论文标题
未对准对高度颗粒量热量器的SIPM-on-tile技术响应均匀性的影响
Effects of misalignment on response uniformity of SiPM-on-tile technology for highly granular calorimeters
论文作者
论文摘要
瓷砖技术的SIPM技术由塑料闪烁瓷砖组成，其典型尺寸为几cm $^2 $安装在sipms之上，已在Calice Collaporation中开发，以启用自动化质量生产闪烁剂的高度颗粒状钙含量的活动元素。我们介绍了闪烁体瓷砖相对于光子传感器对响应均匀性以及不同尺寸的正方形，六边形和菱形闪烁体的绝对光屈服的影响的研究。未对准导致形成光产量空间分布的偶极子不对称，其幅度与位移的大小线性缩放，而瓷砖全部活性区域的平均光产率不受影响。这些结果为定义大量热量计系统生产和组装的公差定义提供了指导，表明对齐精度约为500 $ $ m或更好，可以将影响限制为可接受的水平。
The SiPM-on-tile technology, consisting of plastic scintillator tiles with typical sizes of a few cm$^2$ mounted on top of SiPMs, has been developed within the CALICE collaboration to enable automatized mass production of active elements for scintillator-based highly granular calorimeters. We present a study of the impact of misalignment of the scintillator tile with respect to the photon sensor on the response uniformity and on the absolute light yield for square, hexagonal and rhomboidal scintillator tiles of different sizes. A misalignment results in the formation of a dipole asymmetry of the spatial distribution of the light yield, with a magnitude that scales linearly with the size of the displacement, while the average light yield over the full active area of the tile is not affected. These results provide guidance for the definition of tolerances for the production and assembly of large calorimeter systems, showing that an alignment precision of approximately 500 $μ$m or better allows to limit the impact to acceptable levels.
