Premium
Time‐domain imaging system in the terahertz range for immovable cultural heritage materials
Author(s) -
Giovannacci David,
Cheung Hoi Ching,
Walker Gillian C.,
Bowen John W.,
MartosLevif Dominique,
Brissaud Didier,
Cristofol Lilian,
Mélinge Yannik
Publication year - 2019
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/str.12292
Subject(s) - terahertz radiation , cultural heritage , optics , materials science , infrared , laser , optoelectronics , remote sensing , physics , geography , archaeology
In the field of cultural heritage science, the use of non‐destructive and contact‐free techniques has increased sharply over the past 10 years. Compared with conventional spectroscopic and imaging techniques such as X‐ray, ultraviolet, infrared, and laser spectroscopy, terahertz time‐domain imaging (THz‐TDI) is an innovative, non‐invasive, and safe technique, which provides good penetration depth (~1 cm) and broad spectral bandwidth (0.1–10 THz). This paper sets out the protocol and methodology for the application of THz‐TDI to immovable cultural heritage, illustrated by a series of case studies. The case studies demonstrate the efficacy of the technique in providing structural and material information for conservators.