-interest only is proposed. As an example of its success, when running the single 't trigger path over n' -+ r VT events, hit reconstruction times were reduced from 838 ± 5 ms to only 5.13 ± 0.05 ms without any loss in tracking efficiency. The new software is now the tracker community's permanent online solution and is expected to become the offline solution in the near future. bbZO production at the LHC is of great interest, primarily due to its status as a background to a supersymmetric Higgs boson production process. The preparation for a cross section measurement with 100 pb-I of data (expected by the end of 2009) is made. The prominent backgrounds are identified and a signal selection strategy is developed and optimised using Monte Carlo. This study demonstrates that a cross section measurement with this amount of data is feasible. Finally, a method to estimate background from data is tested.
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Alanazi, Norah. "CALIBRATION OF THE HEAVY FLAVOR TRACKER (HFT) DETECTOR IN STAR EXPERIMENT AT RHIC." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448026418.

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Skogeby, Richard. "Resolution Improvements and Physical Modelling of a Straw Tracker : The NA62 Experiment at CERN." Thesis, Umeå universitet, Institutionen för fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140175.

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Lab measurements and Monte Carlo simulations have been carried out for the evaluation of the Straw-type detectors used in the NA62 experiment at CERN. In addition, analyses of experiment data was used in corrections to improve the reconstruction of particle tracks, ultimately leading to improved resolution of the detector system as a whole. 97.7 percent of the Straws were aligned to within 30 microns, quantified as the deviation from zero of the mean of the inherent residual distribution of each Straw. A drift time dependence on where along the Straw the particle ionized have been corrected for; before the correction the dependence was as big as 6 ns. A radius-drift time relation based on the leading edge timing distribution has been deduced and implemented. Upon implementation artifacts from the piecewise fits used became evident. An alternative approach using residuals has been put forward.
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Vignola, Gianpiero. "Time resolution study of SiPMs as tracker elements for the ALICE 3 timing layer." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23512/.

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Following the present ALICE, a next generation experiment at the LHC is under discussion (for LHC-Run5): ALICE 3. The idea is to have a superior tracking, vertexing, and timing all-silicon detector. For the Particle IDentification via Time Of Flight (PID-TOF), a detector capable of 20 ps time resolution positioned at 1 m from the interaction point is required. For this aim, a huge R&D phase on different technologies has just begun. Preliminary studies will be reported. In particular, the first time resolution study using SiPM detectors directly detecting Minimum Ionizing Particles will be discussed. The results will be also compared with laser measurements.
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Nutbeam-Tuffs, Sian Louise. "A prototype scintillating fibre tracker for the cosmic-ray muon tomography of legacy nuclear waste containers." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/5870/.

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Tomographic imaging techniques using the Coulomb scattering of cosmic-ray muons are increasingly being exploited for the non-destructive assay of shielded containers in a wide range of applications. One such application is the characterisation of legacy nuclear waste materials stored within industrial containers. The design, assembly and performance of a prototype muon tomography system developed for this purpose are detailed in this thesis. This muon tracker consists of two tracking modules above and below the volume to be assayed. Each module comprises two orthogonal planes of 2mm fibres. The modular configuration allows the reconstruction of the initial and scattered muon trajectories which enable the container content, with respect to atomic number Z, to be determined. Fibre signals are read out by Hamamatsu H8500 MAPMTs with two fibres coupled to each pixel via dedicated pairing schemes developed to avoid space point ambiguities and retain the high spatial resolution of the fibres. The design, component tests and assembly of the detector system are detailed and presented alongside results from commissioning and performance studies with data collected after construction. These results reveal high stability during extended collection periods with detection efficiencies in the region of 80% per layer. Minor misalignments of millimetre order have been identified and corrected in software. A GEANT4 simulation was created and used for testing image reconstruction algorithms and for comparison to experimental scenario. A likelihood-based image reconstruction algorithm was developed and is described with reconstructed image results from simulated and experimental data for various scenarios are presented. These results verify the simulation and show discrimination between the low, medium and high-Z materials imaged and highlight the high spatial resolution provided by the detector system.
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Poley, Anne-Luise. "Studies of adhesives and metal contacts on silicon strip sensors for the ATLAS Inner Tracker." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19140.

