PEN作为自否决结构材料在低本底实验中的应用
Usage of PEN as self-vetoing structural material in low background experiments
摘要：
PEN是一种工业聚酯塑料，作为一种新型塑料闪烁体，已引起物理界的兴趣。PEN在蓝色区域发光，这对于大多数光电传感器设备是理想的。此外，PEN具有优异的机械性能，并且已经实现了非常好的辐射不透性。因此，它是低背景实验中活性结构组分的理想候选物。一种可能的应用是用于在低温液体（LAr，LN 2）中操作的锗探测器的保持器。这种结构可以帮助排除表面和外部背景，提高实验的灵敏度。在这方面的贡献，研究\&D PEN概述和评价的第一个生产PEN结构的LEGEND-200实验报告。
英文摘要：
PEN is an industrial polyester plastic which has become interesting for the physics community as a new type of plastic scintillator. PEN scintillates in the blue regime, which is ideal for most photosensor devices. In addition, PEN has excellent mechanical properties and very good radiopurity has been achieved. Thus, it is an ideal candidate for active structural components in low-background experiments. One possible application are holders for germanium detectors operating in cryogenic liquids (LAr, LN2). Such structures can help to reject surface and external backgrounds, boosting the sensitivity of experiments. In this contribution, the R\&D on PEN is outlined and an evaluation of the first production of PEN structures for the LEGEND-200 experiment is reported.
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