【摘要】 中国计量科学研究院NIM4 #激光冷却 铯原子喷泉钟实现了原子云 74cm喷泉 ,得到S N约 2 0 0的荧光飞行时间信号。文中介绍了对NIM4 #钟与上抛 回落 信号探测相关的改进 ,列举了喷泉参数 ,报导了喷泉实验和初步讨论更多还原

【Abstract】 The realization of 74 cm fountain of atomic clouds, obtaining fluorescence signal of time of flight with S/N～200, on NIM4# laser cooling - Cs atomic fountain clock is described. The improvements concerning launching - falling - signal detection are introduced, launching parameters listed, the fountain experiments are reported, and some preliminary discussions given.更多还原