Análise comparativa dos testes de controle de qualidade em tomografia computadorizada de acordo com as legislações nacional e internacional

Ramos, Fernando da Silva; Vasconcelos, Rebeca de Souza; Gonçalves, Marcel dos Santos; Oliveira, Marcus

doi:10.15392/bjrs.v3i1a.111

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…The dosimetry of ionizing radiation is essential for radiation protection, equipment commissioning, and quality assurance. Worldwide, occupational and environmental dose assessment programs and various protocols for equipment quality control are based on passive solid-state dosimeters [5][6][7][8]. The most established passive dosimetric systems apply thermoluminescence (TL) or optically stimulated luminescence (OSL) techniques [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

An overview study on the TL and OSL dosimetry patent processes over time

et al. 2023

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Since its discovery, ionizing radiation has been used in many different applications. Materials and methods have been developed to measure and quantify radiation doses. Thermoluminescence (TL) and Optically Stimulated Luminescence (OSL) are two techniques used for radiation dosimetry. Both TL and OSL are primarily applied in several areas, such as dating of ancient materials, equipment quality control and individual monitoring. One of the parameters to measure the knowledge and development of a technology is the number of patents related to the field. In this work, we established a methodology for patent search on the World Intellectual Property Organization (WIPO) database aiming to review the development of TL and OSL dosimetry over time. We concluded that along with the OSL technique development, the TL technique should continue to be explored in radiation dosimetry.

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Section: Introductionmentioning

confidence: 99%

An overview study on the TL and OSL dosimetry patent processes over time

et al. 2023

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“…Passive dosimetric systems that apply thermoluminescence (TL) and optically stimulated luminescence (OSL) techniques are widely used for occupational and environmental dose assessment programs, are also used for various dosimetric applications and, according to the American Association of Physicists in Medicine (AAPM) Task Group 191, are practical, accurate and precise for medical physics applications (Izewska et al 2003, ICRP 2007, Ramos et al 2015, Kry et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Using the optically stimulated luminescence technique for one- and two-dimensional dose mapping: a brief review

Gasparian¹,

Malthez²,

Rodrigues³

2022

Phys. Med. Biol.

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In respect of radiation dosimetry, several applications require dose distribution verification rather than absolute dosimetry. Most protocols use radiological and radiochromic films and ionization chambers or diode arrays for dose mapping. The films are disposable which causes the precision of the results dependent on film production variability. The measurements with arrays of ionization chambers or diodes mainly lack spatial resolution. This review aims to provide an overview of the use of optically stimulated luminescence detectors (OSLDs) for one-dimensional (1D) and two-dimensional (2D) dose mapping in different applications. It reviews the ideas, OSL materials, and applications related to the assessment of dose distribution using OSLDs in the form of film or ceramic plate (BeO). Additionally, it reviews research published in the international scientific literature from 1998 to 2021. As an outcome, a table containing the main characteristics of each relevant paper is shown. The results section was divided by the type of OSL material, and we briefly described the principal findings and the significant developments of each mentioned study such as film production and OSL reader assembly. The purpose of this study was to present an overview of the main findings of several research groups on the use of OSLD in the form of film or plate for 1D and 2D dose mapping. Finally, the potential future development of dose mapping using OSLD films was outlined.

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“…Tanto no Brasil quanto internacionalmente, os programas de avaliação das doses ocupacional e ambiental e os diversos protocolos para controle de qualidade de equipamentos são baseados em dosímetros de estado sólido passivos (IZEWSKA et al, 2003;RAMOS et al, 2015). Dentre esses, destacam-se os dosímetros luminescentes que fazem uso das técnicas de termoluminescência (TL) e de luminescência opticamente estimulada (OSL, do inglês Optically Stimulated Luminescence).…”

Section: Introductionunclassified

Desenvolvimento, produção e caracterização de filmes OSLD baseados em CaSO>sub<4>/sub< para aplicação em dosimetria das radiações

Gasparian¹

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por fornecer os materiais utilizados para a produção dos filmes OSLD e, principalmente, pelo incansável suporte. Sem ela, a realização deste trabalho não seria possível.Agradeço pelas inúmeras conversas e sugestões ao longo de toda esta jornada.Ao colega Aldo Ramos de Oliveira, pela produção dos cristais de sulfato de cálcio no laboratório do IPEN e por diversos apoios, sempre com disposição e serenidade.Ao Renato Giordano, pela ajuda na confecção da caixa de bleaching.

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Análise comparativa dos testes de controle de qualidade em tomografia computadorizada de acordo com as legislações nacional e internacional

Abstract: O objetivo deste trabalho foi realizar uma análise comparativa entre a legislação brasileira e os protocolos internacionais, no que tange aos testes de controle de qualidade direcionados para a Tomografia Computadorizada.

Cited by 3 publications

References 8 publications

An overview study on the TL and OSL dosimetry patent processes over time

An overview study on the TL and OSL dosimetry patent processes over time

Using the optically stimulated luminescence technique for one- and two-dimensional dose mapping: a brief review

Desenvolvimento, produção e caracterização de filmes OSLD baseados em CaSO>sub<4>/sub< para aplicação em dosimetria das radiações

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