Reconstructing Cosmic Ray Air Showers With IceCube

用 IceCube 重建宇宙射线空气淋浴

• 批准号: 1068495
• 负责人: Katherine Rawlins
• 金额: $ 11.84万
• 依托单位: University of Alaska Anchorage Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-04-15 至 2015-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1068495&HistoricalAwards=false
• 关键词: Reconstructing; Cosmic; Ray; Air; Showers

Cosmic ray collisions in the upper atmosphere produce extensive air showers of particles which are detectable at Earth. The IceCube Observatory, a versatile particle detector at the South Pole, is a powerful tool for studying these mysterious high-energy cosmic particles. Measuring the size or energy of cosmic ray events is an important overall goal of the IceCube Observatory. Such measurements are crucial for studying any aspect of these particles, especially their energy spectrum and mass composition. The surface detectors of IceCube (known as IceTop) are covered by snow, and this attenuates the signals in the detectors. This award will enable the group to develop a reconstruction algorithm which corrects for the attenuating effect of snow coverage. In addition, this group will study the composition of cosmic rays and how the IceCube Observatory can distinguish between heavy and light cosmic ray primaries. UAA draws students from all over the state of Alaska. This project presents a unique learning opportunity for UAA undergraduates, an opportunity not only to participate in active research and discovery, but also to be a part of a large international effort.

高层大气中的宇宙射线碰撞产生了在地球上可以探测到的大量粒子的空气骤雨。冰立方天文台是位于南极的多功能粒子探测器，是研究这些神秘的高能宇宙粒子的强大工具。测量宇宙线事件的大小或能量是冰立方天文台的一个重要总体目标。这样的测量对于研究这些粒子的任何方面，特别是它们的能谱和质量组成都是至关重要的。冰立方(IceTop)的表面探测器被雪覆盖，这削弱了探测器中的信号。这一奖项将使该小组能够开发出一种重建算法，纠正积雪覆盖的衰减效应。此外，该小组还将研究宇宙线的组成，以及冰立方天文台如何区分重宇宙线和轻宇宙线。UAA吸引了来自阿拉斯加州各地的学生。该项目为UAA本科生提供了一个独特的学习机会，不仅是参与积极的研究和发现的机会，也是参与大型国际努力的一部分。