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Updated: Apr 16, 2026

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
Published on: February 20, 2021
Dosimetry and image quality assessment in a direct radiography system
Bruno Beraldo Oliveira1, Marcio Alves de Oliveira2, Lucas Paixão1
1Masters, Fellow PhD degree, Course of Science and Technology of Radiations, Minerals and Materials - Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/ CNEN), Belo Horizonte, MG, Brazil.
Objective:
To evaluate the mean glandular dose with a solid state detector and the image quality in a direct radiography system, utilizing phantoms.
Materials And Methods:
Irradiations were performed with automatic exposure control and polymethyl methacrylate slabs with different thicknesses to calculate glandular dose values. The image quality was evaluated by means of the structures visualized on the images of the phantoms.
Results:
Considering the uncertainty of the measurements, the mean glandular dose results are in agreement with the values provided by the equipment and with internationally adopted reference levels. Results obtained from images of the phantoms were in agreement with the reference values.
Conclusion:
The present study contributes to verify the equipment conformity as regards dose values and image quality.
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