1. Diagnostic radiology physics: a handbook for teachers and students,2014
2. Radiation protection No 162: Criteria for acceptability of medical radiological equipment used in diagnostic radiology, nuclear medicine and radiotherapy;European Commission,2012
3. Radiation protection No 172: Cone beam CT for dental and maxillofacial radiology;European Commission,2012
4. HPA-CRCE-010: guidance on the safe use of dental cone beam CT equipment;Health Protection Agency,2010
5. Deutsches Institut für Normung.DIN 6868-161: Image quality assurance in X-ray departments - Part 161: RöV acceptance testing of dental radiographic equipment for digital cone beam computed tomography. English translation of DIN 6868-161:2013-01. Berlin: Deutsches Institut für Normung; 2016. Original and English translation available at https://www.beuth.de/en/standard/din-6868-161/164214522.