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Bulletin of Materials Science

, Volume 29, Issue 2, pp 119–122 | Cite as

Thermoluminescence dosimetry of rare earth doped calcium aluminate phosphors

  • K. Madhukumar
  • K. Rajendra Babu
  • K. C. Ajith Prasad
  • J. James
  • T. S. Elias
  • V. Padmanabhan
  • C. M. K. Nair
Ceramics and Glasses

Abstract

The thermoluminescence (TL) properties of calcium aluminate (CaAl2O4) doped with different rare earth ions have been studied and their suitability for radiation dosimetry applications is discussed. It is observed that monocalcium aluminate doped with cerium is a good dosimeter having linear response up to about 4 kGy of radiation doses. Dopant concentration of 0.25 mol% cerium gives maximum TL emission. The well-defined single peak observed at 295°C can be advantageously used for high temperature dosimetry applications.

Key words

Photoluminescence thermoluminescence radiation dosimetry 

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Copyright information

© Indian Academy of Sciences 2006

Authors and Affiliations

  • K. Madhukumar
    • 1
  • K. Rajendra Babu
    • 1
  • K. C. Ajith Prasad
    • 1
  • J. James
    • 1
    • 2
  • T. S. Elias
    • 1
    • 2
  • V. Padmanabhan
    • 1
    • 3
  • C. M. K. Nair
    • 1
  1. 1.Department of PhysicsMahatma Gandhi CollegeThiruvananthapuramIndia
  2. 2.Regional Research LaboratoryThiruvananthapuramIndia
  3. 3.Regional Cancer CentreThiruvananthapuramIndia

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