Cao, Thanh Long, Trung Hieu Nguyen, Quoc Dung Tran, and Dong Phuong Huynh. 2017. “Some Initial Results of Simulating a Positron Beam System by Using SIMION”. Nuclear Science and Technology 7 (3):17-24. https://doi.org/10.53747/jnst.v7i3.100.