Yangbajain Cosmic Ray Observatory——The world's largest experimental base on high elevation  

作　　者：Tan Youheng(CAS Institute of High Energy Physics) 

出　　处：《Bulletin of the Chinese Academy of Sciences》2004年第1期58-62,共5页中国科学院院刊（英文版）

摘　　要：Cosmic rays are flows of highenergy particles coming from the deep of the universe as material samples voluntarily making their way to the Earth from an extra-terrestrial origin. They are involved with some key, unsolved and long-standing puzzles on the cosmic history, evolution of celestial bodies,spatial environment etc. On the Earth's surface, the observation of the primary cosmic rays is to detect the groups of secondary particles resulting from the interaction between them and the atomic nuclei of the atmosphere - the extensive air shower (EAS).

关 键 词：宇宙射线天文台 高能粒子 空气簇射 EAS 大气层 

分 类 号：P1[天文地球—天文学]