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Relationship between blue color and radiation damage in calcite |
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| Authors: | T Calderon M Aguilar R Coy-Yll |
| Institution: | 1. Sec. Geología de la Rábida , Universidad de Sevilla , Huelva , Spain;2. Depto. Optica y Estructura de la Materia , Universidad Autonoma, Madrid, Spain and IBM Zurich Research Laboratory , 8803 , Rüschlikon , Switzerland;3. Depto. Cristalografía (F. Geología) , Universidad Complutense , Madrid , Spain |
| Abstract: | Abstract The origin of the blue color of calcites from Perewal (USSR) has been investigated. It is suggested that radiation-induced color centers (CO3 ?3, dislocation and twinning are involved in the coloring mechanism. Evidence is obtained from thermoluminescence and optical absorption of natural and X-irradiated calcite samples. |
| Keywords: | Thermally stimulated depolarization current High-energy ion irradiation Dielectric relaxation Kapton-H polyimide |