Ring-Dosimeter (TLD)
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Thermoluminescence (TL) dosimetry is a widely used method for measuring personal dose. Our ring dosimeters are best suited for official monitoring of personal surface dose in photon or mixed photon and beta fields.
Our standard ring (type W) covers all common requirements for partial body dosimetry. For activities in radiation fields with very low energy, we offer you a special ring (type X) with extended measuring range.
Our rings are equipped with lithium fluoride detectors. In the type W ring, the detectors are doped with magnesium and titanium, while the type X ring uses detectors doped with magnesium and copper, which are covered by a thin Mylar film for the measurement of low-energy photons and betas.
When ionizing radiation hits the detector, energy is stored in the detector crystal. By heating, part of this energy is released again in the form of light. The light intensity is a measure of the absorbed radiation.
As an official personal dosimeter, our two types of finger ring dosimeter has a type test certificate from the Physikalisch-Technische Bundesanstalt (PTB).
Typically, ring dosimeters are worn on the finger for a wearing period of one month.
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