D. Wannawikorn, P. Potup, K. Utitsarn, and S. Sookpeng, “The study of characteristic of optically stimulated luminescence NanoDot dosimeter for 6 megavoltage x-ray energy in radiotherapy”, J Thai Assn of Radiat Oncol, vol. 26, no. 2, pp. R14-R29, Jul. 2020.