Doses and spectra, of leaking-out and scattered photons from X-ray tubes used in dentistry. (November 2022)

• Record Type: Journal Article
• Authors: Vega-Carrillo, Hector Rene; Vazquez-Bañuelos, Joel; Campillo-Rivera, Guillermo Eduardo; Garcia-Reyna, Mayra Guadalupe; Marquez-Mata, Claudia Angelica; Vasquez-Arteaga, Marcial
• Is Part Of: Applied radiation and isotopes. Volume 189(2022)
• Publication Date: 2022-11
• Subjects: X-ray spectra -- Scattered-out radiation -- Leaking-out radiation -- Air kerma -- Ambient dose equivalent -- Monte Carlo; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2022.110451
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: Diagnosis by X-ray image are procedures widely used to improve the diagnosis or to follow the evolution of a medical procedure, also are used to support the cancer treatment with linear accelerators. The procedure involves the X-ray unit and the detection system, while the X-ray beam is projected onto the patient; along this procedure X-rays are scattered out from the patient body and X-rays leak-out from the X-ray unit. Both, the scattered and the leaking out radiation, are important during the evaluation or the design of the shielding barriers. X-ray tube features like voltage, electric current, target and filter are related to the dose due to the scattered and leakage radiation. Also, the dose due to the scattered radiation depends upon the scattering angle; while the dose due to the leaking out radiation, depend upon the X-ray tube housing. The objective of this work was to estimate, using Monte Carlo methods, the X-ray spectra and doses (air Kerma and Ambient dose equivalent) produced by scattered and leaking out radiation of 70, 80 and 90 kV X-ray units. Highlights: X-ray spectra, H*(10) and Kair were estimated using Monte Carlo methods. The spectra include the useful (direct) and the leakage radiation for 70, 80 and 90 kV X-rays. Scattered X-ray spectra by a phantom in function of scattering angle were estimated. H*(10) and Kair due to scattered photons in function of scattering angle and the entrance area were estimated. Figure captions.