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Updated: Jun 8, 2026

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
Published on: February 20, 2021
[Diagnostic reference levels for X-ray examinations: update 2010]
R Veit1, R Guggenberger, D Nosske
1Abteilung für Medizinischen und Beruflichen Strahlenschutz, Fachbereich Strahlenschutz und Gesundheit, Bundesamt für Strahlenschutz , Ingolstädter Landstr. 1, 85764, Neuherberg, Deutschland. rveit@bfs.de
Abstract:
The diagnostic reference levels (DRLs) for diagnostic and interventional X-ray procedures established in 2003 were updated in July 2010 by the German Federal Office for Radiation Protection on the basis of mean patient doses in X-ray facilities surveyed by the so-called competent medical expert offices. The new DRLs are immediately in force and in most cases markedly below the respective old levels. Moreover DRLs for pediatric CT examinations have been newly introduced. This article briefly summarizes the concept of DRLs and the essential changes.
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