Track structure approach to the calculation of peak 5a to peak 5 (TLD-100) relative intensities following heavy charged particle irradiation.

A track structure approach to the calculation of the relative strength of localised and delocalised recombination mechanisms leading to composite glow peak 5 in LiF:Mg,Ti following heavy charged particle irradiation is described.

On the use of LiF:Mg,Ti thermoluminescence dosemeters in space--a critical review.

The use of LiF:Mg,Ti thermoluminescence dosemeters (TLDs) in space radiation fields is reviewed. It is demonstrated in the context of modified track structure theory and microdosimetric track structure theory that there is no unique correlation between the relative thermoluminescence (TL) efficiency of heavy charged particles, neutrons of all energies and linear energy transfer (LET). Many experimental measurements dating back more than two decades also demonstrate the multivalued, non-universal, relationship between relative TL efficiency and LET.

The composite structure of peak 5 in the glow curve of LiF:Mg,Ti (TLD-100): confirmation of peak 5a arising from a locally trapped electron-hole configuration.

The hypothesis that glow peak 5a arises from localised e-h capture is confirmed by the following experimental observations: (i) The high conversion efficiency (CE) (CE5a-->4 = 3 +/- 0.5) of peak 5a to peak 4 (a hole-only trap) deduced from detailed Im-Tstop optical bleaching studies at 310 nm compared to the much lower CE of peak 5 (an electron-only trap) (CE5-->4 = 0.0026+/-0.

Supralinearity of peaks 5a, 5 and 5b in TLD-100 following 6.8 MeV and 2.6 MeV He ion irradiation: the extended track interaction model.

The extended track interaction model (ETIM) is applied to the TL fluence response of peaks 5, 5b and 5a following 6.8 MeV and 2.6 MeV He ion irradiation of LiF:Mg,Ti (TLD-100).

Theory of heavy charged particle thermoluminescence response: the extended track interaction model.

The theory of heavy charged particle TL response is described in the framework of the extended track interaction model (ETIM) which includes an enhanced understanding of the role/parameters of the individual track (i.e. the track structure) which influence the track interaction effects, a more sophisticated treatment of track interaction effects as well as a revised analytical treatment of saturation effects based on knowledge of the dose-filling constants of the TCs and LCs.