January 2023
radiography museology

The Colonial Williamsburg Foundation (CWF) is the oldest and largest living history museum in the United States, offering access to a 301-acre Historic Area and outstanding museum exhibits for visitors. It is an active site for archaeology and research, with significant cultural collections, such as decorative art, American folk art, and architectural materials. The Foundation’s collections represent a wide range of media such as paper, ceramics, textiles, various metals and wood.

As part of their meticulous investigation into the history and construction of these objects, as well as repairs and changes that may have been performed in the past, CWF recently added DÜRR NDT Computed Radiography (CR) and Direct Radiography (DR) capability to their X-ray lab, replacing their outdated film radiography process. The HD-CR 35 scanner and DRC 2430 digital detector array (DDA) eliminate the need for manual film developing and chemistry management, and no longer needing a darkroom liberates valuable space.

The flexibility of the new equipment, along with the ease-of-use of DÜRR’s D-Tect X software, means that the large group of conservators can more efficiently and quickly perform their investigative tasks and share the resulting images with their peers.

As an example, this CR image of a painting of Susanna Cardwell McCausland (attributed to Joshua Johnson and dated ca. 1805) clearly shows canvas repair as well as underlying paint lines which provide evidence that the artist has changed his original composition during creation. Because CR uses thin flexible imaging plates (IPs), it was possible to safely insert the IP between the canvas and the wooden stretcher to eliminate interference from the frame structure while capturing this image.

Another example where CR is the preferred method of image capture is where IP flexibility is important. In this example the IP was placed inside a large glazed ceramic mug (ca. 1815) in order to image one side without interference from the other. The resulting image clearly shows that the vessel has suffered significant damage and has been repaired with metal rivets, indicating that it was highly valued. Because the mug’s repairs had been completely painted over, the extent of the damage was only revealed using radiography.

Read the whole article here

More about radiography solutions read here

2022. © Kontroltest International d.o.o.

Contact us

Receive the latest news

Subscribe To Our Newsletter