DIN EN IEC 61674:2023-03-Draft: Medical electrical equipment - Dosimeters with ionization chambers and/or semiconductor detectors as used in X-ray diagnostic imaging (IEC/CDV 61674:2023); German and English version prEN IEC 61674:2023

This document was prepared by Subcommittee 62C "Equipment for radiotherapy, nuclear medicine and radiation dosimetry" of Technical Committee 62 "Electrical equipment in medical practice". The responsible German standardisation body is the Working Committee NA 080-00-01 AA "Dosimetry" of the DIN Standards Committee Radiology (Normenausschuss Radiologie: NAR). This document specifies the performance and some related design requirements for diagnostic dosimeters intended for the measurement of air kerma, kerma length product or air kerma power in photon radiation fields used in medical X-ray imaging, such as radiography, radioscopy and computed tomography (CT), for X-rays with generation potentials in the range of 20 kV to 150 kV. This document applies to the performance of dosimeters with vented ionisation chambers and/or semiconductor detectors as used in X-ray diagnostics. Compared to DIN EN 61674:2015-11, the following changes were made: a) the scope was adapted; b) subsection 4.4.2.2 Analogue indicators was deleted; c) subsection 5. 6 Zero setting of the indication for AIR-CONDITIONER and AIR-CONDITIONER-LENGTH PRODUCT was deleted; d) Subsection 5.7 Effects of LEAK STREAM was deleted; e) Subsection 6.3.2 IONISATION CHAMBER - recombination losses was deleted; f) the document was editorially revised.