Abstract The E1’ centre is one of the most common paramagnetic defects observed by electron spin resonance (ESR) in natural quartz, the formation of which is, however, quite complicated. The dose response to gamma ray irradiation of the E1’ centre in natural quartz was systematically investigated in the present study to find that its dose response depends on the heating conditions of the sample before irradiation. The signal intensity decreases on irradiation when quartz has been heated up to 300°C, while it increases when heated above 400°C. The phenomena can be explained by the electronic processes that heating supplies electronic holes to the oxygen vacancies while gamma ray irradiation supplies electrons.

中文翻译：

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石英 E1' 中心的剂量反应

摘要 E1'中心是天然石英中电子自旋共振（ESR）观察到的最常见的顺磁缺陷之一，但其形成过程相当复杂。本研究系统地研究了天然石英中E1'中心对伽马射线辐照的剂量响应，发现其剂量响应取决于样品辐照前的加热条件。当石英被加热到 300°C 时，信号强度在辐照时会降低，而当加热到 400°C 以上时，信号强度会增加。这种现象可以通过加热向氧空位提供电子空穴而伽马射线照射提供电子的电子过程来解释。