We report an electron paramagnetic resonance (EPR) study of gamma rays irradiation effects on an oxygen-deficient silica obtained from fused quartz. We have found that three types of E' centers, E'(x), E'(gamma) and E'(delta), and a paramagnetic defect in a spin triplet state (S = 1) are induced. The EPR signals dependence on the microwave power have been investigated. The concentrations of these centers as a function of gamma ray irradiation show that for high dose a limit value is reached suggesting a generation process from precursors.

S AGNELLO, BUSCARINO G, & FM GELARDI (2005). Growth of paramagnetic defects by gamma rays irradiation in oxygen-deficient silica. JOURNAL OF NON-CRYSTALLINE SOLIDS, 351(21-23), 1787-1790 [10.1016/j.jnoncrysol.2005.04.016].

Growth of paramagnetic defects by gamma rays irradiation in oxygen-deficient silica

AGNELLO, Simonpietro;BUSCARINO, Gianpiero;GELARDI, Franco Mario
2005

Abstract

We report an electron paramagnetic resonance (EPR) study of gamma rays irradiation effects on an oxygen-deficient silica obtained from fused quartz. We have found that three types of E' centers, E'(x), E'(gamma) and E'(delta), and a paramagnetic defect in a spin triplet state (S = 1) are induced. The EPR signals dependence on the microwave power have been investigated. The concentrations of these centers as a function of gamma ray irradiation show that for high dose a limit value is reached suggesting a generation process from precursors.
S AGNELLO, BUSCARINO G, & FM GELARDI (2005). Growth of paramagnetic defects by gamma rays irradiation in oxygen-deficient silica. JOURNAL OF NON-CRYSTALLINE SOLIDS, 351(21-23), 1787-1790 [10.1016/j.jnoncrysol.2005.04.016].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/7048
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