Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"pixel detector"”.
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A photon counting pixel detector for x-ray imaging
Hybrid semiconductor pixel detector technology is presented in this thesis as an alternative to current imaging systems in medical imaging and synchrotron radiation applications. The technology has been developed from research performed in High Energy Physics, in particular, for the ATLAS …
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Development of Small-Pitch, Thin 3D Sensors for Pixel Detector Upgrades at HL-LHC
… by 2024, impose a complete swap of current 3D detectors with more radiation hard sensor design, able to withstand very large particle fluences up to 2×1016 cm-2 1-MeV equivalent neutrons. The extreme luminosity conditions and related issues in occupancy and radiation hardness lead to very dense …
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Development of enhanced double-sided 3D radiation sensors for pixel detector upgrades at HL-LHC
… one of the most promising approaches to silicon detectors, is the so called 3D technology. This technology realizes columnar electrodes penetrating vertically into the silicon bulk thus decoupling the active volume from the inter-electrode distance. 3D detectors were first proposed by S. Parker …
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Development of a new silicon pixel detector with 10 ps time resolution for high luminosity future experiments
… the requirements of the LHCb VErtex LOcator detector for the Upgrade II, planned to face the high luminosity conditions. These requirements are a time resolution better than 50 ps per hit, a spatial resolution of the order of 10–20 μm and a radiation hardness up to 6·10^16 1 MeV n_eq/cm^2. In …
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Development of GaAs pixel detectors
… requirements on the two general purpose detectors: fast signal formation and readout, a high density of channels and radiation hardness of sensors and electronics are essential. Semiconductor pixel detectors, installed closest to the beam pipe in the innermost part of the tracking …
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Analysis of 3D silicon pixel vertex detector damage effects due to radiation levels present in the LHC at CERN
… of charged particles is needed. Solid state detectors achieve the high precision necessary to provide track and vertex reconstruction of the particles that traverse them, but tracking performance begins to deteriorate at fluxes of radiation around 10¹⁴ - 10¹⁵ hadrons/cm 2. These radiation …
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PROOF-OF-PRINCIPLE TEST FOR AN EXPERIMENT FOR SHORT-LIVED PARTICLE DIPOLE MOMENTS AT LHC
… of the ALADDIN tracking system and assessing detector performance. A significant portion of the document discusses the TWOCRYST proof-of-principle experiment, which is installed in LHC Interaction Region 3. This experiment is designed to demonstrate double channelling with multi-TeV protons. …
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A data acquisition and analysis system for use with multi-electrode arrays in the development of a retinal prosthesis for degenerative retinal diseases
… to be produced by our group. It incorporates a pixel detector, biologically-inspired processing and stimulation electronics. The development of the biologically inspired processing model is presented within this thesis.
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Analysis of petal longterm test data for the CMS-experiment
… the experiments at the LHC is the multipurpose detector CMS (Compact Muon Solenoid). A key part of the CMS detector is the tracking system, that is composed of a silicon pixel detector forming the innermost part, surrounded by silicon strip sensors. Currently, it is the largest silicon detector …
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Development and characterisation of Monolithic Active Pixel Sensor prototypes for the upgrade of the ALICE Inner Tracking System
… reason, an upgrade strategy for several ALICE detectors is being pursued. In particular, it is foreseen to replace the Inner Tracking System (ITS) by a new detector which will significantly improve the tracking and vertexing capabilities of ALICE in the upgrade scenario. The new ITS will have a …
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Si-based Germanium Tin Photodetectors for Short-Wave and Mid-Wave Infrared Detections
… as silicon and germanium are used to realize detectors in the visible and near infrared region, they are not the efficient approach for imaging system in the short-wave infrared detection range and beyond due to bandgap limit. On the other hand, this market is heavily relied upon mature …
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Charged Particle Multiplicity and Open Heavy Flavor Physics in Relativistic Heavy Ion Collisions at the LHC
… at the LHC energy and = 2.76 TeV with the ATLAS detector. For the charged particle measurements, charged particles are reconstructed with two algorithms (2-point "tracklet" and full tracking) from the pixel detector only. Measurements are presented of the per-event charged particle density …
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Characterization of the CMS pixel detectors
… to provide guidance for future physics. The pixel detector system makes up the innermost part of the CMS experiment, which is one of the two general purpose detectors at the LHC. The main tasks of the system are vertex detection and flavor tagging. The high luminosity and the high particle …
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Heavy-flavour production at forward rapidity as a function of charged-particle multiplicity with ALICE at the LHC
… Experiment) at the LHC. ALICE is a dedicated detector optimized to study ultra-relativistic heavy-ion collisions in which the Quark-Gluon Plasma (QGP - the state of matter which prevailed in the Early Universe shortly after the Big Bang) is created. ALICE also studies proton-proton (pp) and …