Application of movable collimators to the BEPCⅡ

[1]
Zhemchugov A.Nuclear Physics B,2009,189:353-357[2] JIN Da-Peng et al.HEP NP,2003,27:846-851(in Chinese)[3] ZHOU Neng-Feng et al.HEP NP,2004,28(3):227-231(in Chinese)[4] JIN Da-Peng et al.HEP NP,2004,28:1197-1202(in Chinese)[5] JIN Da-Peng et al.HEP NP,2006,30:449-453(in Chinese)