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In dieser Dissertationen werden Untersuchungen zur Verwendung von Klebstoffen auf der Oberfläche von Silizium-Streifen-Sensoren für die Konstruktion von Detektormodulen für das ATLAS Phase-II Upgrade vorgestellt. Drei UV-härtende Klebstoffe wurden im Vergleich zu dem derzeitigen Standard-Klebstoff an 60 ATLAS07 Miniatur-Sensoren getestet. Der Einfluss von Bestrahlung auf die chemische Zusammensetzung aller verwendeten Klebstoffe wurde unter Verwendung von Standardmethoden zur chemischen Analyse untersucht. Mithilfe der Gaschromatographie-Massenspektrometrie-Analysen von Klebstoffproben-Extrakten wurden verschiedene Ausmaße von Molekülvernetzung und gelösten Molekülbindungen festgestellt und der Grad von Strahlenhärte aller untersuchten Klebstoffe quantifiziert. Mithilfe einer Sensor-Probestation wurden die elektrischen Eigenschaften von teilweise mit Kleber bedeckten Sensoren untersucht. Im Vergleich zu Sensoren vor dem Bekleben zeigten mit Klebstoff bedeckte Sensoren einen erhöhten Leckstrom, erhöhte Zwischen-Streifen-Kapazitäten sowie Durchbrüche des Leckstroms bei niedrigeren angelegten Spannungen. Messungen der Ladungssammlungseffizienz in einem Beta-Strahlungs-Teststand wurden verwendet um den Einfluss von aufgetragenen Klebstoffen auf das Silizium-Kristallgitter zu untersuchen. Alle getesteten Sensoren - mit und ohne aufgebrachtem Klebstoff - zeigten vergleichbare Ladungssammlungseffizienzen sowie Signal-Rausch-Verhältnisse oberhalb des geforderten Minimums von zehn bei der vorhergesehenen Verarmungsspannung. Untersuchungen von Sensoren in Teststrahlmessungen zeigten außerdem, dass Sensoren um die zum Drahtbonden verwendeten Aluminiumflächen ungleichmäßig Ladung sammelten. Weiterführende Messungen konnten bestätigen, dass durch die Aluminiumflächen und darunterliegende Dotierungen das elektrische Feld innerhalb des Sensors verändert und zusätzliche Ladung um die Drahtbond-Flächen gesammelt wurde.
This thesis presents studies investigating the use of adhesives on the active area of silicon strip sensors for the construction of silicon strip detector modules for the ATLAS Phase-II Upgrade. 60 ATLAS07 miniature sensors were tested using three UV cure glues in comparison with the current baseline glue. The impact of irradiation on the chemical composition of all adhesives under investigation was studied using three standard methods for chemical analysis. Gas chromatography combined with mass spectrometry analyses of glue sample extracts showed molecule cross-linking and broken chemical bonds to different extents and allowed to quantify the radiation hardness of the adhesives under investigation. Probe station measurements were used to investigate electrical characteristics of sensors partially covered with adhesives. The presence of glue on the active sensor area was found to increase the sensor leakage current and inter-strip capacitance and frequently led to early sensor breakdowns. Charge collection efficiency measurements in a $\beta$-source setup were used to study the influence of adhesives on the silicon bulk. All sensors under investigation showed equivalent charge collection efficiencies for sensors with and without glue, as well as signal-to-noise ratios above the required minimum of ten for the foreseen bias voltage. During testbeam studies, sensor strips were found to respond inhomogeneously in bond pad regions. Follow-up measurements confirmed that the presence of bond pads affects the electric field within a sensor and leads to additional charge being collected around bond pads.
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Ducourthial, Audrey. "Upgrade of the ATLAS Experiment Inner Tracker and related physics perspectives of the Higgs boson decay into two b quarks." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC212/document.

