External beam for the Heavy Ion Accelerator Facility S. Shaharuddin, J. Stuchbery, E. C. Simpson, Z. K. Gan, A. C. Green, A. Cho and E. Lu EPJ Web Conf., 232 (2020) 01005 Published online: 06 April 2020 DOI: 10.1051/epjconf/202023201005