Radiation Effects and Oxygen Vacancies in Silicates

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Science  01 May 1970:
Vol. 168, Issue 3931, pp. 570-571
DOI: 10.1126/science.168.3931.570


Proton and electron irradiation of silicates, minerals, and rocks produces a paramagnetic defect whose resonance spectrum is identical to that of the singly charged oxygen vacancy in silica glass and α-quartz. It is suggested that this defect is characteristic of all structures containing SiO4 tetrahedra. Cracks, fracturing, and electric discharges have been observed after irradiation in planes determined by the particle ranges. These processes may contribute to the erosion materials.

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