Dosimetric properties of natural brazilian topaz: A thermally stimulated exoeletronic emission and thermoluminescence study

Luminescence studies in swift heavy ion irradiated aluminum silicates

“…One of the advantages of the synthesized material is to control the composition, and so, the impurity of the starting materials used to prepare the solid state dosimeters. On the other hand, natural minerals are available in reasonably large quantities as well as at low expenses and found to play an important role in Archeology and Geology as some of these are found to have good potential for both dosimetric and TL dating materials [1,2]. Materials which show good TL response for low amount of radiations (dose from $10 À5 Gy to a few hundred Gys before reaching saturation) are found to be the best materials for TL dosimetric applications.…”

Optical absorption and luminescence studies of fast neutron-irradiated complex oxides for jewellery applications

“…Under the impact of fast neutron fluence of 10 , the intensity of 813 nm band reduces and the absorption edge shifts due to appearance of intense absorption band in the UV region. Besides, after irradiation an additional band arises with maximum at 690 nm, connected with zero phonon transition 4 A 2g (F) → 2 E g (G) in Cr 3+ ion. Dependence of the absorption band intensity at 813 nm (curve 1) and 694 nm (curve 2) on the fast neutron fluence in a pale blue beryl is shown on Fig.…”

“…-are used not only as gemstones but also used in practice. For example, topaz crystals are suitable material for dosimetric applications [1,2]. In turn, beryl crystals doped with transition metal ions find applications as laser materials [3].…”

Use of composites of topaz–glass as TSEE and TL dosemeters

“…The thermoluminescent (TL) properties of manufactured composites with a mixture of topaz-Teflon have been studied by our group since 2000, with the aim of developing a new solid-state dosemeter (1)(2)(3)(4) . In 2003 the first results of the TL response of topaz-glass composites prepared with a mixture of powdered topaz crystal and powdered commercial glass were presented (3) .…”