Sensor Alignment by Tracks
Sensor Alignment by Tracks
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发表时间：
2003-06
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通讯作者：
V. Karimäki;A. Heikkinen;T. Lampén;T. Lindén
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作者：
V. Karimäki;A. Heikkinen;T. Lampén;T. Lindén
在使用高分辨率探测器时，良好的几何校准至关重要。探测器中的各个传感器必须以优于固有分辨率的精度进行校准，通常为10µm。我们提出了一种有效的方法来执行精细校准的传感器位置的检测器组件由大量的像素和条带传感器。多达六个几何参数，三个位置和三个方向，可以计算每个传感器的粒子轨迹的基础上穿越检测器系统。该方法的性能与模拟轨迹和从实验数据重建的轨迹证明。我们还提出了一个简短的回顾文献中报道的其他对齐方法。
Good geometrical calibration is essential in the use of high resolution detectors. The individual sensors in the detector have to be calibrated with an accuracy better than the intrinsic resolution, which typically is of the order of 10µm. We present an effective method to perform fine calibration of sensor positions in a detector assembly consisting of a large number of pixel and strip sensors. Up to six geometric parameters, three for location and three for orientation, can be computed for each sensor on a basis of particle trajectories traversing the detector system. The performance of the method is demonstrated with both simulated tracks and tracks reconstructed from experimental data. We also present a brief review of other alignment methods reported in the literature.