Dose measurements in intraoral radiography using thermoluminescent dosimeters

7th International Congress of Engineering Physics

物理学;工业技术

Azorín, C.^1 ; Azorín, J.^2 ; Aguirre, F.^2 ; Rivera, T.^1

Centro de Investigatión en Ciencia Aplicada y Tecnología Avanzada, Legaria Instituto Politécnico Nacional, México D.F., Mexico^1

Universidad Autónoma Metropolitana-Iztapalapa, México D.F., Mexico^2

关键词: Dental radiography;    Dose measurement;    LiF:Mg ,Cu ,P;    Me-xico;    Reference levels;    Thermoluminescent dosimeters;    X-ray equipments;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/582/1/012006/pdf
DOI  :  10.1088/1742-6596/582/1/012006

学科分类：工业工程学

来源: IOP

【 摘 要 】

The use of X-ray in medicine demands to expose the patient and the professional to the lowest radiation doses available in agreement with ALARA philosophy. The reference level for intraoral dental radiography is 7 mGy and, in Mexico, a number of examinations of this type are performed annually. It is considered that approximately 25% of all the X-rays examinations carried out in our country correspond to intraoral radiographies. In other hand, most of the intraoral X-ray equipment correspond to conventional radiological systems using film, which are developed as much manual as automatically. In this work the results of determining the doses received by the patients in intraoral radiological examinations made with different radiological systems using LiF:Mg,Cu,P+PTFE thermoluminescent dosimeters are presented. In some conventional radiological systems using film, when films are developed manual or automatically, incident kerma up to 10.61 ± 0.74 mGv were determined. These values exceed that reference level suggested by the IAEA and in the Mexican standards for intraoral examinations.