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Thermoluminescence of ZnF2:Mn

S. JIPA1,2, T. ZAHARESCU1,* , W. KAPPEL1, M. SECU3, C. E. SECU3, M. LUNGULESCU1, A. MANTSCH1

Affiliation

  1. INCDIE ICPE CA, 313 Splaiul Unirii, P. O. Box 149, Bucharest 030138, Romania
  2. “Valachia” University of Targoviste, 18 – 22 Unirii Av., Targoviste 130082, Romania
  3. National Institute of Materials Physics (INCDFM), Bucharest – Magurele, Romania

Abstract

The thermoluminescence of undoped and Mn-doped ZnF2 was investigated at the dopant concentration of 1.5 % mole Mn after γ - ray irradiation at room temperature. The glow curve from undoped ZnF2 presents two peaks centered at 86°C and 273°C, while the ZnF2:Mn presents two peaks located at higher temperatures (325°C and 365°C), whose height ratio is modified with dose. The dose responses and fading process were also examined. The radiative thermostimulated recombination was found to be of the second kinetic order based on the geometric factor calculation. The trap parameters were obtained as activation energy and frequency factor..

Keywords

Thermoluminescence, Kinetic parameters, Zinc fluoride, Manganese activator.

Submitted at: Feb. 13, 2008
Accepted at: March 17, 2008

Citation

S. JIPA, T. ZAHARESCU, W. KAPPEL, M. SECU, C. E. SECU, M. LUNGULESCU, A. MANTSCH, Thermoluminescence of ZnF2:Mn, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 3, pp. 554-557 (2008)