Study on dose rate distribution inside diagnostic X-ray room by using MCNP5 code - Hong Truong, Loan; Nguyen, Thu; Doan, Hien; Tran, Khanh; Vo, Dung; Dang, Phuong; Thai, Phe; Lo, Son; Le, Xuan; Pham, Truc; Nguyen, Tuan (Science and Technology Development Journal, 2013)