Feng Kai-Yuan, Shao Fu-Qiu, Jiang Xiang-Rui, Zou De-Bin, Hu Li-Xiang, Zhang Guo-Bo, Yang Xiao-Hu, Yin Yan, Ma Yan-Yun, Yu Tong-Pu. Ultrashort pulsed neutron source driven by two counter-propagating laser pulses interacting with ultra-thin foilJ. Acta Physica Sinica, 2023, 72(18): 185201. DOI: 10.7498/aps.72.20230706