Investigation of heavy-ion-induced sucrose radicals by electron paramagnetic resonance
Investigation of heavy-ion-induced sucrose radicals by electron paramagnetic resonance
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DOI：
10.1667/rr3429.1
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发表时间：
2005-09-01
影响因子：
3.4
通讯作者：
Sato, Y
中科院分区：
文献类型：
--
作者：
Nakagawa, K;Sato, Y
用电子顺磁共振（EPR）光谱方法研究了重离子辐照蔗糖自由基的产生。我们研究了蔗糖自由基的产生和离子种类之间的相关性，以及LET（线性能量转移）。所获得的光谱图案对于各种离子种类是相同的，包括氦、碳、氖、氩和铁离子。定量EPR分析表明，蔗糖自由基的产生依赖于两个离子种类和LET为50戈伊的相同剂量。得到的自旋产额与LET呈对数相关。在5-60戈伊剂量范围内，EPR响应与剂量呈线性关系。因此，目前的EPR结果表明，蔗糖可以用来监测电离粒子的基础上的自由基产率。(c)2005年，辐射研究协会。
The production of sucrose radicals with heavy-ion irradiation was investigated by an EPR (electron paramagnetic resonance) spectroscopic method. We examined the correlation between the production of sucrose radicals and the ion species, as well as LET (linear energy transfer). The spectral pattern obtained was the same for various ion species, including helium, carbon, neon, argon and iron ions. Quantitative EPR analyses showed that the production of sucrose radicals depended on both the ion species and the LET for the same dose of 50 Gy. The spin yield obtained showed a logarithmic correlation with the LET. In addition, the EPR response had a linear relationship with dose in the dose range of 5-60 Gy. Thus the present EPR results show that sucrose can be used to monitor the ionizing particle based on the radical yield. (c) 2005 by Radiation Research Society.