ESR investigation of sucrose radicals produced by 0.25−4.5 Gy doses of X-ray irradiation

• Published in: Journal of radiation research Vol. 55; no. 4; pp. 726 - 729
• Main Authors: Nakagawa, Kouichi, Kobukai, Ken, Sato, Yuzuru
• Format: Journal Article
• Language: English
• Published: England Oxford University Press 01.07.2014
• Subjects: Biology; Dosage; Electron paramagnetic resonance; Electron spin resonance; Electron Spin Resonance Spectroscopy; Free radicals; Free Radicals - chemistry; Free Radicals - radiation effects; Fructose; Fructose - chemistry; Fructose - radiation effects; Glucose - chemistry; Glucose - radiation effects; Investigations; Irradiation; Radiation Dosage; Radicals; Radiometry; Sucrose; Sucrose - chemistry; Sucrose - radiation effects; X-rays; radical; ESR; EPR; X-ray; sucrose; low dose; irradiation
• ISSN: 0449-3060; 1349-9157
• DOI: 10.1093/jrr/rru018

We investigated stable radicals produced by 0.25−4.5 Gy doses of X-ray irradiation of sucrose. Electron spin resonance (ESR) is able to observe the signal from sucrose irradiated at 0.25 Gy. The ESR signal intensity of the radicals is related to the accumulated dose, and it increases linearly with increasing absorbed dose. In addition, we examined the effect of dose rate (0.50−1.5 Gy/min) on the signal intensity of the irradiated sucrose. The stable radical production did not exhibit dose rate dependence. In addition, the peak corresponding to the irradiated glucose was observed to increase more with increasing absorbed dose than the peak corresponding to irradiated fructose. Therefore, the present ESR results regarding the 0.25−4.5 Gy irradiation of sucrose provide new insights into a possible sucrose ESR dosimeter.