Proton induced luminescence of minerals
H. Calvo del Castilloa,b,d, A. Millán ª, P. Beneítez c, J.L. Ruvalcaba–Sil b, T. Calderónª
ª Depto. Geología y Geoquímica, Universidad Autonoma de Madrid, Ctra. Colmenar, km. 15, 28049, Madrid, Spain.
b Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica s/n, Ciudad Universitaria, México D.F 04510, México.
c Departamento Química Física Aplicada. Universidad Autónoma de Madrid Cantoblanco, Madrid, Spain.
d Centre Européen dArchéométrie – IPNAS, Université de Liège, Allée du 6 Août, BAT 15, 4000, Sart Tilman, Liège, Belgium.
]]>Recibido el 23 de marzo de 2007
Aceptado el 1 de febrero de 2008
Abstract
This paper presents a summary of Ionoluminescence (IL) for several minerals commonly found in jewellery pieces and/or artefacts of historical interest. Samples including silicates and non–silicates (native elements, halide, oxide, carbonate and phosphate groups) have been excited with a 1.8 MeV proton beam, and IL spectra in the range of 200– 900 nm have been collected for each one using a fiber optic coupled spectrometer. Light emissions have been related to Cr 3+, Mn2+ and Pr3+ ions, as well as intrinsic defects in these minerals. Results show the potential of IL for impurity characterization with high detection limits, local symmetry studies, and the study of the origin of minerals.
Keywords: Ionoluminescence; mineral; gemstone; light emission; defects; impurities.
Resumen
En este trabajo se presenta un resumen sobre la Ionoluminiscencia (IL) de varios minerales de uso común en piezas y/o artefactos de joyería de interes histórico. Las muestras estudiadas incluyen minerales del grupo de los silicatos y no silicatos (elementos nativos, haluros, óxidos, carbonatos y fosfatos) y fueron excitadas con un haz de protones de 1,8 Mev, siendo el espectro de IL recogido en el rango de 200–900 nm usando una fibra óptica acoplada a un espectrómetro. Las emisiones de luz detectadas han sido relacionadas con la presencia diversos iones en estos minerales, tales como de Cr 3+, Mn 2+ y Pr 3+ , así como a la presencia de defectos intrínsecos . Los resultados obtenidos muestran el potencial de IL para la caracterización de impurezas a bajo niveles de concentración, el estudio de simetrías locales y estudio de procedencia de minerales.
]]> Descriptores: Ionoluminiscencia; mineral; emision de luz; defectos; impurezas.
PACS: 78.60.Hk, 91.60.Ed, 61.72.Ss, 29.27.–a, 87.66.–a, 82.80.–d
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Acknowledgments
We wish to thank Dr. Ernesto Belmont from the IFIUNAM and the Escuela de Gemología of the UAM for kindly permitting us some of the minerals used in this work. We also wish to thank technicians K. López and F. Jaimes for their help at the Pelletron Acelerator of the IFIUNAM during the measurements, and Spanish Agencia Española de Cooperación Internacional Project AECI no. A/9332/07, UAM–SCH, México UNAM–DGAPA–PAPIIT IN403302 and IN216903, projects for financial support.
References
]]>1. T. Calderón, A. Millán, F. Jaque, and J. García–Solé, Nucl. Tracks Radiat. Meas. 17 (1990) 557. [ Links ]
2. H.M. Rendell, M.R. Khanlary, P.D. Townsend, T. Calderón, and B.J. Luff, Mineral Magazine 57 (1993) 217. [ Links ]
3. Gunnell and E. Mitchell, America Mineralogist 18 (1993) 68. [ Links ]
4. H. Rendell, T. Calderon, A. Pérez–González, J. Gallardo, A. Millán, and P.D. Townsend, Quaternary Geocronology 13 (1994) 429. [ Links ]
5. A.G. Wintle, Radiation Protection Dosimetry 47 (1993) 627. [ Links ]
6. M.J. Aitken, Science–based Dating in Archaeology (Longman, London, 1990). [ Links ]
7. Y. Sha, P. Zhang, G. Wang, X. Zhang, and X. Wang, Nucl. Instr. & Meth. B 189 (2002) 408. [ Links ]
8. C. Yang, K.G. Malmqvist, M. Elfman, P. Kristiansson, J. Palon, A. Sjöland, and R.J. Utui, Nucl. Instr. & Meth. B 130 (1997) 746. [ Links ]
9. O. Enguita et al., Nucl. Instr. & Meth. B 219/220 (2004) 53. [ Links ]
10. H. Calvo del Castillo et al., Nucl. Instr. & Meth. B 249,1/2 (2006)217. [ Links ]
11. H. Calvo del Castillo, J.L. Ruvalcaba, and T. Calderón, Anal. Bioanal. Chem. 387 (2007) 869. [ Links ]
12. T. Calderón et al., Radiat. Meas. 26 (1996) 719. [ Links ]
13. T. Calderón and R. Coy–Yull, Journ. Gemmology, XVIII (3) (1982) 217. [ Links ]
14. H.M. Rendell, M.R. Kahanlary, P.D. Townsend, T. Calderón, and B.J. Luff, Mineral Magazine 57 (1993) 217. [ Links ]
15. T. Calderón, M.R. Khanlary, H.M. Rendell, and P.D. Townsend, Nucl. Tracks Rad Meas. 20 (1992) 475. [ Links ]
16. E. Cantelar et al., Jour. Alloy & Compounds 323/324 (2001) 851. [ Links ]
17. A.M. Zaitsev, Optical properties of Diamond (Springer, Berlin, 2001). [ Links ]
18. C.M. Subramanian and M.L. Mukherjee, J. Mater. Sci. 22 (1987) 473. [ Links ]
19. S.A. Holgate, T.H. Sloane, P.D. Townsend, P.D. White, and A.V. Chadwick, J. Phys. Condens. Matter 6 (1994) 9255. [ Links ]
20. V.A. Skuratov, S.M. Abu Al Azm, and V.A. Altynov, Nucl. Instr. & Meth. B 191 (2002) 251. [ Links ]
21. W. Deer, R.A. Howie, and J. Zussman, The Rock Forming Minerals (Prentice Hall, London, 1992). [ Links ]
22. A.N. Tarashchan, Luminescence of minerals (Naukova Dumka, Kiev, 1978). [ Links ]
23. J.E. Geake and G. Walker, Infrarred and Raman spectroscopy of lunar and terrestrial minerals (Academic Press, New York, 1975) p. 73. [ Links ]
24. W.B. White, M. Masako, D.G. Linneham, T. Furukawa, and B.K. Chandrasekahr, Am. Mineral 71 (1986) 1415. [ Links ]
25. A.A. Finch and J. Klein, Contrib. Mineral Petrol. 135 (1999) 234. [ Links ]
26. A.S. Marfunin, Spectroscopy, Luminsecence and Radiation Centers in Minerals (Springer, Berlin, 1979) p.196. [ Links ]
27. E.M. Flangen, D.W. Breck, N.R. Mumbach, and A.M. Taylor, Am. Mineral. 52 (1967) 744. [ Links ]
28. H. Koyama, J. Appl. Phys. 51 (1980) 2228. [ Links ]
29. N. Itoh and A.M. Stoneham, Nucl. Instr. & Meth. B 146 (1998) 362. [ Links ]
30. G.H. Dieke, Spectra and Energy of Rare Earth Ions in Crystals (Wiley Interscience, New York, 1988). [ Links ] ]]>