Estimating of radiation output of X-RAY tube using mathematical model: Case of high-frequency machines.

Autor: Ngankem AE; Centre for Atomic Molecular Physics and Quantum Optics (CEPAMOQ), University of Douala, P.O 8580 Douala, Cameroun. Electronic address: ngankempablo@gmail.com., Simo CRT; Condensed Matter, Electronics and Signal Processing Laboratory, Department of Physics, University of Dschang, P.O. Box 67, Dschang, Cameroon., Bongue D; Centre for Atomic Molecular Physics and Quantum Optics (CEPAMOQ), University of Douala, P.O 8580 Douala, Cameroun., Njantang RN; Department of Physics, Faculty of Sciences, University of Douala, P.O 24157 Douala, Cameroun; National Radiation Protection Agency, Yaounde P.O 33732, Yaounde, Cameroon., Ndontchueng MM; Centre for Atomic Molecular Physics and Quantum Optics (CEPAMOQ), University of Douala, P.O 8580 Douala, Cameroun; National Radiation Protection Agency, Yaounde P.O 33732, Yaounde, Cameroon., Samba ON; Laboratory of Modelling and Simulation in Engineering and Biological Physics, University of Yaounde 1, P.O 812 Yaoundé, Cameroun.
Jazyk: angličtina
Zdroj: Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) [Phys Med] 2024 Apr; Vol. 120, pp. 103324. Date of Electronic Publication: 2024 Mar 08.
DOI: 10.1016/j.ejmp.2024.103324
Abstrakt: Purpose: During any radiological procedure, it is important to know the dose to be-administered to the patient and this can be done by estimating the output of the X-ray tube either with a dosimeter or with a mathematical equation or Monte Carlo simulations. The aim of this work is to develop a new mathematical model equation (NMME) for estimating the output of high-frequency X-ray tubes.
Methods: To achieve this, data collected from ten machines in many regions of Cameroon were used (for nine machines) to build an initial model that does not take into account the anode angle and the tenth machine was used to test the model. Using the SpekCalc software, some simulations were carried out to evaluate the influence of the anode angle. This allowed the NMME to be proposed.
Results: The deviations frequencies between 0.65% and 19.61% were obtained by comparing the output values obtained using initial model with the measured values. The statistical hypothesis test showed that the estimated values using initial model and NMME are in agreement with those measured unlike the Kothan and Tungjai model. For the tenth machine, the percentage difference between estimated and measured values is less than 8 %.
Conclusion: These results show that the proposed model performed better than the previous models. In the absence of a dosimeter, the NMME could be used to estimate the output of high frequency X-ray machines and therefore the radiation doses received by patients during diagnostic X-ray examinations.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Associazione Italiana di Fisica Medica e Sanitaria. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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