Neutron tomography studies of buddhist bronze sculptures

We have developed neutron tomography as a new tool to study the interior of ancient works of art. The present paper details the principles of the method and summarizes also some of the latest results, particularly concerning Mongolian Buddhist statues of the 17./18th century. It is shown that offering deposits made of organic and ceramic materials, even when fully enclosed in a cast metallic statue, can be examined in a non-invasive way. Within certain limits this concerns composition, size, structure and position of the interior deposits. Such studies can contribute to understand the history of ritual practices and their goals. They can also contribute to evaluate whether a statue has been properly cleaned and filled during consecration and is therefore fit for religious service. Such studies can also help to form an opinion of whether a statue is genuine.