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Pixel Detector Studies For The Atlas Itk Upgrade For The Hl Lhc
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Book Synopsis Pixel Detector Studies for the ATLAS ITk Upgrade for the HL-LHC by : Silke Möbius
Download or read book Pixel Detector Studies for the ATLAS ITk Upgrade for the HL-LHC written by Silke Möbius and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The integrated luminosity of the Large Hadron Collider (lhc), which is proportional to the number of particles colliding and thus data being collected, is planned to be increased by a factor of 5-7.5 compared to the design luminosity of the lhc by the end of the 2020s. This step is motivated by the potential to measure Standard Model physics processes especially in the top quark and Higgs sector with high precision and discover new physics. However, this upgrade to the High Luminosity-lhc will result in an increased particle density in the experiments, causing a higher hit occupancy in the ...
Book Synopsis Development of Pixel Detector for ATLAS Inner Tracker(ITK) Upgrade at HL-LHC and Searching for the Standard Model Higgs Boson Decay Into B-quark Pair with ATLAS Experiment by : Tasneem Saleem
Download or read book Development of Pixel Detector for ATLAS Inner Tracker(ITK) Upgrade at HL-LHC and Searching for the Standard Model Higgs Boson Decay Into B-quark Pair with ATLAS Experiment written by Tasneem Saleem and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: ATLAS is one of the two main experiments at LHC with the purpose of investigating the microscopic properties of matter to address the most fundamental questions of particle physics. After the achievements of the first years of running, the potential reach for new discoveries and precise measurements at LHC is being extended by pushing further the energy and luminosity frontiers through three upgrades of the accelerator culminating in the High Luminosity LHC (HL-LHC). To fully profit from the increased luminosity, two main upgrades of the ATLAS inner detector are planned. The first upgrade was already completed at the beginning of 2015 with the insertion of the IBL, a fourth pixel layer located at just 3.2 cm from the beam line. In the second major upgrade, foreseen for 2024, the full inner detector will be replaced by a completely new inner tracker fully made of silicon devices to cope with the high particle density and the harsh radiation environment at the HL-LHC, which during its operational period will deliver 3000 fb-1, almost ten times the integrated luminosity of the full LHC program. This thesis addresses the study of new n+-in-p active edge pixel detectors by developing two novel doping profile analysis methods to study the radiation damage effects on the pixel detectors performance. These methods are the 3D sims imaging method and the TLM Method. TCAD simulation has been used to simulate the doping profiles, the electrical behavior and the radiation damage. Validating the simulation models with data have been done. Moreover, clean-room characterization, as well as testbeam measurement have been performed to test the different detector designs. In the second part of the thesis, I discuss the observation of the standard model Higgs boson bb decay mode using the data collected by ATLAS during the LHC Run2 at center-of-mass energy 13 TeV and an integrated luminosity 79.8 fb−1 of a proton-proton collision. I contributed specifically to the search of the standard model Higgs boson in VH(bb) production mode. In the VH(bb) analysis we don't have any channel that considers the tau leptons in the final state. I have performed a feasibility study to verify the gain of using the taus in the analysis. In addition, for the VH(bb) analysis I have worked on the multi-jet background estimation in the 1-lepton channel using the dijet-mass analysis method.
Book Synopsis Studies on Irradiated Pixel Detectors for the ATLAS IBL and HL-LHC Upgrade by :
Download or read book Studies on Irradiated Pixel Detectors for the ATLAS IBL and HL-LHC Upgrade written by and published by . This book was released on 2015 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Pixel Module Assembly Processes for the Phase 2 Upgrade of the ATLAS Detector and Test Beam Measurements with Diamond Pixel Detectors by : Helge Christoph Beck
Download or read book Development of Pixel Module Assembly Processes for the Phase 2 Upgrade of the ATLAS Detector and Test Beam Measurements with Diamond Pixel Detectors written by Helge Christoph Beck and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most powerful machines to study particle physics is the Large Hadron Collider (LHC). Starting in 2024, it will be upgraded to the High Luminosity-LHC (HL-LHC) to deliver even more data to measure with high precision Standard Model (SM) physics processes, and to maximise the potential to discover new physics. Higher luminosity implies a higher radiation environment, which poses challenges to the detectors of the experiments. To deal with radiation damage, pile up, and needed read-out speed, ATLAS will replace its current tracking detector with the new Inner Tracker (ITk). The inne...
