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First implementation of quality control procedures on selected X-ray machines in South of Benin

Soglo Tino Romeo, Inkoom Stephen, Hasford Francis, Sosu Edem K., Biaou Olivier

Polish Journal of Medical Physics and Engineering

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2024

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Vol. 30, Iss.1

36--43

EN

Introduction: The use of X-ray equipment for medical diagnostic radiography procedures has increased due to advances and complexity of radiological procedures. Achieving good image quality while keeping exposure of workers, public and patient exposure to an acceptable level has become a prerequisite for the radiology department in order to comply with best international practices. The aim of this study was to undertake quality control measurement of seven (7) diagnostic radiography equipment in the south of Benin, the first of its kind. Material and methods: Multifunction detector (Piranha) and beam alignment test tool were used to perform quality control tests on seven (7) X-ray units. The method used as well as the interpretation of the results was based on the American Association of Physicists in Medicine (AAPM), United States Food and Drug Administration (FDA), Healing Arts Radiation Protection (HARP), Institute of Physics and Engineering in Medicine (IPEM), International Atomic Energy Agency (IAEA) and Canadian Safety code 35 (S.C 35) recommendations. Results: The quality control results showed that all X-ray equipment investigated were within standard limits for accuracy of exposure time below 10 ms; reproducibility of kVp, exposure time and dose output; specific dose-kVp2 linearity; and specific dose-mAs linearity. Five (5) out of seven (7) diagnostic X-ray machines passed quality control tests such as X- ray beam alignment, exposure time above 10 ms and kVp accuracy. One (1) X-ray machine failed the quality control test of beam filtration at 70 kVp and above. Conclusions: The findings of this study have provided baseline data for other radiology departments to embark on similar QA/QC activities, and also explore options for optimization of patient dose. However, there is a need to extend the study to cover more diagnostic X-ray machines throughout the country. It is anticipated that this would ultimately assist in improving radiation protection and safety during medical diagnostic radiological procedures.

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Analysis of the state of the art on non-intrusive object-screening techniques

Mamchur Dmytro, Peksa Janis, Le Clainche Soledad, Vinuesa Ricardo

Przegląd Elektrotechniczny

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2022

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R. 98, nr 2

168--173

EN

The paper is devoted to an analysis of the modern methods and techniques used for non-intrusive object screening. First, currently used technology and the principle of equipment operation are described. Next, the ways for improving the reliability and efficiency of the screening process and ways for its automation are indicated. Finally, a schematic of an automated screening system that uses additional sensors and implements AI-based analysis for automatic detection and distinguishing between legal, illegal and illicit items inside the object under inspection is proposed.

PL

Artykuł poświecony jest analizie nowoczesnych metod i technik stosowanych w nieinwazyjnej detekcji obiektu. Omówione zostały obecnie używane metody detekcji, a następnie wskazano na możliwości poprawy efektywności i wiarygodności tych metod poprzez wprowadzenie automatyzacji procesów automatyzacji. W końcu pokazano schemat systemu automatycznej inspekcji, w którym wykorzystano dodatkowe czujniki oraz elementy sztucznej inteligencji, pozwalające na rozróżnianie legalnych i nielegalnych rzeczy w obiekcie poddanemu inspekcji.

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Pomiar czasu ekspozycji w miernikach promieniowania rentgenowskiego

Urban Arkadiusz, Czubla Albin, Knyziak Adrian

Metrologia i Probiernictwo : biuletyn Głównego Urzędu Miar

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2020

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nr 1 (24)

15--20

PL

W artykule opisano problematykę pomiarów przedziałów czasu równych czasowi ekspozycji promieniowania X. Pokazano zależność niepewności pomiaru od metody pomiarowej oraz od sposobu działania źródła promieniowania rentgenowskiego. Przedstawiono wpływ zakresu przedziału czasu mierzonego przez miernik na błąd pomiaru.

EN

The main idea of the article is a description of problems of X-ray exposure time measurement. The content describes two types of X-ray machines. Among the two X-ray machine types, continuous type with shutter is more suitable for long time measurement, and pulse type is better for short time measurements. The differences between mode of operation of different X-ray sources and it’s impact on uncertainty of measurement of exposure time are presented. It also discusses the impact of different resolution settings of device under calibration on uncertainty measurement.

4

Wzorcowanie funkcji pomiaru czasu ekspozycji w miernikach promieniowania rentgenowskiego

Urban Arkadiusz, Czubla Albin, Knyziak Adrian

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

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2019

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Nr 66

91--94

PL

W artykule opisano problematykę pomiarów przedziałów czasu równych czasowi ekspozycji promieniowania X. Pokazano zależność niepewności pomiaru od metody pomiarowej oraz od sposobu działania źródła promieniowania rentgenowskiego. Przedstawiono wpływ zakresu przedziału czasu mierzonego przez miernik na wielkość błędu.

EN

Main idea of the article is a description of problems of X-ray exposure time measurement. Content describes two types of X-ray machines. Among the two X-ray machine types, continuous type with shutter is more suitable for long time measurement, and pulse type is better for short time measurements. The article discuss differences between mode of operation of different X-ray sources and it’s impact on uncertainty of measurement of exposure time. It also discuss impact of different resolution settings of device under calibration on uncertainty measurement.