Assessment of Scatter Radiation Exposure in Diagnostic X-Ray Procedures for Radiation Safety
Main Article Content
Keywords
559-564
Abstract
Background: Radiation protection in medical X-ray imaging has been a subject of extensive scientific inquiry in recent decades. With diverse equipment and practices, attention has focused not only on patient doses but also on occupational exposure. Shielding requirements are crucial for safeguarding both medical personnel and those in the vicinity from scatter radiation,
necessitating detailed investigation.
Aim: This study aimed to measure secondary radiation in a conventional radiographic setting, focusing on dose rates and their dependence on radiographic exposure factors such as tube voltage and distance. The research sought to provide insights that could optimize radiation protection for medical personnel and patients, especially in scenarios involving mobile X-ray equipment.
Methods: A conventional radiographic system was utilized, equipped with a diagnostic X-ray tube and a three-phase high-voltage generator. Measurements were conducted using an ionization chamber calibrated for ambient dose rate equivalent, positioned at various distances and angles from a cylindrical water phantom. The X-ray field was maintained constant at 40 x 40 cm^2 to
simulate a worst-case scenario. Additionally, scatter X-ray energy distribution was evaluated through X-ray spectrometry.
References
2. IAEA Safety Reports Series No. 39. Applying radiation safety standards in diagnostic radiology and interventional procedures using X-rays. International Atomic Energy Agency (IAEA). STI/PUB/1206, ISBN 92-0-111004-9 (2006).
3. McCullough, E. C., & Cameron, J. R. Exposure rates from diagnostic X-ray units. Br. J. Radiol. 43, 448–451 (1970).
4. Petrantonaki, M., Kappas, C., Efstathopoulos, E. P., Theodorakos, Y., & Panayiotakis, G. Calculating shielding requirements in diagnostic X-ray departments. Br. J. Radiol. 72, 179–185 (1999).
5. Simpkin, D. J., & Dixon, R. L. Secondary shielding barriers for diagnostic X-ray facilities:scatter and leakage revisited. Health Phys. 74, 350–365 (1998).
6. Tsalafoutas, I. A., Yakoumakis, E., & Sandilos, P. A model for calculating shieldingrequirements in diagnostic X-ray facilities. Br. J. Radiol. 76, 731–737 (2003).
7. Noto, K., & Koshida, K. Estimation of 90° scattering coefficient in the shielding calculation of diagnostic X-ray equipment. In: Proceedings of the Eleventh EGS4 Users’ Meeting in Japan, KEK Proceedings. 15, 107–113 (2003).
8. Mellenberg, D. E., Sato, Y., Thompson, B. H., & Warnock, N. G. Personnel exposure rates during simulated biopsies with a real-time CT Scanner. Acad. Radiol. 6, 687–690 (1999).
9. McVey, G., & Weatherburn, H. A study of scatter in diagnostic X-ray rooms. Br. J. Radiol.77, 28–38 (2004).
10. Noto, K., Koshida, K., Iida, H., Yamamoto, T., Kobayashi, I., & Kawabata, C. Investigation of scatter fractions for estimating leakage dose in medical X-ray imaging facilities. Radiol.Phys. Technol. 2, 138–144 (2009).
Article Sidebar
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
All articles published in JPTCP are licensed under Copyright Creative Commons Attribution-NonCommercial 4.0 International License.