Yu Jin-Qing, Zhou Wei-Min, Jin Xiao-Lin, Li Bin, Zhao Zong-Qing, Cao Lei-Feng, Dong Ke-Gong, Liu Dong-Xiao, Fan Wei, Wei Lai, Yan Yong-Hong, Qian Feng, Yang Zu-Hua, Hong Wei, Gu Yu-Qiu. The effect of the proton layer initial size on the proton beam characteristic in target normal sheath accelerationJ. Acta Physica Sinica, 2012, 61(17): 175202. DOI: 10.7498/aps.61.175202