Thermoluminescence and photoluminescence characteristics of K 2YF5: Tb3++PTFE irradiated with 90Sr/90Y beta particles

J. Azorín Nieto, N. M. Khaidukov, C. Baillet Guerrero, J. C. Azorin Vega, T. Rivera Montalvo, A. Gallegos Cuellar, J. A.I. Díaz Góngora, P. R. González Martinez

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

This article presents results of thermoluminescence (TL) and photoluminescence (PL) measurements performed on beta-irradiated K 2 YF 5:Tb 3+ +PTFE pellets. K 2 YF 5 crystals doped with 0.1% of trivalent optically active Tb 3+ ions in pellets form were investigated. The TL glow curve of K 2 YF 5:Tb 3+ +PTFE has a simple structure with two well-defined peaks centered at 170 and 307°C. The TL sensitivity of the K 2 YF 5:Tb 3+ +PTFE irradiated with beta radiation was found to be higher than that of commercial phosphor TLD-100 (LiF:Mg,Ti), at the same conditions of irradiation and readout. Moreover, PL measurements performed on the terbium doped material show the presence of Terbium as Tb 3+ in the material.

Original languageEnglish
Pages (from-to)443-449
Number of pages7
JournalRadiation Effects and Defects in Solids
Volume161
Issue number8
DOIs
StatePublished - 1 Aug 2006
Externally publishedYes

Keywords

  • Beta radiation
  • Double fluorides
  • Phosphors
  • Thermoluminescence

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