Cao TL, Nguyen TH, Tran QD, Huynh DP. Some initial results of simulating a positron beam system by using SIMION. Nucl. Sci. and Tech. [Internet]. 2017Sep.30 [cited 2025Aug.30];7(3):17-24. Available from: http://45.120.228.68/index.php/nst/article/view/100