Non-invasive detection of murals with pulsed terahertz reflected imaging system

Minjie Yuan; Wenfeng Sun; Xinke Wang; Jiasheng Ye; Sen Wang; Qunxi Zhang; Yan Zhang

doi:10.1117/12.2210740

5 November 2015 Non-invasive detection of murals with pulsed terahertz reflected imaging system

Minjie Yuan, Wenfeng Sun, Xinke Wang, Jiasheng Ye, Sen Wang, Qunxi Zhang, Yan Zhang

Proceedings Volume 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015; 979534 (2015) https://doi.org/10.1117/12.2210740
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held June-July 2015, 2015, Hefei, Suzhou, and Harbin, China

Abstract

Pulsed terahertz reflected imaging technology has been expected to have great potential for the non-invasive analysis of artworks. In this paper, three types of defects hidden in the plaster used to simulate the cases of defects in the murals, have been investigated by a pulsed terahertz reflected imaging system. These preset defects include a circular groove, a cross-shaped slit and a piece of “Y-type” metal plate built in the plaster. With the terahertz reflective tomography, information about defects has been determined involving the thickness from the surface of sample to the built-in defect, the profile and distribution of the defect. Additionally, three-dimensional analyses have been performed in order to reveal the internal structure of defects. Terahertz reflective imaging can be applied to the defect investigation of the murals.

Citation Download Citation

Minjie Yuan, Wenfeng Sun, Xinke Wang, Jiasheng Ye, Sen Wang, Qunxi Zhang, and Yan Zhang "Non-invasive detection of murals with pulsed terahertz reflected imaging system", Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 979534 (5 November 2015); https://doi.org/10.1117/12.2210740

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