Dose response of Fricke Gel dosimeters with distinct indicators
Fricke solution, composed of ferrous ammonium sulfate in an aqueous solution of sulfuric acid, is used as a chemical dosimeter for gamma rays, X-rays and high energy electrons. The three-dimensional dosimetry has several applications, such as in radiotherapy procedures, imaging diagnosis techniques...
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| Language: | English |
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2025-05-01
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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/2599 |
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| author | Iasmin Nishibayaski A. L. S Silveira L. C. Meira-Belo |
| author_facet | Iasmin Nishibayaski A. L. S Silveira L. C. Meira-Belo |
| author_sort | Iasmin Nishibayaski |
| collection | DOAJ |
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Fricke solution, composed of ferrous ammonium sulfate in an aqueous solution of sulfuric acid, is used as a chemical dosimeter for gamma rays, X-rays and high energy electrons. The three-dimensional dosimetry has several applications, such as in radiotherapy procedures, imaging diagnosis techniques and internal dosimetry. In this work, the response of Fricke gel dosimeter with two types of indicator was compared. Sodium thiocyanate, a salt not used in dosimetry, and xylenol orange, a well-established indicator, were analyzed as indicators. The studies were performed in a cobalt-60 source. Dosimetric responses of Fricke gel with distinct indicators differ in their sensitivity, that is, the addition of sodium thiocyanate to the gel shifted the saturation point of the gel to an absorbed dose of approximately 300 Gy, while the Fricke gel with xylenol orange presents a saturation of around 30 Gy.
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| format | Article |
| id | doaj-art-056e95dcd57045899a2fa7704f6955a4 |
| institution | Kabale University |
| issn | 2319-0612 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-056e95dcd57045899a2fa7704f6955a42025-08-20T03:28:13ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122025-05-01124A (Suppl.)10.15392/2319-0612.2024.25992224Dose response of Fricke Gel dosimeters with distinct indicatorsIasmin Nishibayaski0A. L. S Silveira1L. C. Meira-Belo 2Centro de Desenvolvimento da Tecnologia Nuclear - CDTNCentro de Desenvolvimento da Tecnologia Nuclear - CDTNCentro de Desenvolvimento da Tecnologia Nuclear - CDTN Fricke solution, composed of ferrous ammonium sulfate in an aqueous solution of sulfuric acid, is used as a chemical dosimeter for gamma rays, X-rays and high energy electrons. The three-dimensional dosimetry has several applications, such as in radiotherapy procedures, imaging diagnosis techniques and internal dosimetry. In this work, the response of Fricke gel dosimeter with two types of indicator was compared. Sodium thiocyanate, a salt not used in dosimetry, and xylenol orange, a well-established indicator, were analyzed as indicators. The studies were performed in a cobalt-60 source. Dosimetric responses of Fricke gel with distinct indicators differ in their sensitivity, that is, the addition of sodium thiocyanate to the gel shifted the saturation point of the gel to an absorbed dose of approximately 300 Gy, while the Fricke gel with xylenol orange presents a saturation of around 30 Gy. https://bjrs.org.br/revista/index.php/REVISTA/article/view/2599dosimetryFricke Gelgamma radiationindicators |
| spellingShingle | Iasmin Nishibayaski A. L. S Silveira L. C. Meira-Belo Dose response of Fricke Gel dosimeters with distinct indicators Brazilian Journal of Radiation Sciences dosimetry Fricke Gel gamma radiation indicators |
| title | Dose response of Fricke Gel dosimeters with distinct indicators |
| title_full | Dose response of Fricke Gel dosimeters with distinct indicators |
| title_fullStr | Dose response of Fricke Gel dosimeters with distinct indicators |
| title_full_unstemmed | Dose response of Fricke Gel dosimeters with distinct indicators |
| title_short | Dose response of Fricke Gel dosimeters with distinct indicators |
| title_sort | dose response of fricke gel dosimeters with distinct indicators |
| topic | dosimetry Fricke Gel gamma radiation indicators |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2599 |
| work_keys_str_mv | AT iasminnishibayaski doseresponseoffrickegeldosimeterswithdistinctindicators AT alssilveira doseresponseoffrickegeldosimeterswithdistinctindicators AT lcmeirabelo doseresponseoffrickegeldosimeterswithdistinctindicators |