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Le LHC entrera dans sa phase à haute luminosité vers 2027 et pour profiter de l’augmentation importante du taux de collisions, ATLAS, et plus particulièrement son trajectographe doivent être améliorés en terme de résistance aux radiations et traitement de données à un taux accru. Grace au nouveau design du trajectographe at à l’amélioration d’algorithmes d’étiquetage des saveurs de jets, l’identification de jets issus de la désintégration de B hadrons sera facilitée et des canaux de physique possédant des quarks b dans leurs états finaux seront plus facilement accessible, parmi lesquels le couplage trilinéaire du boson de Higgs. La résistance aux raditions des capteurs à pixels en silicium joue un rôle primordial dans leur utilisation auprès des experience LHC. La quantification de l’impact des rayonnements sur les capteurs silicium est un enjeu crucial : un outil de digitisation des dommages des rayonnements a été développé pour modéliser l’impact des radiations dans les simulations Monte Carlo d’ATLAS. Le test de capteurs à pixels planaires, développés par le LPNHE et la fonderie FBK, constitue la partie principale de cette thèse. Les trois productions de capteurs testées possèdent plusieurs designs technologiques. Pour maximiser l’acceptance géométrique du détecteur, des capteurs à bord mince ont été développés. Deux options de polarisation durant les phases de test ont ausssi été étudiée. Les capteurs ont été testés à plusieurs phases d’irradiation. L’optimisation d’algorithme de b-tagging basé sur la reconstruction de vertex secondaire sera aussi présentée, ainsi qu’une étude concernant les performances du b-tagging à haut pT
By 2027, the LHC will enter its high luminosity regime, providing protons protons collisions at an unprecedented rate. The LHC experiments whill have to be upgraded to cope with this higher data rate. The new ATLAS Inner Tracker (ITk) will allow a better identification of b-quarks and interesting physics signature with b-quarks in the final states such as the Higgs trilinear coupling will be reachable. The work performed during this thesis consisted in testing planar pixel sensors for the ITk, as well as optimizing b-tagging algorithms. In parallel, a study on the radiation damage on silicon pixel sensors have been performed. The radiation hardness of silicon sensors plays a determinant role as it allows them to be efficient in the highly radiative environment at LHC. Understanding the impact of radiation in silicon sensors is a major challenge and a radiation damage digitizer which models radiation damage effects in ATLAS Monte Carlo simulations is currently developed by the ATLAS experiment. Three ITk silicon planar pixel sensors productions of LPNHE and FBK have been developed, produced and tested on beam. Sensors from these three productions aim to be part of the ITk and have to demonstrate good performance after being irradiated at high fluences. Several technological designs have been investigated, such as temporary metal biasing option and active edges which maximize the geometrical acceptance of the sensors. The optimization of b-tagging SV1 algorithm (a secondary-vertex based algorithm) will be pre- sented as well as a study on the extrapolation of b-tagging performances at high pT
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Books on the topic "Tracker physics"

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service), SpringerLink (Online, ed. The CMS Silicon Strip Tracker: Concept, Production, and Commissioning. Wiesbaden: Vieweg+Teubner Verlag / GWV Fachverlage GmbH, Wiesbaden, 2010.

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Tracks to innovation: Nuclear tracks in science and technology. New York: Springer, 1998.

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Geology), National Seminar-cum-Workshop on SSNTD (4th 1985 Wadia Institute of Himalayan. Nuclear tracks: Applications in earth sciences, space physics, and nuclear physics. Dehra Dun, India: Organising Committee of the Fourth National Seminar-cum-Workshop on SSNTD, 1986.

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Einstein et Poincaré: Sur les traces de la relativité. Paris: Le Pommier, 1999.

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La ragione sommersa: Tracce su alcuni snodi evolutivi della scienza. Milano, Italy: FrancoAngeli, 2007.

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Zhou, Dazhuang. CR-39 plastic nuclear track detectors in physics research. Hauppauge, N.Y: Nova Science Publishers, 2011.

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library, Wiley online, ed. Single particle tracking and single molecule energy transfer. Weinheim: Wiley-VCH, 2010.

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Dubovoĭ, Ėdvard Iosifovich. Po sledam nevidimok. Moskva: Izd-vo "Znanie", 1985.

