4th Meeting X-ray techniques in investigations of the ... - CrysAC

APPLICATION OF X-RAY DUAL SOURCE
COMPUTED TOMOGRAPHY (DSCT)
IN INVESTIGATION OF THE OBJECTS OF
CULTURAL HERITAGE
Anna Mikołajska 1 , Małgorzata Urbańczyk
Zawadzka 2 , Robert Paweł Banyś 2
1 Jan �atejko Academy of �ine Arts in Krakow�
�aculty of Conser�ation and Restoration
of �orks of Art� Krakow� Poland
2 Center for Diagnosis Pre�ention and Telemedicine�
John Paul II �ospital� Krakow�
Poland
For over a century, X-ray radiation has
played an important role in the area of
the conservation and restoration of cultural
heritage objects. X-ray techniques
are amongst the most fundamental and
helpful methods used in the investigation
of art works.
This paper reviews the application of
X-ray Dual Source Computed Tomography
(DSCT) in the investigations of wooden
paintings and sculptures.
The idea behind Dual Source CT is quite
simple: it is merely using two X-ray sources
(at two di�erent kV levels simultaneously)
and two detectors at the same time. Using
such combination, it is possible to get
double temporal resolution, double speed,
and twice the power, while lowering dose
even further. The result are two spiral
data sets acquired in a single scan providing
diverse information. Dual Source CT
provides images of exceptional quality and
is an amazing tool not only in medicine but
also in the area of cultural heritage.
As a result, 2D and 3D images, permitting
the full volume inspection of an object,
were taken in totally non-destructive way.
The morphological and physical information
about the inner structure of the investigated
wooden objects were obtained,
revealing changes related to previous
restorations, as well as ageing e�ects.
31