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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Analyses of the EPR responses of sucrose and L-alpha-alanine radicals induced by C, Ne, and Ar ion irradiations
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Analyses of the EPR responses of sucrose and L-alpha-alanine radicals induced by C, Ne, and Ar ion irradiations

机译：C，Ne和Ar离子辐照引起的蔗糖和L-α-丙氨酸自由基的EPR反应分析

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摘要

Using electron paramagnetic resonance (EPR), we investigated the signal responses of sucrose and L-alpha-alanine radicals produced by heavy-ion irradiation with various linear energy transfers (LETs) and absorbed dose. The spin yields for the two compounds showed a linear relation with the absorbed dose, as well as a logarithmic correlation with the LET. A quantitative EPR analysis showed that sucrose was more sensitive to the particle species than that of alanine. Hence, the present EPR results imply that sucrose can be useful as a radiation indicator. Further analysis was carried out for the radical-production cross section, which showed that stable radicals of the two compounds were produced through collisions of several particles with a single molecule. (c) 2005 Elsevier B.V. All rights reserved.
机译：使用电子顺磁共振（EPR），我们研究了由重离子辐照产生的蔗糖和L-α-丙氨酸自由基在各种线性能量转移（LET）和吸收剂量下的信号响应。两种化合物的自旋产率与吸收剂量呈线性关系，与LET呈对数关系。定量EPR分析表明，蔗糖比丙氨酸对颗粒物更敏感。因此，目前的EPR结果表明蔗糖可用作辐射指示剂。对自由基产生的横截面进行了进一步分析，结果表明这两种化合物的稳定自由基是通过几个颗粒与单个分子的碰撞而产生的。 （c）2005 Elsevier B.V.保留所有权利。

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