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Dankers, Reinier Josephus. The physics performance of and level 2 trigger for the inner detector of ATLAS. [S.l: s.n., 1998.

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Evolution of silicon sensor technology in particle physics. Berlin: Springer, 2009.

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Book chapters on the topic "Tracker physics"

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Munker, Magdalena. "Integrated CMOS Sensor Technologies for the CLIC Tracker." In Springer Proceedings in Physics, 361–65. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_67.

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Genta, Ch. "Performances of the CMS Tracker." In NATO Science for Peace and Security Series B: Physics and Biophysics, 107–16. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2287-5_11.

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Beteta, Carlos Abellan. "Progress on the Upstream Tracker Electronics for the LHCb Upgrade." In Springer Proceedings in Physics, 390–94. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_73.

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Farinelli, R., M. Alexeev, A. Amoroso, F. Bianchi, M. Bertani, D. Bettoni, N. Canale, et al. "A Cylindrical GEM Inner Tracker for the BESIII Experiment At IHEP." In Springer Proceedings in Physics, 116–19. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_21.

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König, Axel. "The CMS Tracker Phase-2 Upgrade for the HL-LHC Era." In Springer Proceedings in Physics, 344–48. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_64.

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Meschini, M., M. Boscardin, G. F. Dalla Betta, M. Dinardo, G. Giacomini, D. Menasce, R. Mendicino, et al. "Pixel Detector Developments for Tracker Upgrades of the High Luminosity LHC." In Springer Proceedings in Physics, 349–55. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_65.

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Hasegawa, Yoji. "The ATLAS Transition Radiation Tracker and Muon Chamber System." In International Europhysics Conference on High Energy Physics, 1105–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-59982-8_210.

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Zalewska, Agnieszka. "The Silicon Tracker in the DELPHI Experiment at LEP2." In International Europhysics Conference on High Energy Physics, 1114–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-59982-8_212.

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Wang, Jike. "Design of the New ATLAS Inner Tracker (ITk) for the High Luminosity LHC." In Springer Proceedings in Physics, 102–8. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1313-4_21.

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Kuonen, Axel, Guido Haefeli, Olivier Girard, and Maria Elena Stramaglia. "Characterisation of Hamamatsu Silicon Photomultiplier Arrays for the LHCb Scintillating Fibre Tracker Upgrade." In Springer Proceedings in Physics, 221–24. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_41.

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Conference papers on the topic "Tracker physics"

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Klein, Katja. "Upgrade of the CMS Tracker." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0502.

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Huang, Qinhua, and Joao Pedro Athayde Marcondes de Andre. "Current status of JUNO Top Tracker." In European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.364.0431.

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Pezzullo, Gianantonio. "The Mu2e Tracker." In The 39th International Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.340.0542.

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Giovannella, Simona. "The Mu2e tracker and calorimeter systems." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.314.0496.

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Leverington, Blake Dean. "LHCb Upgrade – The Scintillating Fibre Tracker." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.234.0254.

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Blaszczyk, Flor de Maria. "T2K near detector tracker." In 35th International Conference of High Energy Physics. Trieste, Italy: Sissa Medialab, 2011. http://dx.doi.org/10.22323/1.120.0484.

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Ahuja, Sudha. "The CMS Tracker upgrade for HL-LHC." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.314.0476.

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Krizka, Karol. "The ATLAS Fast Tracker Processing Units - track finding and fitting." In 38th International Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.282.0965.

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Tian, Xinchun, Sanjib R. Mishra, Roberto Petti, and Duyang Hongyue. "Physics sensitivity studies of Fine-Grained Tracker." In Nuclear Structure and Dynamics ’15. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4931880.

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Hockicko, Peter, and Gabriela Tarjányiová. "INTERACTIVE LECTURES FROM PHYSICS USING PROGRAM TRACKER." In 10th International Conference on Education and New Learning Technologies. IATED, 2018. http://dx.doi.org/10.21125/edulearn.2018.1446.

