Search results for "Scattering radiation"

showing 2 items of 2 documents

Using synchrotrons and XFELs for time-resolved X-ray crystallography and solution scattering experiments on biomolecules

2015

International audience; Time-resolved structural information is key to understand the mechanism of biological processes, such as catalysis and signalling. Recent developments in X-ray sources as well as data collection and analysis methods are making routine time-resolved X-ray crystallography and solution scattering experiments a real possibility for structural biologists. Here we review the information that can be obtained from these techniques and discuss the considerations that must be taken into account when designing a time-resolved experiment.

NanotechnologyElectrons010402 general chemistryCrystallography X-Ray01 natural sciencesCatalysi03 medical and health sciencesStructural BiologyScattering radiationHumansScattering RadiationStructural DynamicMolecular BiologyAnalysis method030304 developmental biologychemistry.chemical_classificationPhysics[PHYS]Physics [physics]0303 health sciencesScatteringBiomoleculeLasersReaction TriggeringSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)0104 chemical sciencesSolutionschemistryX-ray crystallographyAtomic physicsStructural Biology; Structural Dynamics; Catalysis; Reaction TriggeringSynchrotronsCurrent Opinion in Structural Biology
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Artefacts in CBCT: a review

2011

Artefacts are common in today's cone beam CT (CBCT). They are induced by discrepancies between the mathematical modelling and the actual physical imaging process. Since artefacts may interfere with the diagnostic process performed on CBCT data sets, every user should be aware of their presence. This article aims to discuss the most prominent artefacts identified in the scientific literature and review the existing knowledge on these artefacts. We also briefly review the basic three-dimensional (3D) reconstruction concept applied by today's CBCT scanners, as all artefacts are more or less directly related to it.

medicine.medical_specialtyCone beam computed tomographyComputer scienceMetal artefactImage processingReviewImaging Three-DimensionalScattering radiationImage Processing Computer-AssistedmedicineHumansScattering RadiationRadiology Nuclear Medicine and imagingMedical physicsComputer visionGeneral DentistryCone beam ctPhantoms Imagingbusiness.industryGeneral MedicineCone-Beam Computed TomographyModels TheoreticalRadiographic Image EnhancementOtorhinolaryngologyArtificial intelligenceArtifactsbusinessAlgorithmsDentomaxillofacial Radiology
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