Choose another division
Electrical semiconductor characterization
Luminescence dating, research, dosimetry and more
Free radical measurements in life science and biomedical applications
the most sensitive TL/OSL reader
the most advanced TL/OSL reader
beta irradiator (90Sr/90Y) for exposure of myOSL dosimeter
most advanced OSL dosimetry reader
for routine TL dosimetry and dating
a PC controlled dosimetry device for CTA dosimeter readout
for checking irradiated food according to EN 13751:2009 standard
Portable Spectrofluorimeter for non-invasive analysis of cultural heritage artworks using LED sources
TL - OSL/PSL - Radioluminescence - Electron spin resonance (ESR) - Neutron dosimetry - Food irriadiation - Clinical dosimetry
Luminescence spectroscopy - Spatially resolved luminescence - Time resolved luminescence - Electron spin resonance (ESR)
OSL dating - IRSL dating - Radiofluorescence - ESR dating of quartz - Pulsing (mixed mineral samples)
Flint and heated rocks - Ceramics and pottery - Unheated rock surfaces - Tooth enamel and quartz grains - Sediment dating
User friendly operating software
LexEva is a newly released evaluation software developed for analysis in luminescence research and dating.
for routine TL dosimetry
at Freiberg Instruments
When rocks have been heated in antiquity the time of the last exposure to high temperatures can be determined
Rocks containing amorphous/microcrystalline SiO2 can be dated by luminescence methods when they have been heated to approximately 400°C. Such temperatures, whether accidentally or deliberately, are easily achieved in hearths and therefore the dated event relates to the heating of the flint in a prehistoric fire.
Quartz pebbles or sandstone with Optically Stimulated Luminescence (OSL)
Flint, chert, hornstone, sandstone, quartz pebbles with Thermoluminescence (TL)
Establishing chronostratigraphies for the Palaeolithic period (e.g. Valladas et al., 2013)
Applicable for almost the entire time span of human use of fire
Overview with specific application details for heated flint can be found in Richter (2007)
Orange-red TL detection allows the use of SAR protocols with increased performance of red-enhanced PMT in lexsyg devices
Richter D (2007) Advantages and limitations of thermoluminescence dating of heated flint from Paleolithic sites. Geoarchaeology 22, 671-683.
Valladas H, Mercier N, Hershkovitz I, Zaidner Y, Tsatskin A, Yeshurun R, Vialettes L, Joron J-L, Reyss J-L & Weinstein-Evron M (2013) Dating the Lower to Middle Paleolithic transition in the Levant: A view from Misliya Cave, Mount Carmel, Israel. Journal of Human Evolution 65, 585-593.