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Updated: Oct 7, 2025

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
Published on: February 20, 2021
ASSESSMENT OF OCCUPATIONAL RADIATION DOSE FROM CAMERA MODEL INTRAORAL HANDHELD X-RAY DEVICE WITHOUT STRAY RADIATION
Mahkameh Moshfeghi1, Yaser Safi1, Alireza Afzalan2
1Associate Professor, Department of Oral and Maxillofacial Radiology, School of Dentistry, Shahid Beheshti University Of Medical Sciences, Tehran 1983969411, Iran.
Abstract:
The aim of this study was to assess the occupational exposure from portable X-ray device without stray radiation protection shield measured using thermoluminescent dosemeters (TLDs). A total of 108 intraoral periapical radiographies of six sextants were performed. The TLDs were located on right index finger and left palm, between the pupils of the eyes at the edges of the Nasion point, Manubrium of Sternum bone and genital area. The detected mean doses per procedure were 70, 99, 60, 51, 51 and 58 μSv in the right finger, left palm, level of the Nasion point, under left clavicle, above the sternum manubrium and at the gonad area, respectively. Maximum number of radiographic images that the operator is allowed to perform depends on eye exposure and in accordance with International Commission on Radiological Protection is 0.16 (0.12-0.23) per hour or 1.28 (0.96-1.84) per day.
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Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...