• [1]

    . CHEN Jia-Er, FANG Jia-Xun, LI Wei-Guo et al. Progresson Natural Science, 2002, 12(1): 23(in Chinese)(陈佳洱，方家驯，李纬国等.自然科学进展，2002, 12(1): 23) 2. CHEN J E, YAN X Q, FANG J X et al. Proc. of EPAC2002, Paris3. YAN Xie-Qing, FANG Jia-Xun, WU Yu et al. Acta Phys-ica Sinica, 2002, 6(51): 1135(in Chinese)(颜学庆，方家驯，吴喻等.物理学报，2002, 6(51): 1135)4. LU Y R, GUO J F, LI W G et al. NIM, 1999, A420: 15. FANG J X, CHEN J E. IEEE. Trans. NS., 1985, 32(5):28916. CHEN J E, YANX Q, FANG J X et al. Proc.ofAPAC2004,Korea7. YAN X, CHEN J E, FANG J X et al. NIM, 2005, A539(3):606