Dose response of xylitol and sorbitol for EPR retrospective dosimetry with applications to chewing gum

Israelsson, Axel; Gustafsson, Håkan; Lund, Eva

doi:10.1093/rpd/ncs174

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…The validated assays for retrospective analysis are calcified tissues (tooth enamel and bone) and sugar, while materials such as nails, mineral glass, sweeteners, plastics and clothing fabrics that are widespread among humans are under investigation 12,13,[62][63][64][65][66] . The ideal characteristics of a beneficial fortuitous dosemeter are a high radiationinduced signal yield, the absence of endogenous signals, a low UV-induced signal, low detection limit, the linearity of the signal with dose and post-irradiation signal stability 61 .…”

Section: Electron Paramagnetic Resonancementioning

confidence: 99%

Uncertainty on Radiation Doses Estimated by Biological and Retrospective Physical Methods

Ainsbury

Samaga

Monaca

et al. 2017

Radiation Protection Dosimetry

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Biological and physical retrospective dosimetry are recognised as key techniques to provide individual estimates of dose following unplanned exposures to ionising radiation. Whilst there has been a relatively large amount of recent development in the biological and physical procedures, development of statistical analysis techniques has failed to keep pace. The aim of this paper is to review the current state of the art in uncertainty analysis techniques across the 'EURADOS Working Group 10-Retrospective dosimetry' members, to give concrete examples of implementation of the techniques recommended in the international standards, and to further promote the use of Monte Carlo techniques to support characterisation of uncertainties. It is concluded that sufficient techniques are available and in use by most laboratories for acute, whole body exposures to highly penetrating radiation, but further work will be required to ensure that statistical analysis is always wholly sufficient for the more complex exposure scenarios.

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Section: Electron Paramagnetic Resonancementioning

confidence: 99%

Uncertainty on Radiation Doses Estimated by Biological and Retrospective Physical Methods

Ainsbury

Samaga

Monaca

et al. 2017

Radiation Protection Dosimetry

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“…Retrospective dosimeters are devices or methods used to estimate the radiation dose received by individuals or populations after an exposure event has occurred. These dosimeters are particularly useful in situations where conventional dosimeters may not have been available or applicable [2]. One type of retrospective dosimetry technique is based on luminescence, specifically optically stimulated luminescence (OSL) and thermoluminescence (TL).…”

Section: Introductionmentioning

confidence: 99%

Investigation of zinc polycarboxylate cement used in dental treatments in terms of retrospective dosimeter

Toktamış,

Halidoğlu,

Toktamış

2024

Luminescence

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Zinc polycarboxylate cement is one of the few dental materials that demonstrate true adhesion to tooth structure. It is suitable for use in living organisms without causing harm. Its strong adhesion to teeth and low level of irritancy are two important parameters for the dental applications. In this study, the dosimetry properties of zinc polycarboxylate cement using thermoluminescence (TL) method were investigated and determined the effectiveness of its use as a good dosimeter. According to the results of this study, the sample shows a good TL properties with three main peaks found around 140°C, 220°C and 330°C. It has a wide linear dose response between 72 Gy and 2.3 kGy and good reusability of the TL peak found at 330°C. Unfortunately, the TL peak intensity values are rapidly faded within a short waiting time interval. Zinc polycarboxylate cement, which is frequently used in dental crowns, can be used as a retrospective dosimeter for measuring the amount of radiation in space studies and nuclear accidents due to its wide linear dose–response curve in the high dose region.

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“…EMR spectroscopy had already been investigated for accidental dosimetry, using biological compounds (Trivedi and Greenstock, 1993;Rossi et al, 2000;Schauer et al, 2001;Trompier et al, 2009) or even sugars and other materials (Ikeya, Miyajima and Okajima, 1984;Nakajima, 1988;Barthe et al, 1989;Ikeya and Ishii, 1989;Nakajima, 1989;Kai, Ikeya and Miki, 1990;Nakajima and Otsuki, 1990;Trivedi and Greenstock, 1993;Bassinet, Trompier and Clairand, 2010;Kinoshita, José and Baffa, 2010;Trompier, Bassinet and Clairand, 2010;Israelsson, Gustafsson and Lund, 2013;Sholom and McKeever, 2016). Some examples of real scenarios that EMR dosimetry was used to evaluate dose are:…”

Section: Alternative Materials For Emr Dosimetrymentioning

confidence: 99%

Campos pequenos de radiação e materiais alternativos em dosimetria com espectroscopia de ressonância magnética eletrônica

Rech¹

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Rech AB. Small radiation field and alternative materials in dosimetry with electron magnetic resonance spectroscopy [thesis]. Ribeirão Preto: Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto; 2017.To keep up with advances in radiotherapy, dosimetric systems need improvement to meet the standards established for treatment accuracy; simultaneously, radioactive exposure goes beyond clinical use, and the detection in unforeseen scenarios is of interest too. Electron magnetic resonance spectroscopy (EMR) can detect paramagnetic centers created in materials exposed to radiation, relating spectral response with absorbed dose, thus performing nondestructively dosimetry, by keeping the information after the readout. After standardization of alanine as a high dose detector and the applicability in clinical studies, difficulties allowed the investigation of other EMR dosimetry materials; on the other hand, classifying compounds that are present daily and with the possibility of tissue equivalence is another stimulus for the expansion of alternative materials analysis. The development of this thesis is between two distinct but interconnected topics; first minidosimeters are presented for small field dosimetry, with a clinical approach, and the investigation of alternative materials, both topics applied in EMR dosimetry. Concerning the minidosimeters, some pellets' aspects are studied, a new concept of detector, called EPResize®; and a stereotactic radiosurgery end-to-end audit are presented; about alternative materials research, more than 20 compounds were studied, based on ammonium, lithium, potassium and sodium. The results showed that the difficulties in determining the dose with small fields in a clinical dose range is an issue that still needs much attention and adequacy of the dosimetric systems, in order to extract the greatest possible sensitivity, with the need to employ parameters and methods of analysis besides the daily used; several materials were adequate for EMR dosimetry, such as ammonium sulfate, sodium formate, sodium dithionate, sodium citrate and different sulfites, which, even when not satisfying clinical aspects, are alternatives for control and determination of doses in other scenarios. The ability to perform clinical dosimetry with RME and the standardization of this system allow the improvement of treatments accuracy, and the availability of a greater variety of EMR dosimetry materials facilitates the need for dose mapping unforeseen cases.

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Dose response of xylitol and sorbitol for EPR retrospective dosimetry with applications to chewing gum

Cited by 8 publications

References 19 publications

Uncertainty on Radiation Doses Estimated by Biological and Retrospective Physical Methods

Uncertainty on Radiation Doses Estimated by Biological and Retrospective Physical Methods

Investigation of zinc polycarboxylate cement used in dental treatments in terms of retrospective dosimeter

Campos pequenos de radiação e materiais alternativos em dosimetria com espectroscopia de ressonância magnética eletrônica

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