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热释光、光释光以及电子自旋共振测年实验室研究的主要对象是砂石、岩矿、化石等,核辐射对这类物质的作用又是这几种方法测定年龄的基本依据。实验室的辐照装置所提供辐射剂量的准确度,直接影响着测出的年龄数据,因此,对辐射场的剂量测定乃是测年实验室一项日常的工作。然而,适合于岩矿、化石等这类物体吸收剂量测定用的剂量计,市面上还没有产品供应。为此,作者研究了铁-石英体系在各类辐射作用下的一些特征,发现它在0.1～100kGy,对3种辐射的热释光响应都存在着稳定的关系。于是,采用了细颗粒制样技术与惯用的测年方法一样,把它沉积在样品碟上,当作热释光剂量元件使用,直接给出吸收剂量。我们把它定名为QF301.QF301是一种红色粉末,颗粒直径小于10μm,平均分子量为134.8,比重为3.36mg/cm~3,熔点1500℃,不溶于水、丙酮和乙醇等化学溶剂,不受潮解,常温下可以长期保存。
Thermoluminescence, photoluminescence and electron spin resonance dating Laboratory research is the main object of sand, rock, fossil, etc., the role of nuclear radiation on these substances is the basis of these methods to determine the age of the basic. The accuracy of the radiation dose delivered by the laboratory’s irradiation devices has a direct impact on the measured age data, so the dose measurement of the radiation field is a routine work in a dating laboratory. However, dosimeters suitable for the measurement of absorbed doses of rocks, fossils and the like are not available in the market. To this end, the authors studied some features of iron-quartz systems under various types of radiation and found that there is a stable relationship between the thermoluminescence response of the three radiation types at 0.1-100 kGy. As a result, the fine particle sample preparation technique, like the usual dating method, is deposited on a sample dish and used as a thermoluminescent dose element to give the absorbed dose directly. We name it QF301.QF301 is a red powder with a particle diameter of less than 10μm, an average molecular weight of 134.8, a specific gravity of 3.36mg / cm 3, a melting point of 1500 ℃, insoluble in water, chemical solvents such as acetone and ethanol, Solution, at room temperature can be long-term preservation.