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首页> 外文期刊>Radiation Protection Dosimetry >RADIOBIOLOGICAL INVESTIGATIONS OF SOFT X-RAYS NEAR CARBON, NITROGEN, OXYGEN K-SHELL EDGES ON ASPERGILLUS ORYZAE SPORES
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RADIOBIOLOGICAL INVESTIGATIONS OF SOFT X-RAYS NEAR CARBON, NITROGEN, OXYGEN K-SHELL EDGES ON ASPERGILLUS ORYZAE SPORES

机译：蛇形藻在碳，氮，氧K壳边缘附近的软X射线的放射生物学研究

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摘要

Soft X-rays at carbon, nitrogen, oxygen K-shell edges have special radiobiological effects. Using Aspergillus oryzoe spores as sample, the radiation effects of soft X-rays near the K-shell edges of C, N and O elements from synchrotron radiation were investigated. Also the dose depositions of different X-ray energies in spore were discussed. At the same time, the spores were irradiated by gamma rays from ~(60)Co and relative biological effects were compared with those produced by soft X-rays. The results showed that soft X-rays near K-shell edges of O element had higher ability of radiation damage than that of X-rays near K-shell edges of C and N elements as compared with one another. But they all had higher killing abilities per unit dose than that of gamma rays from ~(60)Co. The relative biological effects (RBEs), the comparison of dose to gamma rays at 10% survival level, of the three soft X-rays were 1.65, 1.73 and 1.91, respectively.
机译：碳，氮，氧K壳边缘的软X射线具有特殊的放射生物学作用。以米曲霉孢子为样本，研究了同步加速器辐射在C，N和O元素的K壳边缘附近的软X射线的辐射效应。还讨论了孢子中不同X射线能量的剂量沉积。同时，用〜（60）Co的伽马射线照射孢子，并将其相对生物学效应与软X射线产生的那些进行比较。结果表明，与C，N元素的K壳边缘附近的X射线相比，O元素的K壳边缘附近的软X射线具有更高的辐射损伤能力。但是它们每单位剂量的杀伤能力都比〜（60）Co的伽玛射线高。三种软X射线的相对生物学效应（RBE），在10％生存水平下与γ射线的剂量比较分别为1.65、1.73和1.91。

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