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Reports on the topic "Tracker physics"

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Li, Xuan, Cheuk-Ping Wong, Melynda Brooks, J. Durham, Ming Liu, Astrid Morreale, Cesar Da Silva, and Walter Sondheim. A Proposed Forward Silicon Tracker for the Future Electron-Ion Collider and Associated Physics Studies. Office of Scientific and Technical Information (OSTI), September 2020. http://dx.doi.org/10.2172/1659154.

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Evenson, Kelly R., Ty A. Ridenour, Jacqueline Bagwell, and Robert D. Furberg. Sustaining Physical Activity Following Cardiac Rehabilitation Discharge. RTI Press, February 2021. http://dx.doi.org/10.3768/rtipress.2021.rr.0043.2102.

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Because many patients reduce exercise following outpatient cardiac rehabilitation (CR), we developed an intervention to assist with the transition and evaluated its feasibility and preliminary efficacy using a one-group pretest–posttest design. Five CR patients were enrolled ~1 month prior to CR discharge and provided an activity tracker. Each week during CR they received a summary of their physical activity and steps. Following CR discharge, participants received an individualized report that included their physical activity and step history, information on specific features of the activity tracker, and encouraging messages from former CR patients for each of the next 6 weeks. Mixed model trajectory analyses were used to test the intervention effect separately for active minutes and steps modeling three study phases: pre-intervention (day activity tracking began to CR discharge), intervention (day following CR discharge to day when final report sent), and maintenance (day following the final report to ~1 month later). Activity tracking was successfully deployed and, with weekly reports following CR, may offset the usual decline in physical activity. When weekly reports ceased, a decline in steps/day occurred. A scaled-up intervention with a more rigorous study design with sufficient sample size can evaluate this approach further.
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Udey, Ruth Norma. Statistical Data Analyses of Trace Chemical, Biochemical, and Physical Analytical Signatures. Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1080408.

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Toutin, T. DTM generation from IKONOS in-track stereo images using a 3D physical model. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2004. http://dx.doi.org/10.4095/219984.

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de Caritat, Patrice, Brent McInnes, and Stephen Rowins. Towards a heavy mineral map of the Australian continent: a feasibility study. Geoscience Australia, 2020. http://dx.doi.org/10.11636/record.2020.031.

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Heavy minerals (HMs) are minerals with a specific gravity greater than 2.9 g/cm3. They are commonly highly resistant to physical and chemical weathering, and therefore persist in sediments as lasting indicators of the (former) presence of the rocks they formed in. The presence/absence of certain HMs, their associations with other HMs, their concentration levels, and the geochemical patterns they form in maps or 3D models can be indicative of geological processes that contributed to their formation. Furthermore trace element and isotopic analyses of HMs have been used to vector to mineralisation or constrain timing of geological processes. The positive role of HMs in mineral exploration is well established in other countries, but comparatively little understood in Australia. Here we present the results of a pilot project that was designed to establish, test and assess a workflow to produce a HM map (or atlas of maps) and dataset for Australia. This would represent a critical step in the ability to detect anomalous HM patterns as it would establish the background HM characteristics (i.e., unrelated to mineralisation). Further the extremely rich dataset produced would be a valuable input into any future machine learning/big data-based prospectivity analysis. The pilot project consisted in selecting ten sites from the National Geochemical Survey of Australia (NGSA) and separating and analysing the HM contents from the 75-430 µm grain-size fraction of the top (0-10 cm depth) sediment samples. A workflow was established and tested based on the density separation of the HM-rich phase by combining a shake table and the use of dense liquids. The automated mineralogy quantification was performed on a TESCAN® Integrated Mineral Analyser (TIMA) that identified and mapped thousands of grains in a matter of minutes for each sample. The results indicated that: (1) the NGSA samples are appropriate for HM analysis; (2) over 40 HMs were effectively identified and quantified using TIMA automated quantitative mineralogy; (3) the resultant HMs’ mineralogy is consistent with the samples’ bulk geochemistry and regional geological setting; and (4) the HM makeup of the NGSA samples varied across the country, as shown by the mineral mounts and preliminary maps. Based on these observations, HM mapping of the continent using NGSA samples will likely result in coherent and interpretable geological patterns relating to bedrock lithology, metamorphic grade, degree of alteration and mineralisation. It could assist in geological investigations especially where outcrop is minimal, challenging to correctly attribute due to extensive weathering, or simply difficult to access. It is believed that a continental-scale HM atlas for Australia could assist in derisking mineral exploration and lead to investment, e.g., via tenement uptake, exploration, discovery and ultimately exploitation. As some HMs are hosts for technology critical elements such as rare earth elements, their systematic and internally consistent quantification and mapping could lead to resource discovery essential for a more sustainable, lower-carbon economy.
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Yatsymirska, Mariya. SOCIAL EXPRESSION IN MULTIMEDIA TEXTS. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11072.

