Academic Journal
Influence of a tabletop scanner, used for digitization, on the determination of dose by radiochromic film ; Influencia de un escáner de mesa, usado para digitalizar, en la determinación de dosis por película radiocrómica
| العنوان: | Influence of a tabletop scanner, used for digitization, on the determination of dose by radiochromic film ; Influencia de un escáner de mesa, usado para digitalizar, en la determinación de dosis por película radiocrómica |
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| المؤلفون: | Vargas-Segura, Walter, Cordero Ramírez, Anthony, Mora-Fallas, Alexander |
| المصدر: | UNED Research Journal; Vol. 15 No. 2 (2023); e4709 ; UNED Research Journal; Vol. 15 Núm. 2 (2023); e4709 ; 1659-441X ; 1659-4266 |
| بيانات النشر: | Universidad Estatal a Distancia, Costa Rica |
| سنة النشر: | 2023 |
| المجموعة: | Revistas UNED (Universidad Estatal a Distancia de Costa Rica) |
| مصطلحات موضوعية: | película radiocrómica, incertidumbre, escáner, dosimetría por película, EBT3, resolución, Radiochromic film, scanner, uncertainty, film dosimetry, resolution |
| الوصف: | Introduction: The precision in determination of the dose using radiochromic films as a dosimeter is influenced by three main aspects: the dose delivery capacity of the radiation unit, the response of the film when exposed to radiation, and the capacity of the scanner to digitize the films and transform them into intensity values. This work focuses on the last aspect. Objective: To establish a methodology for the evaluation of the variability of the dose due to the repeatability of scans and the position of the film in the scanning area, under calibration conditions of radiochromic films for three different resolutions. Methods: Pieces of EBT3 radiochromic films were irradiated at 11 different dose values, which were scanned at 3 different resolutions, creating a calibration curve for each resolution. These curves are used to determine dose variations due to film position in the scan area and scan repeatability; for this purpose, we measured 5 dose values per film, for each of 9 images by resolution, with a total of 27 images. Results: In the three resolutions studied, uncertainties below 1% were found due to variation in the position of the film in the scanning area and uncertainty below 2% in the case of scan repeatability. Conclusions: The values obtained from the sources of uncertainty studied were not negligible; therefore, they must be included in the total uncertainty budget of the radiochromic film dose measurement process. Working with dose values eliminates the dependence on the resolution. ; Introducción: La precisión en la determinación de la dosis utilizando películas radiocrómicas como dosímetro, se encuentra influenciada por: la capacidad del equipo emisor de radiación ionizante al dar la dosis deseada, la respuesta de la película al ser expuesta a la radiación y a la capacidad del escáner para digitalizar las películas y transformarlas en valores de intensidad. Este trabajo se enfoca en este último aspecto. Objetivo: Establecer una metodología para la evaluación de la variabilidad de la dosis ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf; text/html; application/epub+zip |
| اللغة: | Spanish; Castilian |
| Relation: | https://revistas.uned.ac.cr/index.php/cuadernos/article/view/4709/7007; https://revistas.uned.ac.cr/index.php/cuadernos/article/view/4709/7008; https://revistas.uned.ac.cr/index.php/cuadernos/article/view/4709/7009; https://revistas.uned.ac.cr/index.php/cuadernos/article/view/4709 |
| DOI: | 10.22458/urj.v15i2.4709 |
| الاتاحة: | https://revistas.uned.ac.cr/index.php/cuadernos/article/view/4709 https://doi.org/10.22458/urj.v15i2.4709 |
| Rights: | Derechos de autor 2023 UNED Research Journal ; https://creativecommons.org/licenses/by/4.0 |
| رقم الانضمام: | edsbas.6F29F8B0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.22458/urj.v15i2.4709 |
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