Journal of Radioanalytical and Nuclear Chemistry

, Volume 307, Issue 2, pp 1287–1293 | Cite as

Effect of the irradiation dose on the luminescence emission of a Mg-rich phyllosilicate

  • V. Correcher
  • Y. Rodriguez-Lazcano
  • R. Gomesdarocha
  • J. Garcia-Guinea


This paper reports on the thermoluminescence and cathodoluminescence behaviour of a well-characterized sepiolite (Si12Mg8O30(OH)4(OH2)4·8H2O). Both natural and induced thermoluminescence curves display a complex emission suggesting a continuum in the trap distribution involving multiorder kinetics. UV–IR cathodoluminescence spectral emission shows five wavebands at 330, 400 and 440 (associated with structural defects, [AlO4] or non-bridging oxygen hole centers) and 520 and 770 nm (linked to point defects). This daily-use material, that is of interest since could be employed for personal dosimetry in the case of radiation accident or radiological terrorism where conventional monitoring has not been established, were never investigated before.


Sepiolite Thermoluminescence Cathodoluminescence Accidental dosimetry 



This work was partially supported by the CNPQ, program Ciências sem Fronteiras (238437/2013-2).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  • V. Correcher
    • 1
  • Y. Rodriguez-Lazcano
    • 1
  • R. Gomesdarocha
    • 1
  • J. Garcia-Guinea
    • 2
  1. 1.CIEMATMadridSpain
  2. 2.CSIC. Museo Nacional Ciencias NaturalesMadridSpain

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