Roppon Picha, Narut Simaroj, and Viwat Sangphet. “Designing a Transportable Neutron Radiography System”. Agriculture and Natural Resources 42, no. 5 (December 31, 2008): 305–310. accessed October 10, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/244612.