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

INTERFERENCE OF ART AND SCIENCE IN
THE VON LAUE HALL
Thomas Wroblewski
�amburger �ynchrotronstrahlungslabor
at Deutsches elektronen – �ynchrotron�
�amburg� Germany
In the Max von Laue year 2012, the PE-
TRA III experimental hall at DESY, Hamburg
will be devoted to the discoverer
of X-ray interferences. PETRA III is the
world’s most brilliant storage ring based
X-ray source. Fourteen undulators deliver
light to 30 experimental stations profiting
from the unique properties of PETRA
III. Due to its high energy of 6 GeV, hard
X-rays of high brilliance in the 100 keV
20
range can be generated, allowing nondestructive
high-resolution investigations
of bulky samples either by radiographic
techniques like tomography or using
X-ray di�raction. These techniques may
be complemented by X-ray spectroscopic
methods like fluorescence analysis and
X-ray absorption spectroscopy. Besides
these more or less conventional methods,
further techniques based on the unique
properties of the radiation from PETRA III
like high collimation and coherence may
be applied in the investigation of cultural
heritage objects. Phase contrast techniques
seem to be promising candidates.
The von Laue hall could become a place
where X-ray interferences enlighten art
even without the use of crystals.