There are three beam lines in south direction of BRIF:two neutron source and single particle effect beam line.In 2016,the construction and commission of these beam lines have been finished.The south beam lines under construction are shown in Fig.1.The proton beam extracted from There are three beam lines in the south direction of BRIF: two neutron sources and single particle effect beam lines. In 2016, the construction and commission of these beam lines have been finished. The south beam lines under construction are shown in Fig.1. proton beam extracted from