A rapid method using the gamma scattering technique to estimate the pipe-line thickness - nguyên, Võ; Chương, Huỳnh; Thông, Nguyễn; Nhẫn, Huỳnh; Bảo, Nguyễn; Thảo, Lê; Thanh, Trần; Tạo, Châu (VNUHCM Journal of Advanced Research in Natural Sciences, 2021)