Doses in eye lens, thyroid, and gonads, due to scattered radiation, during a CT radiodiagnosis study. (May 2019)

• Record Type: Journal Article
• Authors: Vázquez-Bañuelos, Joel; Campillo-Rivera, Guillermo Eduardo; García-Duran, Ángel; Rivera, Eric Reyes; Arteaga, Marcial Vásquez; Baltazar Raigosa, Antonio; Vega-Carrillo, Hector Rene
• Is Part Of: Applied radiation and isotopes. Volume 147(2019:May)
• Page Start: 31
• Page End: 34
• Publication Date: 2019-05
• Subjects: Absorbed dose -- Effective dose -- Scattered radiation -- X-ray -- CT scan -- TLD-100; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2019.02.012
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: X-ray images used for radio-diagnosis are very useful to evaluate the progress of a treatment or to have a better diagnosis. However, during the interaction between the incoming X-ray beam and the body surface, part of the radiation is scattered out reaching other parts of the body delivering an undesirable dose. In this work the dose in eye lenses, thyroid, and gonads of a solid water phantom was measured using thermoluminescent dosimeters, while a Computer Tomography of the torso was obtained. With the measured absorbed dose the effective dose was calculated. Thus, the effective dose in the eye lens, thyroid, and gonads is approximately 57, 214 and 9 μSv respectively. The largest effective dose was on that area located nearest to the region where the radiation is scattered. Highlights: A simple solid water phantom was used to obtain a CT x-ray image of the chest. Some of the incoming X-ray are scattered in the chest reaching other body areas. TLDs-100 were sited on eye lenses, thyroid, and gonads to measure the absorbed dose. The largest dose is in thyroid.