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The article investigates functional techniques of extralinguistic expression in multimedia texts; the effectiveness of figurative expressions as a reaction to modern events in Ukraine and their influence on the formation of public opinion is shown. Publications of journalists, broadcasts of media resonators, experts, public figures, politicians, readers are analyzed. The language of the media plays a key role in shaping the worldview of the young political elite in the first place. The essence of each statement is a focused thought that reacts to events in the world or in one’s own country. The most popular platform for mass information and social interaction is, first of all, network journalism, which is characterized by mobility and unlimited time and space. Authors have complete freedom to express their views in direct language, including their own word formation. Phonetic, lexical, phraseological and stylistic means of speech create expression of the text. A figurative word, a good aphorism or proverb, a paraphrased expression, etc. enhance the effectiveness of a multimedia text. This is especially important for headlines that simultaneously inform and influence the views of millions of readers. Given the wide range of issues raised by the Internet as a medium, research in this area is interdisciplinary. The science of information, combining language and social communication, is at the forefront of global interactions. The Internet is an effective source of knowledge and a forum for free thought. Nonlinear texts (hypertexts) – «branching texts or texts that perform actions on request», multimedia texts change the principles of information collection, storage and dissemination, involving billions of readers in the discussion of global issues. Mastering the word is not an easy task if the author of the publication is not well-read, is not deep in the topic, does not know the psychology of the audience for which he writes. Therefore, the study of media broadcasting is an important component of the professional training of future journalists. The functions of the language of the media require the authors to make the right statements and convincing arguments in the text. Journalism education is not only knowledge of imperative and dispositive norms, but also apodictic ones. In practice, this means that there are rules in media creativity that are based on logical necessity. Apodicticity is the first sign of impressive language on the platform of print or electronic media. Social expression is a combination of creative abilities and linguistic competencies that a journalist realizes in his activity. Creative self-expression is realized in a set of many important factors in the media: the choice of topic, convincing arguments, logical presentation of ideas and deep philological education. Linguistic art, in contrast to painting, music, sculpture, accumulates all visual, auditory, tactile and empathic sensations in a universal sign – the word. The choice of the word for the reproduction of sensory and semantic meanings, its competent use in the appropriate context distinguishes the journalist-intellectual from other participants in forums, round tables, analytical or entertainment programs. Expressive speech in the media is a product of the intellect (ability to think) of all those who write on socio-political or economic topics. In the same plane with him – intelligence (awareness, prudence), the first sign of which (according to Ivan Ogienko) is a good knowledge of the language. Intellectual language is an important means of organizing a journalistic text. It, on the one hand, logically conveys the author’s thoughts, and on the other – encourages the reader to reflect and comprehend what is read. The richness of language is accumulated through continuous self-education and interesting communication. Studies of social expression as an important factor influencing the formation of public consciousness should open up new facets of rational and emotional media broadcasting; to trace physical and psychological reactions to communicative mimicry in the media. Speech mimicry as one of the methods of disguise is increasingly becoming a dangerous factor in manipulating the media. Mimicry is an unprincipled adaptation to the surrounding social conditions; one of the most famous examples of an animal characterized by mimicry (change of protective color and shape) is a chameleon. In a figurative sense, chameleons are called adaptive journalists. Observations show that mimicry in politics is to some extent a kind of game that, like every game, is always conditional and artificial.
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Operating a Tractor - Physical Development. Marshfield Clinic Research Foundation, 2017. http://dx.doi.org/10.21636/nfmc.nccrahs.youthwork.physicaldev.g.2017.

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