An Examination of Armor Using X-ray Radiography and X-ray Fluorescence Analysis
At the request of the Kariya city Museum of History, INUZUKA Masahide of the Center for Conservation Science, conducted an analytical survey of a suit of armor. As part of these materials, the helmet became a designated cultural property of Kariya City in 1984. The location of items other than the helmet, such as the torso of the armor, only came to light a few years ago. The degree of damage to these other parts of the suit armor is much more severe than to the helmet, but they were additionally designated as cultural heritage by Kariya city in 2019 and deposited at the Museum.
A project to preserve and restore these materials will be implemented in the future. To collect basic data for this purpose, a structural survey using X-ray radiography and a pigment analysis using X-ray fluorescence analysis were conducted at Tokyo National Research Institute for Cultural Properties on May 31, 2021.
Images taken with X-ray radiography provided information on the structure of the helmet and torso, the number of components that comprise the armor, the position and number of studs, and other information. We also conducted an X-ray fluorescence analysis of the pale orange-colored portion on the surface of the helmet, leveraging a device that specializes in analyzing cultural properties, which are large in size and have a three-dimensional structure, with high sensitivity, as shown in the photograph. The results of these surveys will be used as reference materials for future restoration work.