Book Synopsis Development of Pixel Detectors for the IBL and HL-LHC ATLAS Experiment Upgrade by : Marta Baselga Bacardit
Download or read book Development of Pixel Detectors for the IBL and HL-LHC ATLAS Experiment Upgrade written by Marta Baselga Bacardit and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Test Beam Studies of Pixel Detector Prototypes for the ATLAS-Experiment at the High Luminosity Large Hadron Collider by : Tobias Bisanz
Download or read book Test Beam Studies of Pixel Detector Prototypes for the ATLAS-Experiment at the High Luminosity Large Hadron Collider written by Tobias Bisanz and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The upgrade of the Large Hadron Collider (LHC) in the mid-2020's to the High Luminosity Large Hadron Collider will provide large amounts of data, enabling precision measurements of Standard Model processes and searches for new physics. This will also maximise the physics potential of the experiments located at the LHC. In order to record the desired integrated luminosity, the ATLAS detector will face challenges regarding the radiation damage, pile-up and amount of data. To cope with those challenges, the entire tracking detector is replaced by the new Inner Tracker, ITk. In order to develop...
Book Synopsis Characterization of a Monolithic Pixel Sensor Prototype in HV-CMOS Technology for the High-luminosity LHC by : Adrian Herkert
Download or read book Characterization of a Monolithic Pixel Sensor Prototype in HV-CMOS Technology for the High-luminosity LHC written by Adrian Herkert and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Large Hadron Collider (LHC) is planned to undergo a major upgrade, called the High-Luminosity LHC (HL-LHC), to fully exploit its physics potential until the end of its operation with an instantaneous luminosity of 5 to 7.5 times the design value (1*10^34 cm^(-2)s^(-1)). Consequently, the LHC experiments have to be upgraded as well (Phase-II upgrade) to be able to cope with the resulting increase in pile-up, data rates, and radiation doses. Therefore, the tracking detector of the ATLAS experiment, the Inner Detector, will be fully replaced by a new all-silicon tracking detector, the Inner Tracker (ITk). While it has been decided that only the baseline design of the pixel part of the ITk will be pursued, which foresees the use of hybrid pixel detectors, it has been worthwhile to study monolithic pixel sensor options as well, whose production is comparatively cost-efficient. Monolithic pixel sensors have recently made their way into particle physics experiments and they were considered as an alternative sensor option for the outermost pixel layer of the ITk. Within the scope of this thesis, a high voltage monolithic active pixel sensor (HV-MAPS) prototype, called ATLASPix_Simple, was characterized and studied regarding its suitability for the use in the ITk.
Book Synopsis Design and Characterization in Depleted CMOS Technology for Particle Physics Pixel Detector by : Siddharth Bhat
Download or read book Design and Characterization in Depleted CMOS Technology for Particle Physics Pixel Detector written by Siddharth Bhat and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ATLAS experiment will start operating at the High Luminosity LHC accelerator (HL-LHC) in 2026 to increase the probability of new discoveries. Depleted CMOS monolithic pixel detector technology has been one of the options considered for the outer layer of an upgraded ATLAS pixel detector and is a high potential technology for future pixel detectors. In this thesis, several prototypes have been developed using different depleted CMOS technologies, for instance, LFoundry (LF) 150 nm, TowerJazz (TJ) 180 nm and austriamicrosystems AG (AMS) 180 nm. In a high-energy environment like HL-LHC, Single Event Upsets (SEU), which become of concern for reliable circuit operation. Several test-chips in AMS, TowerJazz and LFoundry technologies with different SEU tolerant structures have been prototyped and tested. The SEU tolerant structures were designed with appropriate electronics simulations using Computer Aided Design (CAD) tools in order to study the sensitivity of injected charge to upset a memory state. An alternative powering scheme named Serial Powering scheme is foreseen for the future Inner Tracker (ITk) detector of the ATLAS experiment. To meet the requirements ofthe ATLAS experiment to the environment of a pixelated layer in a high radiation collider environment, new developments with depleted CMOS sensors have been made in Shunt-LDO regulator and sensor biasing which are designed in modified TowerJazz 180 nm CMOS imaging technology. In the TowerJazz modified process, two different voltage levels are used for the purpose of sensor depletion. The bias voltages are generated by using a negative charge pump circuit.
