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Electrical semiconductor characterization
Luminescence dating, research, dosimetry and more
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
using TL and PSL/OSL techniques
European standards DIN EN 13751 | DIN EN 1788
Food stuff often is irradiated with ionizing radiation for sterilisation purposes. This requires the detection and estimates of the applied doses. The attached mineral dust or the food itself serves as dosimeter.
TL/OSL to detect irradiation of e.g. spices
Presence/absence of signal specific features shows the irradiation
Dose estimates are possible for some materials
Jo, Y., Sanyal, B., Chung, N., Lee, H.-G., Park, Y., Park, H.-J., and Kwon, J.-H. (2015). Calibrated photostimulated luminescence is an effective approach to identify irradiated orange during storage. Radiation Physics and Chemistry 111, 81-86.
Photo Stimulated Luminescence (PSL)
Silicate minerals contained in food according EN 13751
Spices (dust attached to spices)
Shrimps (intestines contain dust/sand)
Silicate minerals extracted from food according to EN 1788
Herbs (dust attached to herbs)
For a detection of food irradiation with luminescence methods (EN1788, EN13751) the food has to be irradiated in the laboratory for comparison. The large doses required are achieved with the Xray Dose irradiator.