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首页> 外文期刊>Nuclear instruments and methods in physics research >Nuclear track detection using thermoset polycarbonates derived from pentaerythritol
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Nuclear track detection using thermoset polycarbonates derived from pentaerythritol

机译:使用季戊四醇衍生的热固性聚碳酸酯进行核径迹检测

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摘要

The paper describes the synthesis and performance of two polymers as nuclear track detectors, both having alpha sensitivity higher than that of the widely-used polymer CR-39. A homopolymer (PPETAC) from pentaerythritol tetrakis(allyl carbonate) (PETAC) monomer and its various copolymers with allyl diglycol carbonate (ADC) prepared by cast polymerization were successfully used as nuclear track detectors. The copolymer PETACADC 4:6 weight percent shows maximum alpha sensitivity, almost double that of CR-39 under identical experimental conditions. This copolymer can reveal alpha particle tracks from ~(239)Pu source in about 60 min and ~(252)Cf fission fragment tracks by chemical etching in less than 30 min, compared to about 120 min and 45 min respectively, required by CR-39. The polymers can be conveniently etched using aqueous sodium hydroxide.
机译:该论文描述了两种聚合物的合成和性能,它们均作为核径迹检测器,两者的α灵敏度均高于广泛使用的聚合物CR-39。由季戊四醇四(碳酸烯丙酯)(PETAC)单体制成的均聚物(PPETAC)及其与通过流延聚合制备的碳酸烯丙二酯(ADC)的各种共聚物已成功用作核径迹检测器。在相同的实验条件下,共聚物PETACADC 4:6重量百分比显示出最大的alpha敏感性,几乎是CR-39的两倍。该共聚物可在不到30分钟的时间内通过化学蚀刻显示来自〜(239)Pu来源的α粒子径迹和〜(252)Cf裂变碎片径迹,而CR-分别需要约120分钟和45分钟。 39。可以使用氢氧化钠水溶液方便地蚀刻聚合物。

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