On the half-life of luminescence signals in dosimetric applications: A unified presentation

Pagonis V., Kitis G., Polymeris G. S.

PHYSICA B-CONDENSED MATTER, vol.539, pp.35-43, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 539
  • Publication Date: 2018
  • Doi Number: 10.1016/j.physb.2018.03.054
  • Journal Name: PHYSICA B-CONDENSED MATTER
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.35-43
  • Keywords: Half-life of luminescence signals, General and mixed order kinetics, OTOR model, Delocalized/localized transition model
  • Ankara University Affiliated: Yes

Abstract

Luminescence signals from natural and man-made materials are widely used in dosimetric and dating applications. In general, there are two types of half-lives of luminescence signals which are of importance to experimental and modeling work in this research area. The first type of half-life is the time required for the population of the trapped charge in a single trap to decay to half its initial value. The second type of half-life is the time required for the luminescence intensity to drop to half of its initial value. While there a handful of analytical expressions available in the literature for the first type of half-life, there are no corresponding analytical expressions for the second type.