Dose evaluation in paediatric radiology and adult bone densitometry examinations
Authors: Azevedo, J. P. A.; de Oliveira, M. G.; Cunha, C. J.; Valerio, M. E. G.; Souza, D. N.
Source: Radiation Protection Dosimetry, Volume 120, Numbers 1-4, September 2006 , pp. 91-94(4)
Publisher: Oxford University Press
Abstract:Dose measurements are acknowledged to be a vital part of the quality assurance process in diagnostic radiology, and the use of thermoluminescence dosemeters (TLDs) is a recommended method of entrance dose evaluation. Measurement of doses in radiographic examinations is widely adopted in clinical practice for adults as well as for children. Phantoms can be used to simulate different parts of the body, depending on the materials used to build them. In this work two different sets of phantoms have been prepared with acrylic blocks. The first set was used to simulate children of different ages. The second set was used to simulate the adult spine. The dosimetric measurements have been carried out using TLD and an ionising chamber. Measurements were performed in three X-ray equipments in Aracaju, Brazil. The entrance, half thickness and exit surface doses were analysed.
Document Type: Research Article
Publication date: September 2006
- RPD publishes peer-reviewed papers covering all aspects of personal and environmental dosimetry and monitoring for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring and accident dosimetry and dosimetry related to the protection of patients.