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首页> 外文期刊>Radiation Protection Dosimetry >GAMMA-RAY AND NEUTRON DOSIMETRY BY EPR AND AMS,USING TOOTH ENAMEL FROM ATOMIC-BOMB SURVIVORS: A MINI REVIEW
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GAMMA-RAY AND NEUTRON DOSIMETRY BY EPR AND AMS,USING TOOTH ENAMEL FROM ATOMIC-BOMB SURVIVORS: A MINI REVIEW

机译：EPR和AMS进行的伽玛射线和中子剂量学研究，使用原子弹幸存者中的牙齿珐琅进行迷你审查

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摘要

The electron paramagnetic resonance (EPR, or electron spin resonance) method was used to measure CO_2 - radicals recorded in tooth enamel by exposure to atomic-bomb gamma rays. The EPR-estimated doses (i.e. ~(60)Co gamma-ray equivalent dose) were generally in good correlation with cytogenetic data of the same survivors, whereas plots of EPR-estimated dose or cyto-genetically estimated dose against DS02 doses turned out to scatter more widely. Because those survivors whose EPR doses were higher (or lower) than DS02 doses tended to show also higher (or lower) responses for cytogenetic responses, the apparent variation appears primarily due to problems in individual DS02 doses rather than the measurement errors associated with the EPR or cytogenetic technique. A part of the enamel samples were also used for evaluation of neutron doses by measuring ~(41)Ca/~(40)Ca ratios using the accelerator mass spectrometry technique. The results for the measured ratios were on average ～85 % of the calculated ratios by DS02 (but within the 95 % confidence bounds of the simulated results), which lends support to DS02-derived neutron doses to the survivors.
机译：电子顺磁共振（EPR或电子自旋共振）方法用于通过暴露于原子弹伽玛射线来测量牙釉质中记录的CO_2-自由基。 EPR估计剂量（即〜（60）Coγ射线当量剂量）通常与相同幸存者的细胞遗传学数据具有良好的相关性，而EPR估计剂量或细胞遗传估计剂量与DS02剂量的关系图分散范围更广。因为那些EPR剂量高于（或低于）DS02剂量的幸存者往往也表现出更高（或更低）的细胞遗传学应答，所以明显的变化主要是由于各个DS02剂量存在问题，而不是与EPR相关的测量误差或细胞遗传学技术。通过使用加速器质谱技术测量〜（41）Ca /〜（40）Ca比，一部分搪瓷样品也用于评估中子剂量。测得比率的结果平均约为DS02计算比率的85％（但在模拟结果的95％置信范围内），这为幸存者提供了源自DS02的中子剂量。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.79-83|共5页
  • 作者

    Nori Nakamura; Yuko Hirai; Yoshiaki Kodama;

  • 作者单位

    Department of Genetics, Radiation Effects Research Foundation, 5-2 Hijiyama Park, Minami-ku,Hiroshima 732-0815, Japan;

    Department of Genetics, Radiation Effects Research Foundation, 5-2 Hijiyama Park, Minami-ku,Hiroshima 732-0815, Japan;

    Department of Genetics, Radiation Effects Research Foundation, 5-2 Hijiyama Park, Minami-ku,Hiroshima 732-0815, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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