In the Solid State Chemistry Group at the Braunschweig University of
Technology several different methods can be used for the purpose of
datation of ancient manufacts.
The focus of the group is on spectroscopic in-situ methods, i.e.
experiments under temperature and gas-atmosphere control.
The following methods will be presented including some exemplary results:
- in-situ optical spectroscopy of single crystals and powders
- in-situ EPR spectroscopy of powders
- in-situ fluorescence spectroscopy of single crystals and powders
- in-situ Mössbauer spectroscopy of powders
- in-situ DTA (differential thermal analysis) of powders
In general there are two different methods for the solid state chemistry
analysis of these ancient manufacts.
1) The first is just to find any integral value (e.g. a signal intensity)
which can be used as a representative measure for the number of radiation
defects in the samples. EPR spectroscopy has turned out to be well suited
for this purpose.
2) To learn more about the nature of the defects, kinetic studies at
different temperatures seem to be a promising approach. If for example two
or more different activation energies could be found, this would support
the theory of different kinds of defects in the sample.