Siburian, Jans P B, Andang Widi Harto, and Yohannes Sardjono. “A Conceptual Design Optimization of Collimator With 181Ta As Neutron Source for Boron Neutron Capture Therapy Based Cyclotron Using Computer Simulation Program Monte Carlo N Particle Extended”. Indonesian Journal of Physics and Nuclear Applications 2, no. 2 (June 30, 2017): 83–90. Accessed July 14, 2025. https://ejournal.uksw.edu/ijpna/article/view/1343.