Book Synopsis Modelling of CO2 Cooling of the ATLAS ITk Pixel Detector by : Pierre Barroca
Download or read book Modelling of CO2 Cooling of the ATLAS ITk Pixel Detector written by Pierre Barroca and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Large Hadron Collider (LHC) physics program has been extended to the period 2026-2037 to deliver an order of magnitude more of proton-proton collisions compared to end 2023. To sustain the harsh conditions imposed to detectors in this period (radiation, high occupancy), the current ATLAS Inner Detector will be replaced by a new one using the most recent silicon sensor technologies. One of them is the generalization of the cooling with two-phase CO2 flowing in titanium tubes located close to the silicon sensor and associated electronics. The choice of CO2 relies on its most favourable thermo-physical properties in boiling state.The radiation damage during the HL-LHC program will be quite harsh and the engineering of the local supports under such extreme conditions requires a deep understanding of the two-phase behaviour of the CO2 flowing inside the titanium pipes, and a precise modelling of the heat transfer through the mechanical structure.However, the data available on CO2 boiling in channels of small hydraulic diameter (say, below 3 mm) is limited and often affected by too large uncertainties. This enforces the detector designers to include large safety factors and long iterative phases of experimental measurements, which could be sensibly reduced by the availability of reliable models.This thesis starts with a quick description of the ATLAS Upgrade Phase II project, a first outlook on the fundamentals of two-phase cooling technology, widely used to cool particle detectors in high-energy physics (HEP) experiments and discussion about the thermal management requirements of the future ATLAS Pixel Detector. Several custom tools were developed in python language to guide the design and optimisation of the the CO2 cooling system: simulation of heat transfer coefficient (HTC) and frictional pressure drops along evaporators, flow distribution studies in manifolds and calculation of thermal requirements.In a second phase, the document presents the thermal test setup to measure thermal performances of thermal prototypes for the new detector (ITk) as well as the associated simulation based on Finite Element analysis and Heat Transfer Coefficient modelling. A novel fit method was implemented to extract from the measurements the different parameters of the ITk elements (in situ material thermal conductivities, manufacturing variability, HTC...). The results are compared the current CO2 model predictions and the discrepancies discussed. A new set of parameters for the CO2 model was built to improve precisions by factor two on the effective HTC values for the ITk working conditions and integrated in the python modelling tool. Finally, the impact of this work on the design of the Pixel detector is presented.
