多垫picosec-micromegas检测器原型的时机性能

论文标题

多垫picosec-micromegas检测器原型的时机性能

Timing performance of a multi-pad PICOSEC-Micromegas detector prototype

论文作者

Aune, S., Bortfeldt, J., Brunbauer, F., David, C., Desforge, D., Fanourakis, G., Gallinaro, M., García, F., Giomataris, I., Gustavsson, T., Iguaz, F. J., Kebbiri, M., Kordas, K., Lampoudis, C., Legou, P., Lisowska, M., Liu, J., Lupberger, M., Maillard, O., Manthos, I., Müller, H., Oliveri, E., Papaevangelou, T., Paraschou, K., Pomorski, M., Qi, B., Resnati, F., Ropelewski, L., Sampsonidis, D., Scharenberg, L., Schneider, T., Sohl, L., van Stenis, M., Tsiamis, A., Tsipolitis, Y., Tzamarias, S. E., Utrobicic, A., Veenhof, R., Wang, X., White, S., Zhang, Z., Zhou, Y.

论文摘要

多垫picosec-micromegas是一种改进的检测器原型，具有分段阳极，由19个六边形垫组成。详细的研究是用在四个代表性垫上收集的数据中收集的数据进行的。我们证明，这种设备可扩展到更大的区域，可提供出色的时间分辨率和检测效率。正如从较早的单细胞设备研究中预期的那样，我们测量了大约25张平克秒的时间分辨率，用于在阳极垫中心附近撞击的带电颗粒，并在垫边缘上最多30张皮秒。在这里，我们详细研究了漂移间隙厚度非均匀性对时机性能的影响，并评估基于影响位置的校正，以在完整的检测器覆盖范围内获得均匀的时序响应。

The multi-pad PICOSEC-Micromegas is an improved detector prototype with a segmented anode, consisting of 19 hexagonal pads. Detailed studies are performed with data collected in a muon beam over four representative pads. We demonstrate that such a device, scalable to a larger area, provides excellent time resolution and detection efficiency. As expected from earlier single-cell device studies, we measure a time resolution of approximately 25 picoseconds for charged particles hitting near the anode pad centers, and up to 30 picoseconds at the pad edges. Here, we study in detail the effect of drift gap thickness non-uniformity on the timing performance and evaluate impact position based corrections to obtain a uniform timing response over the full detector coverage.

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