A new dosimeter based on ferrous sulphate solution and agarose gel
References (11)
- et al.
Radiation chemical and magnetic resonance studies of aqueous agarose gels containing ferrous ions
Radiat. Chem.
(1988) - et al.
Imaging of spatial radiation dose distribution in agarose gels using magnetic resonance
Med. Phys.
(1987) Radiation dosimetry using nuclear magnetic resonance: an introductory review
Phys. Med. Biol.
(1990)- et al.
Cited by (48)
Does the gelation temperature or the sulfuric acid concentration influence the dosimetric properties of radiochromic PVA-GTA Xylenol Orange Fricke gels?
2019, Radiation Physics and ChemistryCitation Excerpt :Accordingly, gelation is achieved by cooling. It was observed that both the mixing temperature and the cooling rate influenced the radiation dose sensitivity of these FG dosimeters (Olsson et al., 1991; Tarte et al., 1996). The dependence of gel sensitivity on cooling rate might have important consequences in case of production of large gel dosimeters acting also as phantoms (e.g. with volume of one liter or more).
The role of hydrogels in the radical production of the Fricke-gel-dosimeter
2018, Radiation Physics and ChemistryCitation Excerpt :For aqueous Fricke, instead, equations 2–5 are due only to organic impurities, and then the iron oxidation might follows the reaction:H2O2 + Fe2+ + H+ → Fe3+ + H2O + OH· Therefore, the oxidation of the ferrous ions could be mainly related to the presence of peroxide, even if, due to the irradiation of frozen solution at 77 K, no chain reaction can be observed as in the case of liquid solution [Olsson et al., 1991]. In this study we proposed EPR measurement of frozen solutions as an alternative to pulse radiolysis [Khaikin et al., 1996] for the study and the determination of radicals.
Fricke Xylenol Gel characterization at megavoltage radiation energy
2017, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsESR response of phenol compounds for dosimetry of gamma photon beams
2014, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsMeasuring output factors and beam profiles formed by multileaf collimators using fricke gel dosimeter
2014, Physica MedicaCitation Excerpt :The Fricke Xylenol Gel (FXG) dosimeter used is composed of: gelatin 300 Bloom, sulfuric acid, ferrous sulfate, xylenol orange and Milli-Q water. Its preparation [19–21], irradiation [22,23] and applications [24–26] were already reported [27–32]. The FXG optical density was determined from a portable spectrometer (Vary-Varian/Ultro-pec2100/79500), with the wavelength at 585 nm and a light collimator of 1 mm diameter, that determines the FXG lateral spatial resolution.
NMR relaxometry measurements of Fricke gel dosimeters exposed to neutrons
2014, Radiation Physics and ChemistryCitation Excerpt :The possibility of reconstructing the spatial distribution of the absorbed dose released is related to the stability of the position of Fe3+ ions produced. In an attempt to hinder the diffusion of radiation-induced ferric ions several experiments were performed at the aim at incorporating Fricke solutions in more stable matrices such as gels (Appleby et al., 1987; Appleby and Leghrouz, 1991; Gambarini et al., 1997a; Hazle et al., 1991; Marrale et al., 2014; Olsson et al., 1989, 1990, 1991; Schulz et al., 1990). Agarose gel and porcine gelatins have been primarily used for the realization of the gel matrix (Schreiner, 2004).