Book Synopsis Development of a Detector Control System for the Serially Powered ATLAS Pixel Detector at the HL-LHC by : Lukas Püllen
Download or read book Development of a Detector Control System for the Serially Powered ATLAS Pixel Detector at the HL-LHC written by Lukas Püllen and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Depleted CMOS Sensor Development for Pixel Particle Detectors Under High Intensity and High Radiative Dose by : Zongde Chen
Download or read book Depleted CMOS Sensor Development for Pixel Particle Detectors Under High Intensity and High Radiative Dose written by Zongde Chen and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Inner Tracker (ITk) system of the ATLAS experiment will be upgraded for the 2026 High Luminosity Large Hadron Collider (HL-LHC) run. The HL-LHC will operate with a center of mass energy of 14 TeV and a peak instantaneous luminosity five times higher than at present. The increased luminosity will result in roughly ten times higher radiation levels and data rates. To cope with the ATLAS requirements in terms of radiation hardness, readout speed and granularity at the HL-LHC, the replacement of the present ATLAS Inner Tracker (ITk) is needed. Two large-scale depleted CMOS sensors in the 150 nm LF-technology called LF-CPIX and LF-MONOPIX, developed in the framework of the ATLAS Inner Tracker (ITK) upgrade for High Luminosity LHC. The work presented here shows the characterization for these three prototypes, with contributions concerning the setup development, 55Fe and 90Sr source calibration, modifications of the FPGA firmware and development of test programs. A main concern was the investigation on the radiation hardness for both the electronics and the sensor parts. We will show results concerning characterizations for these prototypes in the laboratory performance at CPPM, as well as results in multiple radiation campaigns performed at the 24 GeV IRRAD proton facility at CERN, to study the effects of Non-Ionizing Energy Loss (NIEL) and Total Ionizing Dose (TID) on the prototypes.
Book Synopsis Search for Higgs Boson Decays to Charm Quarks with the ATLAS Experiment and Development of Novel Silicon Pixel Detectors by : Maria Mironova
Download or read book Search for Higgs Boson Decays to Charm Quarks with the ATLAS Experiment and Development of Novel Silicon Pixel Detectors written by Maria Mironova and published by Springer Nature. This book was released on 2023-07-20 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the Higgs boson and its interactions with fermions, as well as the detector technologies used to measure it. The Standard Model of Particle Physics has been a groundbreaking theory in our understanding of the fundamental properties of the universe, but it is incomplete, and there are significant hints which require new physics. The discovery of the Higgs boson in 2012 was a substantial confirmation of the Standard Model, but many of its decay modes remain elusive. This book presents the latest search for Higgs boson decays into c-quarks using a proton-proton collision dataset collected by the ATLAS experiment at the Large Hadron Collider (LHC). This decay mode has yet to be observed and requires advanced machine learning algorithms to identify c-quarks in the experiment. The results provide an upper limit on the rate of Higgs boson decays to c-quarks and a direct measurement of the Higgs boson coupling strength to c-quarks. The book also discusses the future of particle physics and the need for significant improvements to the detector to cope with increased radiation damage and higher data rates at the High-Luminosity LHC. It presents the characterization of the ATLAS pixel detector readout chip for the inner detector upgrade (ITk). The chip was subjected to irradiations using X-rays and protons to simulate the radiation environment at the HL-LHC. The tests showed that all readout chip components, including the digital logic and analogue front-end, are sufficiently radiation-tolerant to withstand the expected radiation dose. Finally, this book describes monolithic pixel detectors as a possible technology for future pixel detectors. This book is ideal for individuals interested in exploring particle physics, the Higgs boson, and the development of silicon pixel detectors.
Book Synopsis Production, Integration and Commissioning of the ATLAS Insertable B-Layer and Test Beam Studies of New Pixel Technologies for the HL-LHC by : Javier Bilbao De Mendizabal
Download or read book Production, Integration and Commissioning of the ATLAS Insertable B-Layer and Test Beam Studies of New Pixel Technologies for the HL-LHC written by Javier Bilbao De Mendizabal and published by . This book was released on 2016 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Radiation Hard Pixel Modules Employing Planar N-in-p Silicon Sensors with Active Edges for the ATLAS Detector at HL-LHC by :
