Programme

I.3 -- Invited, VCTP-48

Date: Monday, 31 July 2023

Time: 14:00 - 14:40

A heterogeneous and multilayered model with cylindrical configuration for thermoluminescence dating of ancient architectures: a case study with Oc Eo archaeological site in Vietnam

Phan Trong Phuc (1), Nguyen Thi Ngoc Hue (1), Pham Thi Hue (1), Tran Tuan Anh (2), Nguyen Khanh Trung Kien (3), Lo Thai Son (1), La Ly Nguyen (1), Tran Dong Xuan (4), Van-Phuc Dinh (5), Nguyen Hoang Long (1), Nguyen Van Tiep (6), Cao Dong Vu (2), Le Ngoc Thiem (7), Ngoc-Quynh Nguyen (7), Hoang Anh Tuan Kiet (8), Luu Anh Tuyen (1), Nguyen Quang Hung (4)

(1) Center for Nuclear Technologies, Vietnam Atomic Energy Institute, Ho Chi Minh City, Viet Nam (2) Dalat Nuclear Research Institute, Vietnam Atomic Energy Institute, Dalat City, Lam Dong Province, Viet Nam (3) Southern Institute of Social Sciences, Vietnam Academy of Social Sciences, Ho Chi Minh City, Viet Nam (4) Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Viet Nam (5) Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam (6) Institute of Physics, Vietnam Academy of Science and Technology, Hanoi City, Viet Nam (7) Institute for Nuclear Science and Technology, Vietnam Atomic Energy Institute, Hanoi City, Viet Nam (8) Department of Physics & Engineering, West Chester University of PA, West Chester, PA, USA

A heterogeneous and multilayered model with cylindrical configuration has been recently proposed for improving the traditional thermoluminescence dating (TL) technique. Application of the proposed model to four ancient architectures at the Oc Eo – Ba The archaeological site in Vietnam has shown that our model was able to accurately determine the chronologies of architectures having heterogeneous, multilayered and overlapped structures, while conventional spherical and homogeneous model predicted the chronological results of ten to several hundred years higher. Our proposed model also explicitly exhibited the significant contributions of excavation, destruction, and radiation shielding to the accurate determination of chronology. In particular, with this newly proposed model, we have shown the first scientific evidence for the formation of an overlapped architecture in an architectural assembly at Oc Eo – Ba The, namely there was an (older) architecture constructed around AD 794 and lasted for about 159 years before being destroyed, probably by the kingdom's historical upheavals. Since then, another (younger) architecture was built on top of the older one's foundation [1]. Reference: [1] Phan Trong Phuc, Nguyen Thi Ngoc Hue, Pham Thi Hue, Tran Tuan Anh, Nguyen Khanh Trung Kien, Lo Thai Son, La Ly Nguyen, Tran Dong Xuan, Van-Phuc Dinh, Nguyen Hoang Long, Nguyen Van Tiep, Cao Dong Vu, Le Ngoc Thiem, Ngoc-Quynh Nguyen, Hoang Anh Tuan Kiet, Nguyen Quang Hung, and Luu Anh Tuyen, Improved thermoluminescence dating for heterogeneous, multilayered, and overlapped architectures: A case study with the Oc Eo archaeological site in Vietnam, Journal of Archaeological Science (2023) (in press).

Presenter: Nguyen Quang Hung