EPR of gamma irradiated solid sucrose and UV spectra of its solution. An attempt for calibration of solid state/EPR dosimetry

Karakirova, Yordanka

doi:10.1016/j.radmeas.2006.10.004

Cited by 22 publications

(6 citation statements)

References 21 publications

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“…1) shows that they are equivalent from the point of view of dosimetric applications. The same correlation was observed by Yordanov and Karakirova (2007b) in different experimental conditions. EPR measurements were probably more responsible for some dispersion of the results (Fig.…”

Section: Resultssupporting

confidence: 86%

“…However, for routine high-dose dosimetry a permanent 0.03 kGy ''zero signal'' seems to be acceptable. Contrarily, the procedure proposed by Yordanov and Karakirova (2007b) to obtain EPR silent product (grinding sugar under chloroform) seems to be hardly acceptable. The first drawback is high toxicity of chloroform, and the second one is the possible influence of CHCl 3 residuals on sucrose radiolysis pattern.…”

Section: Resultsmentioning

confidence: 99%

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Sucrose as double-signal high-dose dosimeter for ionizing radiation

Peimel-Stuglik¹,

Fabisiak²

2009

Radiation Physics and Chemistry

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Sucrose as double-signal high-dose dosimeter for ionizing radiation

Peimel-Stuglik¹,

Fabisiak²

2009

Radiation Physics and Chemistry

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“…The plots of the EPR and UV responses seen in Fig. 8 demonstrate that there is a linear correlation between the results obtained by these two techniques for heavy-ion irradiation, suggesting the possibility for confirmation of the EPR results [ 31 ].…”

Section: Discussionmentioning

confidence: 98%

Heavy-ion-induced sucrose radicals investigated using EPR and UV spectroscopy

Nakagawa

Karakirova

2014

Journal of Radiation Research

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The potential use of a sucrose dosimeter for estimating both linear energy transfer (LET) and the absorbed dose of heavy ion and X-ray radiation was investigated. The stable free radicals were produced when sucrose was irradiated with heavy ions, such as helium, carbon, silicon and neon ions, and when the X-ray radiation was similar to the obtained electron paramagnetic resonance (EPR) spectra, which were ∼7 mT wide and composed of several hyperfine structures. In addition, the total spin concentration resulting from heavy-ion irradiation increased linearly as the absorbed dose increased, and decreased logarithmically as the LET increased. These empirical relations imply that the LET at a certain dose can be determined from the spin concentration. For sucrose and alanine, both cross-sections following C-ion irradiation with a 50 Gy dose were ∼1.3 × 10−12 [μm2], taking into account the molecular size of the samples. The values of these cross-sections imply that multiple ionizing particles were involved in the production of stable radicals. Furthermore, UV absorbance at 267 nm of an aqueous solution of irradiated sucrose was found to linearly increase with increasing absorbed dose. Therefore, the EPR and UV results suggest that sucrose can be a useful dosimeter for heavy-ion irradiation.

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“…It was used for a long time for many applications such as sterilization of medical devices. Rare earth doped phosphors have a vital role as radiation detectors in many fields of fundamental and applied research, such as clinical, personal, and environmental monitoring of ionizing radiation [1,2]. Various methods of preparation have also been developed for easy synthesis of these materials to make them available easily.…”

Section: Introductionmentioning

confidence: 99%

Dose Dependence of Mechanoluminescence Properties in MgAl₂O₄: Dy Phosphor

Satapathy¹,

Mishra²

2013

Journal of Chemistry

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A reliable dosimetry is fundamental for quality assurance of the processes and irradiation products. All dosimetric systems for high doses have some limitation with regard to their use. Dosimetric system should be easy to use, fast to measure, and of low cost. Good phosphor which shows high luminescence properties may fulfil the above criteria in some way. MgAl2O4: Dy phosphor has been prepared by solution combustion technique and confirmed with the help of XRD. ML has been excited impulsively by dropping a load of mass 0.7 kg onto the phosphors from various heights; two distinct ML peaks are observed for all the samples. It is observed that MgAl2O4: Dy phosphor shows linear response to gamma-ray dose and low fading which can be used for dosimetric purpose.

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EPR of gamma irradiated solid sucrose and UV spectra of its solution. An attempt for calibration of solid state/EPR dosimetry

Cited by 22 publications

References 21 publications

Sucrose as double-signal high-dose dosimeter for ionizing radiation

Sucrose as double-signal high-dose dosimeter for ionizing radiation

Heavy-ion-induced sucrose radicals investigated using EPR and UV spectroscopy

Dose Dependence of Mechanoluminescence Properties in MgAl₂O₄: Dy Phosphor

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EPR of gamma irradiated solid sucrose and UV spectra of its solution. An attempt for calibration of solid state/EPR dosimetry

Cited by 22 publications

References 21 publications

Sucrose as double-signal high-dose dosimeter for ionizing radiation

Sucrose as double-signal high-dose dosimeter for ionizing radiation

Heavy-ion-induced sucrose radicals investigated using EPR and UV spectroscopy

Dose Dependence of Mechanoluminescence Properties in MgAl2O4: Dy Phosphor

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Product

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Dose Dependence of Mechanoluminescence Properties in MgAl₂O₄: Dy Phosphor