Proposal to Operate and Analyze Data From the Fly

9321949 Sokolsky这笔拨款支持使用Fly's Eye探测器和该设备的原型改进的高分辨率（HiRes）版本进行研究，以研究迄今为止在地球上观测到或预计将观测到的最高能量的宇宙射线。自1993年3月以来，一个14镜原型高分辨率阵列在一个地点运行，一个4镜阵列在另一个13公里远的地点运行，自1994年年初以来在犹他州的杜格威试验场运行。两个阵列结合在一起，可以对阵雨方向进行立体重建。事件也在与CASA/MIA地面阵列和3.4公里远的Fly’s Eye II巧合时被探测到。犹他小组与来自哥伦比亚大学、伊利诺伊大学和澳大利亚阿德莱德大学的物理学家合作，试图确定宇宙射线初级的能量分布及其组成。这些研究的首要目标是确定来源并理解产生粒子能量的自然加速机制，这些粒子能量比任何用加速器获得的能量都要大得多。＊＊＊

9321949 Sokolsky This grant supports research with the Fly's Eye detector and prototype improved High Resolution (HiRes) versions of that device to study cosmic-rays at the very highest energies yet observed or expected to be observed on earth. A 14-mirror prototype Hi Res array has been in operation since March, 1993 at one site and a 4-mirror array at another, 13 km distant, has been in operation since the beginning of 1994 at the Dugway proving grounds in Utah. Together, the two arrays allow stereo reconstruction of shower directions. Events are also detected in coincidence with CASA/MIA ground array and with Fly's Eye II 3.4km distant. The Utah group in collaboration with physicists from Columbia University, the University of Illinois, and the University of Adelaide, Australia seek to determine the energy distribution of cosmic-ray primaries and their composition. The overarching goal of these studies is to identify sources and understand the natural accelerating mechanisms that produce particle energies much greater than any achieved with accelerators. ***