Calibration test of a detector for cosmic-ray electrons and gamma rays at CERN-SPS

研究了宇宙射线探测器CALET的性能，并用CERN-SPS加速器对其进行了标定。我们分析了每个探测器层的能量沉积，重建了淋浴轴，并分离了电子和质子。结果，我们获得了能量分辨率、角分辨率和对质子的排斥能力。我们将它们与模拟结果进行了比较，提高了我们对模拟的理解，这对飞行模型的数据分析是必不可少的。

We studied the performance of cosmic-ray detector CALET and calibrated it with the CERN-SPS accelerator. We made analyses of energy deposits in each detector layer, reconstruction of shower axes, and separation of electrons and protons. As a result, we obtained energy resolutions, angular resolutions, and rejection powers against protons. We compared them with simulated results, and it improved our understanding of the simulations which would be indispensable for data analyses of a flight model.