Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques
Conventional Fricke is an aqueous ferrous sulfate solution that has been widely studied in the field of chemical dosimetry. The feasibility of its use has become attractive for high dose measurements that are of clinical interest in the field of radiotherapy and for industrial purposes, in the irrad...
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2023-07-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2194 |
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| author | Ângela Moreira Marques dos Santos Rita de Cássia de Oliveira Sebastião Amir Zacarias Mesquita Thêssa Cristina Alonso Andrea Mantuano Telma Cristina Ferreira Fonseca |
| author_facet | Ângela Moreira Marques dos Santos Rita de Cássia de Oliveira Sebastião Amir Zacarias Mesquita Thêssa Cristina Alonso Andrea Mantuano Telma Cristina Ferreira Fonseca |
| author_sort | Ângela Moreira Marques dos Santos |
| collection | DOAJ |
| description | Conventional Fricke is an aqueous ferrous sulfate solution that has been widely studied in the field of chemical dosimetry. The feasibility of its use has become attractive for high dose measurements that are of clinical interest in the field of radiotherapy and for industrial purposes, in the irradiation of blood bags and the sterilization of surgical material. The derivation of the absorbed dose of Fricke depends on the radiation-induced oxidation of iron (II) ions (Fe2+) present in the aqueous solution to iron (III) ions (Fe3+), which occurs after exposure to ionising radiation. In this paper, it is proposed to evaluate the dose response of the Fricke dosimeter using two different analytical techniques, ultraviolet-visible spectrophotometry (UV-Vis) and nuclear magnetic resonance spectroscopy (NMR). Twelve groups of samples were analysed in triplicate, irradiated with doses between 0 and 800 Gy, using a cobalt-60 source (60Co). The dose rate of Fricke dosimeters was evaluated against the practical values obtained. The different methods allowed an analytical correlation of the species of oxidised iron (Fe3+) using a linearity curve as a function of the applied radiation dose. |
| format | Article |
| id | doaj-art-a71cb9d409fc4d47a3a2c67965675f30 |
| institution | DOAJ |
| issn | 2319-0612 |
| language | English |
| publishDate | 2023-07-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-a71cb9d409fc4d47a3a2c67965675f302025-08-20T03:13:32ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122023-07-01111A (Suppl.)11310.15392/2319-0612.2023.21941812Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniquesÂngela Moreira Marques dos Santos0Rita de Cássia de Oliveira Sebastião1Amir Zacarias Mesquita2Thêssa Cristina Alonso3Andrea Mantuano4Telma Cristina Ferreira Fonseca5Federal University of Minas Gerais, UFMGFederal University of Minas Gerais, UFMGNuclear Technology Development Center – CDTNNuclear Technology Development Center – CDTNState University of Rio de Janeiro - UERJFederal University of Minas Gerais, UFMGConventional Fricke is an aqueous ferrous sulfate solution that has been widely studied in the field of chemical dosimetry. The feasibility of its use has become attractive for high dose measurements that are of clinical interest in the field of radiotherapy and for industrial purposes, in the irradiation of blood bags and the sterilization of surgical material. The derivation of the absorbed dose of Fricke depends on the radiation-induced oxidation of iron (II) ions (Fe2+) present in the aqueous solution to iron (III) ions (Fe3+), which occurs after exposure to ionising radiation. In this paper, it is proposed to evaluate the dose response of the Fricke dosimeter using two different analytical techniques, ultraviolet-visible spectrophotometry (UV-Vis) and nuclear magnetic resonance spectroscopy (NMR). Twelve groups of samples were analysed in triplicate, irradiated with doses between 0 and 800 Gy, using a cobalt-60 source (60Co). The dose rate of Fricke dosimeters was evaluated against the practical values obtained. The different methods allowed an analytical correlation of the species of oxidised iron (Fe3+) using a linearity curve as a function of the applied radiation dose.https://bjrs.org.br/revista/index.php/REVISTA/article/view/2194conventional frickeuv-visiblenuclear magnetic resonance |
| spellingShingle | Ângela Moreira Marques dos Santos Rita de Cássia de Oliveira Sebastião Amir Zacarias Mesquita Thêssa Cristina Alonso Andrea Mantuano Telma Cristina Ferreira Fonseca Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques Brazilian Journal of Radiation Sciences conventional fricke uv-visible nuclear magnetic resonance |
| title | Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques |
| title_full | Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques |
| title_fullStr | Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques |
| title_full_unstemmed | Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques |
| title_short | Dose response assessment of conventional Fricke: a relationship between UV-Visible and nuclear magnetic resonance techniques |
| title_sort | dose response assessment of conventional fricke a relationship between uv visible and nuclear magnetic resonance techniques |
| topic | conventional fricke uv-visible nuclear magnetic resonance |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2194 |
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