Study on influence of propellant flow rate on ECR ion source beam current Hao MOU, Hai GENG, Xianming WU, Yanxu PU, Renwei TAN and Juan YANG JNWPU, 42 5 (2024) 793-800 Published online: 06 December 2024 DOI: 10.1051/jnwpu/20244250793