Theory of heavy charged particle response (efficiency and supralinearity) in TL materials

Y. S. Horowitz, O. Avila, M. Rodriguez-Villafuerte

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170 Scopus citations


We describe the theory of heavy charged particle (HCP) response (efficiency and supralinearity) in thermoluminescent (TL) materials. The HCP TL relative efficiency is treated in the framework of modified track structure theory (MTST) using Monte Carlo (MC) calculations of radial dose distributions in condensed phase LiF. HCP TL fluence response is modelled in the framework of the extended track interaction model (ETIM) which treats both HCP fluence response supralinearity and saturation using trapping centre (TC) and luminescent centre (LC) radial occupation density profiles. These are based on the MC radial dose distributions and experimental measurements of optical absorption and sensitisation dose response. Analytical ETIM calculations (up to fourth-order nearest-neighbour track interactions) are used to model the TL fluence response of the components of composite peak 5 in LiF:Mg,Ti (TLD-100). Monte Carlo track interaction calculations (MCTIM) are also described which can model even higher-order near est-neighbour track interactions appropriate to the high temperature peaks in LiF:Mg,Ti (TLD-100), and as well, model the HCP TL fluence response in both parallel and non-parallel HCP beam geometries.

Original languageEnglish
Pages (from-to)85-112
Number of pages28
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-2
StatePublished - 1 Sep 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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