丙烯酸树脂对高压氙气吸收的测量
Measurement of high-pressure xenon gas absorption in acrylic
摘要：
丙烯酸是一种受欢迎的结构材料，在实验中需要低背景，因为它的放射性纯度，机械加工性和机械强度。然而，其多孔性可能会导致显著的气体吸收，并影响检测器的长期稳定性。丙烯酸与其他探测器材料之间的相互作用成为探测器设计中的关键问题之一。本文对高压氙气在丙烯酸树脂中的吸收过程进行了定量测量。为测量设计了特定的设置，并进行了系统的测量以获得吸收量的结果：332 g丙烯酸树脂中有0.98 g氙。
英文摘要：
Acrylic is a popular structural material in experiments requiring low background because of its radio-purity, machinability, and mechanical strength. However, its porosity may cause significant gas absorption and influence the detector stability in the long term. The interaction between acrylic and other detector materials becomes one of the key concerns in the detector design. In this paper, we carry out an experiment to measure quantitatively the absorption process of high-pressure xenon gas into acrylic. A specific setup is designed for the measurement, and systematic measurements are done to obtain a result of the absorption amount: 0.98 g xenon into 332 g of acrylic.
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