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arXiv 1101.3013physics.ins-dethep-ex
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一种用于液态氩TPC的光导探测器的演示

Demonstration of a Lightguide Detector for Liquid Argon TPCs

L. Bugel, J. M. Conrad, C. Ignarra, B. J. P. Jones, T. Katori, T. Smidt, H. -K. Tanaka

摘要:

我们报告了使用丙烯酸光导检测器系统在液氩中进行光检测的演示。这为开发用于大型液态氩时间投影室的廉价、大面积光收集系统提供了机会。该指南是由丙烯酸,与TPB嵌入在一个表面涂层与匹配的折射率。我们研究的早期闪烁光产生的5.3兆电子伏α的响应。我们测量的涂层响应平均为7至8个PE,而理想的预期平均为10个PE。我们估计光沿光导条的衰减长度大于0.5 m。涂层的响应和衰减长度可以得到改善,但是,我们表明,这些结果已经足够触发在一个大型检测器。

英文摘要:

We report demonstration of light detection in liquid argon using an acrylic lightguide detector system. This opens the opportunity for development of an inexpensive, large-area light collection system for large liquid argon time projection chambers. The guides are constructed of acrylic, with TPB embedded in a surface coating with a matching index of refraction. We study the response to early scintillation light produced by a 5.3 MeV alpha. We measure coating responses from 7 to 8 PE on average, compared to an ideal expectation of 10 PE on average. We estimate the attenuation length of light along the lightguide bar to be greater than 0.5 m. The coating response and the attenuation length can be improved; we show, however, that these results are already sufficient for triggering in a large detector.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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