Search results for "US imaging"

showing 4 items of 4 documents

Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment

2013

NEXT-100 experiment aims at searching the neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon, with 90% isotopic enrichment. The experiment will take place at the Laboratorio Subterraneo de Canfranc (LSC), Spain. NEXT-100 uses electroluminescence (EL) technology for energy measurement with a resolution better than 1% FWHM. The gaseous xenon in the TPC additionally allows the tracks of the two beta particles to be recorded, which are expected to have a length of up to 30 cm at 10 bar pressure. The ability to record the topological signature of the beta beta 0 nu events provides a powerful background rejection factor for the bet…

Enginyeria -- InstrumentsMECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURASBar (music)Tracking (particle physics)7. Clean energy01 natural sciencesEngineering instrumentsTECNOLOGIA ELECTRONICAchemistry.chemical_compoundData acquisitionSilicon photomultiplierOptics0103 physical sciencesPhysical instrumentsVisible and IR photons (solid-state)010306 general physicsInstrumentationPhoton detectors for UVMathematical PhysicsDetectors de radiacióPhysics010308 nuclear & particles physicsDynamic rangebusiness.industryTime projection Chambers (TPC)Electrical engineeringTetraphenyl butadieneFísicaTracking systemDetectorsGaseous imaging and tracking detectorschemistryNuclear countersParticle tracking detectors (Solid-state detectors)Física -- InstrumentsbusinessDark current
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The upgrade of the ALICE TPC with GEMs and continuous readout

2020

Journal of Instrumentation 16(03), P03022 (2021). doi:10.1088/1748-0221/16/03/P03022

Physics - Instrumentation and DetectorsComputer sciencePhysics::Instrumentation and DetectorsFOS: Physical sciences61001 natural sciences114 Physical sciences030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicine0103 physical sciencesMicropattern gaseous detectors (MSGC GEM THGEM RETHGEM MHSP MICROPIC MICROMEGAS InGrid etc)Electronicsddc:610Detectors and Experimental TechniquesInstrumentationphysics.ins-detMathematical PhysicsCMOS readout of gaseous detectorsLarge Hadron Collider010308 nuclear & particles physicsbusiness.industryDetectorTime projection Chambers (TPC)Readout electronicsInstrumentation and Detectors (physics.ins-det)ChipUpgradeGaseous imaging and tracking detectorsGas electron multiplierALICE (propellant)businessComputer hardware
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Electron drift properties in high pressure gaseous xenon

2018

[EN] Gaseous time projection chambers (TPC) are a very attractive detector technology for particle tracking. Characterization of both drift velocity and di¿usion is of great importance to correctly assess their tracking capabilities. NEXT-White is a High Pressure Xenon gas TPC with electroluminescent ampli¿cation, a 1:2 scale model of the future NEXT-100detector, which will be dedicated to neutrinoless double beta decay searches. NEXT-White has been operating at Canfranc Underground Laboratory (LSC) since December2016. The drift parameters have been measured using 83mKr for a range of reduced drift ¿elds at two di¿erent pressure regimes, namely 7.2 bar and 9.1 bar. Theresults have been comp…

Physics - Instrumentation and DetectorsPhysics::Instrumentation and DetectorsLibrary scienceFOS: Physical sciencesCharge transport01 natural sciences7. Clean energyElectron driftHigh Energy Physics - ExperimentTECNOLOGIA ELECTRONICAHigh Energy Physics - Experiment (hep-ex)Political science0103 physical sciencesmedia_common.cataloged_instanceEuropean unionNuclear Experiment (nucl-ex)010306 general physicsInstrumentationNuclear ExperimentMathematical Physicsmedia_commonCharge transport and multiplication in gas010308 nuclear & particles physicsEuropean researchMultiplication and electroluminescence in rare gases and liquidsInstrumentation and Detectors (physics.ins-det)Double-beta decay detectorsGaseous imaging and tracking detectorsHigh pressureHigh Energy Physics::ExperimentJournal of Instrumentation
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Segmentation d'images robuste appliqué à l'imagerie par résonance magnétique et l'échographie de la prostate

2012

Prostate segmentation in trans rectal ultrasound (TRUS) and magnetic resonanceimages (MRI) facilitates volume estimation, multi-modal image registration, surgicalplaning and image guided prostate biopsies. The objective of this thesis is to developshape and region prior deformable models for accurate, robust and computationallyefficient prostate segmentation in TRUS and MRI images. Primary contributionof this thesis is in adopting a probabilistic learning approach to achieve soft classificationof the prostate for automatic initialization and evolution of a shape andregion prior deformable models for prostate segmentation in TRUS images. Twodeformable models are developed for the purpose. An…

Tesis i dissertacions acadèmiques616.6[INFO.INFO-OH]Computer Science [cs]/Other [cs.OH]Physics::Medical PhysicsProstate segmentation68Segmentación de la próstataNo english key word[ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathologySegmentació de la próstata616.6 - Patologia del sistema genitourinariImagen de ultrasonidoPas de mots-clés en français[SDV.MHEP] Life Sciences [q-bio]/Human health and pathologyProstate cancerImatge d'ultrasóComputer Science::Other[INFO.INFO-OH] Computer Science [cs]/Other [cs.OH]68 - Indústries oficis i comerç d'articles acabats. Tecnologia cibernètica i automàticaCancer de próstataImatges mèdiquesComputer Science::Computer Vision and Pattern RecognitionImágenes médicasImatge de ressonància magnèticaMRI imagingUS imaging[ INFO.INFO-OH ] Computer Science [cs]/Other [cs.OH]Imagen de resonancia magnéticaMedical imaging[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
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