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IEC 61674-ed.3.0
Medical electrical equipment - Dosimeters with ionization chambers and/or semiconductor detectors as used in X-ray diagnostic imaging
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STANDARD published on 9.7.2024
The information about the standard:
Designation standards: IEC 61674-ed.3.0
Publication date standards: 9.7.2024
SKU: NS-1189468
The number of pages: 75
Approximate weight : 225 g (0.50 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 61674-ed.3.0 :
IEC 61674:2024 specifies the performance and some related constructional requirements of DIAGNOSTIC DOSIMETERS intended for the measurement of AIR KERMA, AIR KERMA LENGTH PRODUCT or AIR KERMA RATE, in photon radiation fields used in medical X-ray imaging, such as RADIOGRAPHY, RADIOSCOPY and COMPUTED TOMOGRAPHY (CT), for X-RADIATION with generating potentials in the range of 20 kV to 150 kV. This document is applicable to the performance of DOSIMETERS with VENTED IONIZATION CHAMBERS and/or SEMICONDUCTOR DETECTORS as used in X-ray diagnostic imaging. IEC 61674:2024 cancels and replaces the second edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) for mammography, the manufacturer specifies the REFERENCE VALUE for the RADIATION QUALITY; b) for mammography, the manufacturer provides the MINIMUM RATED RANGE of RADIATION QUALITIES for the compliance test on energy dependence of response; c) the compliance test for analogue displays was removed; d) the compliance tests for range reset, the effect of leakage and recombination losses were removed. These tests are already covered by the test on linearity and cannot be conducted for modern devices. The estimation of COMBINED STANDARD UNCERTAINTY was changed accordingly; e) the compliance test for mains rechargeable and battery-operated dosimeters were updated for modern devices LIEC 61674:2024 specifie les exigences de performance, et quelques exigences de construction associees, des dosimetres de radiodiagnostic destines au mesurage du kerma dans lair, du produit kerma dans l’air longueur ou du debit de kerma dans l’air, dans des champs de rayonnement de photons utilises en imagerie medicale a rayonnement X, telle que la radiographie, la radioscopie et la tomodensitometrie (CT), pour des rayonnements X dont les potentiels se situent dans la plage comprise entre 20 kV et 150 kV. Le present document est applicable a la performance des dosimetres a chambres d’ionisation ouvertes et/ou a detecteurs semiconducteurs utilises en imagerie de diagnostic a rayonnement X. LIEC 61674:2024 annule et remplace la deuxieme edition de l’IEC 61674 parue en 2012. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) pour la mammographie, le fabricant specifie la valeur de reference pour la qualite de rayonnement; b) pour la mammographie, le fabricant fournit le domaine assigne minimal des qualites de rayonnement pour l’essai de conformite pour la dependance de la reponse en energie; c) l’essai de conformite pour les affichages analogiques a ete supprime; d) les essais de conformite relatifs a la remise a zero dans les plages, a l’effet du courant de fuite et aux pertes de recombinaison ont ete supprimes. Ces essais sont deja couverts par l’essai de linearite et ne peuvent pas etre realises sur les dispositifs modernes. L’estimation de l’incertitude normalisee combinee a ete modifiee en consequence; e) l’essai de conformite pour les dosimetres fonctionnant sur batterie rechargeable par le reseau a ete mis a jour pour les dispositifs modernes.
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