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- Trace elements (1) (entfernen)
In this study, we address the question of the
provenance and origin of the Dead Sea Scrolls manuscripts.
A characteristic low ratio of chlorine to bromine, corresponding
to that of the Dead Sea water, may serve as an indicator for
local production. For this aim we developed a non-destructive
procedure to determine the Cl/Br ratio in the parchment of
these manuscripts. Micro-X-ray fluorescence (µ-XRF) measurements
of a large number of parchment and leather
fragments from the Dead Sea Scrolls were analyzed with a
routine we developed based on fundamental parameter
quantification. This routine takes into account the absorption
of the collagen matrix and the influence of the different sample
thicknesses. To calculate the representative Cl/Br ratio for each
fragment, we investigated the lateral homogeneity and
determined the total mass deposition using the intensity of
the inelastically scattered, characteristic tube radiation. The
distribution of the Cl/Br ratios thus obtained from the µ-XRF
measurements make it possible to distinguish fragments
whose origin lies within the Dead Sea region from those
produced in other locations.