Qi Gang, Huang Yin-Bo, Ling Fei-Tong, Yang Jia-Qi, Huang Jun, Yang Tao, Zhang Lei-Lei, Lu Xing-Ji, Yuan Zi-Hao, Cao Zhen-Song. Measurement of Rb isotope ratio by atomic absorption spectroscopy with multi-microchannel array structure cavityJ. Acta Physica Sinica, 2023, 72(5): 053201. DOI: 10.7498/aps.72.20221963