Download or read book Development of Radiation Hard Pixel Modules Employing Planar N-in-p Silicon Sensors with Active Edges for the ATLAS Detector at HL-LHC written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Novel Silicon Detector Technologies for the HL-LHC ATLAS Upgrade by : Emanuele Cavallaro
Download or read book Novel Silicon Detector Technologies for the HL-LHC ATLAS Upgrade written by Emanuele Cavallaro and published by . This book was released on 2018 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: El Large Hadron Collider (LHC) en la Organización Europea para la Investigación Nuclear (CERN), Ginebra, interrumpirá su operación en 2023 para ser mejorado a High Luminosity LHC (HL-LHC) y proporcionar colisiones entre protones con una energı́a en el centro de masa de √s = 14 TeV con una luminosidad de 1035 cm−2 s−1. ATLAS es uno de los experimentos alojados en el LHC que tendrá que ser mejorado para cumplir los nuevos requisitos impuestos por la mayor luminosidad. Las obras de mejora de ATLAS prevén la sustitución del Inner Detector por un detector de trazas interamente de silicio, el Inner Tracker (ITk), con una granularidad más pequeña y una mayor resistencia a la radiación, y la introducción del High Granularity Timing Detector (HGTD), que proporcionará información temporal de las trazas y de los vértices. Combinando las medidas de ITk y HGTD será posible resolver vértices cercanos en el espacio pero con suficiente separación temporal, lo cual mejora las prestaciones de ATLAS. En esta tesis se investigan dos nuevas tecnologı́as de detectores de silicio para aplicaciones en el HGTD y el ITk, la tecnologı́a de Low Gain Avalanche Detector (LGAD) y la de HV-CMOS. La tecnologı́a LGAD consiste en detectores planares de silicio n-on-p con un implante altamente dopado de tipo p debajo del electrodo de tipo n. Originalmente fue desarrollada para detectores de trazas resistentes a la radiación, pero la segmentación del electrodo demostró afectar al mecanismo de multiplicación y no se ha observado ganancia en los primeros dispositivos. Por otro lado, detectores LGAD delgados han mostrado una resolución temporal de aproximadamente 30 ps y fueron elegidos como de base para los sensores del HGTD. Estudios de sensores LGAD, antes y después de la irradiación, se realizaron por primera vez en el contexto de esta tesis. La tecnologı́a HV-CMOS originalmente aspriaba a producir sensores con pı́xel activo, con la ventaja, en comparación con los dispositivos hı́bridos estándar, de poder optar por el acoplamiento capacitivo. Sin embargo, durante el proceso de IyD, resultó claro que los dispositivos monolı́ticos en tecnologı́a HV-CMOS ofrecen las ventajas más prometedoras: una moderada resistencia a la radiación y la reducción de costos. Esta tesis incluye la caracterización de la primera muestra a escala completa de un chip HV-CMOS para el experimento ATLAS. Actualmente, esta tecnologı́a se tiene en cuenta como una opción de inserción para la capa externa del detector de pı́xeles del ITk.
Book Synopsis Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 by : Zhen-An Liu
Download or read book Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 written by Zhen-An Liu and published by Springer. This book was released on 2018-08-07 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: These two volumes present the proceedings of the International Conference on Technology and Instrumentation in Particle Physics 2017 (TIPP2017), which was held in Beijing, China from 22 to 26 May 2017. Gathering selected articles on the basis of their quality and originality, it highlights the latest developments and research trends in detectors and instrumentation for all branches of particle physics, particle astrophysics and closely related fields. This is the second volume, and focuses on the main themes Astrophysics and space instrumentation, Front-end electronics and fast data transmission, Trigger and data acquisition systems, Machine detectors, Interfaces and beam instrumentation, Backend readout structures and embedded systems, Medical imaging, and Security & other applications. The TIPP2017 is the fourth in a series of international conferences on detectors and instrumentation, held under the auspices of the International Union of Pure and Applied Physics (IUPAP). The event brings together experts from the scientific and industrial communities to discuss their current efforts and plan for the future. The conference’s aim is to provide a stimulating atmosphere for scientists and engineers from around the world.
Book Synopsis Search for Boosted Higgs Boson and Other Resonances Decaying Into B-quark Pairs Using the ATLAS Detector and Studies of CMOS Pixel Sensors for the HL-LHC by : Francesco Armando Di Bello
Download or read book Search for Boosted Higgs Boson and Other Resonances Decaying Into B-quark Pairs Using the ATLAS Detector and Studies of CMOS Pixel Sensors for the HL-LHC written by Francesco Armando Di Bello and published by . This book was released on 2019 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
