DIN 6868-15:2015-06

This standard applies for the performance of constancy testing according to the Röntgenverordnung (RöV) (German X-ray Ordinance) of X-ray installations for dental radiographic equipment for digital cone-beam computed tomography. This standard does not apply for equipment working according to the tomosynthesis principle and which create picture volumes from a very low number of projection images and incomplete angle information (< 180°). The standard specifies methods to check the constancy of decisive performance characteristics. It may be concluded from the result whether the characteristics of the imaging device have remained constant. The characteristics at the time of the acceptance test are taken as the basis. DIN 6868-161 applies for acceptance testing. The standard contains image quality assuring specifications according to the German X-ray Ordinance (RöV) of 1987-01-08 in the version of the announcement of 2003-04-30, requirements according to § 16 and serves in connection with the Sachverständigen-Prüfrichtlinie (SV-RL) (testing guidelines for experts) and the Qualitätssicherungsrichtlinie (QS-RL) (quality assurance guidelines) for the fulfilment of national requirements in radiation protection. This standard has been prepared by Working Committee NA 080-00-06 AA "Bildgebende Systeme" ("Imaging systems") of the NAR in collaboration with the Working Committee NA 080-014-00-08 "Röntgendiagnostik" ("Radiological diagnostics").