In micro-pattern gaseous detectors (MPGD) the evaluation of the space resolution with the charge centroid method provides large uncertainty when the incident particle is not perpendicular to the readout plane. An improvement of the position reconstruction is given by the microTPC (μTPC) algorithm: the three-dimensional reconstruction of the particle track inside the detector drift gap is performed using the arrival time of the induced signals on the readout. In this work we report the application of this method to the μ-RWELL detector that, combined with the charge centroid, allows to achieve an almost uniform resolution below 100 μm over a wide angular range.

在微模式气体探测器 (MPGD) 中，当入射粒子不垂直于读出平面时，使用电荷质心方法对空间分辨率的评估提供了很大的不确定性。microTPC (μTPC) 算法对位置重建进行了改进：使用感应信号在读数上的到达时间对探测器漂移间隙内的粒子轨迹进行三维重建。在这项工作中，我们将这种方法应用于 μ-RWELL 探测器，结合电荷质心，可以在很宽的角度范围内实现低于 100 μm 的几乎均匀的分辨率。