EN 16016-3:2011
(Main)Non destructive testing - Radiation methods - Computed Tomography - Part 3: Operation and interpretation
Non destructive testing - Radiation methods - Computed Tomography - Part 3: Operation and interpretation
This European Standard specifies an outline of the operation of a CT system, and the interpretation of the results in order to provide the user with technical information to select suitable parameters.
Zerstörungsfreie Prüfung - Durchstrahlungsverfahren - Computertomographie - Teil 3: Durchführung und Auswertung
Dieses Dokument legt einen Überblick über den Betrieb eines CT Systems und die Auswertung der Ergebnisse fest, um dem Anwender technische Informationen zur Auswahl geeigneter Parameter zur Verfügung zu stellen.
Essais non destructifs - Méthodes par rayonnements - Tomographie numérisée - Partie 3: Fonctionnement et interprétation
La présente Norme européenne fournit une présentation générale du fonctionnement d’un système TI et de
l’interprétation des résultats afin de donner à l’utilisateur des informations techniques pour sélectionner les
paramètres adaptés.
Neporušitveno preskušanje - Sevalna metoda - Računalniška tomografija - 3. del: Delovanje in razlaga
Ta evropski standard opisuje delovanje sistema računalniške tomografije (CT) in razlago rezultatov z namenom zagotavljanja tehničnih podatkov uporabniku za izbiro ustreznih parametrov.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Zerstörungsfreie Prüfung - Durchstrahlungsverfahren - Computertomographie - Teil 3: Durchführung und AuswertungEssais non destructifs - Moyens utilisant les rayonnements - Tomographie informatisée - Partie 3: Fonctionnement et interprétationNon destructive testing - Radiation Methods - Computed Tomography - Part 3: Operation and interpretation19.100Neporušitveno preskušanjeNon-destructive testingICS:Ta slovenski standard je istoveten z:EN 16016-3:2011SIST EN 16016-3:2012en,fr,de01-februar-2012SIST EN 16016-3:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16016-3
August 2011 ICS 19.100 English Version
Non destructive testing - Radiation methods - Computed Tomography - Part 3: Operation and interpretation
Essais non destructifs - Méthodes par rayonnements - Tomographie numérisée - Partie 3: Fonctionnement et interprétation
Zerstörungsfreie Prüfung - Durchstrahlungsverfahren - Computertomographie - Teil 3: Durchführung und Auswertung This European Standard was approved by CEN on 29 July 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16016-3:2011: ESIST EN 16016-3:2012
Spatial resolution measurement using line pair gauges . 23A.1Line pair gauges . 23A.2Principle of measurement . 24Bibliography . 27 SIST EN 16016-3:2012
4.2 CT system set-up 4.2.1 General The CT system set-up is oriented towards the requirements for the given task. The required spatial resolution (taking into account the tube focal spot size), contrast resolution, voxel size and the CT image quality can be derived from these requirements. The quality of the CT image is determined by different parameters, which under certain circumstances counteract each other. In the following, system parameters are described and information is provided on setting up a CT system for inspection. Due to the interactions of the different system parameters, it may be necessary to run through the set-up steps several times in order to acquire optimal data. The optimal energy is that which gives the best signal-to-noise ratio and not necessarily that which gives the clearest radiograph (the dependency of the detector efficiency on the energy is to be taken into account). However, in order to differentiate between materials of different chemical composition it may be necessary to adjust the accelerating voltage to maximise the difference in their linear attenuation coefficients. 4.2.2 Geometry The source-detector and source-object distances and thus also the beam angle used should be specified. In order to achieve high resolutions, the projection can be magnified onto the detector. The magnification is equal to the ratio of the source-detector distance to the source-object distance. Increasing source-detector SIST EN 16016-3:2012
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