Jiao Jin-Long, He Shu-Kai, Deng Zhi-Gang, Lu Feng, Zhang Yi, Yang Lei, Zhang Fa-Qiang, Dong Ke-Gong, Wang Shao-Yi, Zhang Bo, Teng Jian, Hong Wei, Gu Yu-Qiu. Helium ions acceleration by ultraintense laser interactions with foil-gas targetJ. Acta Physica Sinica, 2017, 66(8): 085201. DOI: 10.7498/aps.66.085201