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Thermoluminescence of rare earth doped BaSO4 phosphors and its applications

1982; Pergamon Press; Volume: 33; Issue: 3 Linguagem: Inglês

10.1016/0020-708x(82)90108-9

1878-1284

J.S. Nagpal, Geetha Varadharajan,

Solid-state spectroscopy and crystallography

Thermoluminescence of synthetic BaSO4 samples individually doped with Y, La, Ce, Pr, Nd, Sm, Eu, Tb, Dy and Tm has been studied after γ- and microwave irradiations. BaSO4: Eu has the highest response for γ-radiation while BaSO4: Tb exhibits highest reduction in its γ-induced TL after exposure to microwave radiation (2425 ± 25 MHz). The reduction depends on the microwave radiant exposure and is independent of the irradiance level in the range 25−200 mW · cm−2 and hence can be useful for microwave dosimetry.