Calibrations of atmospheric fluorescence detectors of the Telescope Array experiment using a portable UV laser

为了研究宇宙中的极高能量现象，如活动星系核喷流、碰撞星系和星系团中的内激波，我们研制了一个巨大的空气簇射探测器来测量极高能量的宇宙线，并确定它们在美国犹他州的到达方向、能量和物种，我们从2008年开始与日本、美国、韩国和俄罗斯的研究活动合作使用这台探测器。在这项研究中，我们开发了一种用于空气簇射探测器能量校准的“标准蜡烛”，这是一个安装在转向架上的便携式UV激光器。研制成功的紫外光激光光源具有足够的系统精度。将在实验场使用直线加速器同步开始全尺寸操作。

In order to study extremely high energy phenomena in the Universe, such as AGN jets, colliding galaxies and internal shocks in galaxy clusters, we developed ahuge air shower detector to measure extremely high energy cosmic rays and determinedtheir arrival directions, energies and species in Utah, USA, and we operate this detectorfrom 2008 with a collaboration of research activities from Japan, USA, South Korea andRussia. In this research, we developed a "standard candle" for the air shower detector's energy calibrations, which is a portable UV laser on a steering mount. This UV laser light source was completed and confirmed to have enough systematic accuracies. The full-scaleoperations will be started in step with a linear accelerator in the experimental site.