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Medical electrical equipment - X-ray tube assemblies for medical diagnosis - Focal spot dimensions and related characteristics
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STANDARD published on 17.12.2020
Designation standards: IEC 60336-ed.5.0
Publication date standards: 17.12.2020
SKU: NS-1012541
The number of pages: 90
Approximate weight : 301 g (0.66 lbs)
Country: International technical standard
Category: Technical standards IEC
IEC 60336:2020 applies to FOCAL SPOTS in medical diagnostic X-RAY TUBE ASSEMBLIES for medical use, operating at X-RAY TUBE VOLTAGES up to and including 150 kV. This document describes the test methods employing digital detectors for determining: a) FOCAL SPOT dimensions in terms of NOMINAL FOCAL SPOT VALUES, ranging from 0,1 to 3,0; b) LINE SPREAD FUNCTIONS; c) one-dimensional MODULATION TRANSFER FUNCTIONS; d) FOCAL SPOT PINHOLE RADIOGRAMS, and the means for indicating compliance. In informative annexes, STAR PATTERN imaging and BLOOMING VALUE are described. IEC 60336:2020 cancels and replaces the fourth edition published in 2005. This edition constitutes a technical revision. The significant changes of this fifth edition with respect to the previous edition are detailed in Clause E.6. These changes are: a) introduction of digital detectors and discretization errors; b) fewer normative requirements; c) support for both SLIT CAMERA and PINHOLE CAMERA; d) reintroduction of distorted (skewed) FOCAL SPOT; e) keeping of STAR PATTERNS and BLOOMING VALUE as informative. The contents of the corrigendum of June 2022 have been included in this copy. LIEC 60336:2020 s’applique aux FOYERS des GAINES EQUIPEES a usage medical, pour diagnostic medical, fonctionnant a des POTENTIELS D’ACCELERATION DE TUBES RADIOGENES inferieurs ou egaux a 150 kV. Le present document decrit les methodes d’essai ayant recours a des detecteurs numeriques dans la determination des: a) dimensions des FOYERS en matiere de VALEURS NOMINALES DE FOYER, variant de 0,1 a 3,0; b) FONCTIONS DE DISTRIBUTION LINEAIRE; c) FONCTIONS DE TRANSFERT DE MODULATION suivant une dimension; d) RADIOGRAMMES A STENOPE, et des moyens d’indiquer la conformite. Les annexes informatives decrivent la MIRE ETOILE et la VALEUR DE DISPERSION. LIEC 60336:2020 annule et remplace la quatrieme edition parue en 2005. Cette edition constitue une revision technique. Les modifications majeures presentees dans cette cinquieme edition par rapport a l’edition precedente sont enumerees dans l’Article E.6. Ces modifications sont: a) introduction des detecteurs numeriques et des erreurs de discretisation; b) exigences normatives moins nombreuses; c) informations d’accompagnement relatives aux CAMERAS A FENTE et aux CAMERAS A STENOPE; d) reintroduction de FOYER deforme (non lineaire); e) conservation des MIRES ETOILES et de la VALEUR DE DISPERSION comme documents informatifs. Le contenu du corrigendum de juin 2022 a ete pris en consideration dans cet exemplaire.
Corrigendum 1 - Medical electrical equipment - X-ray tube assemblies for medical diagnosis - Focal spot dimensions and related characteristics
(Corrigendum 1 - Appareils electromedicaux - Gaines equipees pour diagnostic medical - Dimensions des foyers et caracteristiques connexes)
Correction published on 21.6.2022
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