Manolopoulou, M., M. Fragopoulou, S. Stoulos, C. Koukorava, and M. Zamani. “Energy Calibration of He-3, He-4 Neutron Proportional Counters”. HNPS Advances in Nuclear Physics 13 (February 20, 2020): 222–227. Accessed April 28, 2024. https://eproceedings.epublishing.ekt.gr/index.php/hnps/article/view/2972.