Khaldun, M.I., Harto, A.W. and Sardjono, Y. 2017. An Optimization Design of Collimator in The Thermal Column of Kartini Reactor For BNCT. Indonesian Journal of Physics and Nuclear Applications. 2, 2 (Jun. 2017), 54–64. DOI:https://doi.org/10.24246/ijpna.v2i2.54-64.