Role of alkali ions in limiting the capacity of the 110°C peak of quartz to remember the firing temperature

Koul, D.K.

doi:10.1016/j.apradiso.2005.07.008

Cited by 17 publications

(8 citation statements)

References 23 publications

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“…This reduction is supposed to be related to the movement of alkali-ions during annealing which results in the restoration of the quartz crystal lattice to the as grown state. These interstitials, which act as charge compensators, play a major role in the kinetics of various centers present in quartz [31]. In as grown state it is presumed that they are localized next to substitutional Al 3+ ion, but, at an annealing of >200°C they become mobile and their final destination, eventually, leads to the formation of E 0 1 -centre, via an unknown precursor [32].…”

Section: Defect Centresmentioning

confidence: 98%

Possibility of pure thermal sensitization in the pre-dose mechanism of the 110°C TL peak of quartz

Koul¹,

Polymeris²,

Tsirliganis³

et al. 2010

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Defect Centresmentioning

confidence: 98%

Possibility of pure thermal sensitization in the pre-dose mechanism of the 110°C TL peak of quartz

Koul¹,

Polymeris²,

Tsirliganis³

et al. 2010

Nuclear Instruments and Methods in Physics Research Section B:

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“…The various aspects involved in this measurement were analysed to ascertain the applicability of the technique [84]. In this direction the role of alkali ions was postulated to limit the capacity of the 110 • C peak of quartz to remember the firing temperature using pre-dose sensitization technique [85]. Recently, the applicability of the pre-dose OSL along with the pre-dose of the 110 • C signals for the firing temperature estimation indicated that the overall pattern of the sensitization curves in the case of both TL and OSL emissions seem to carry the signatures of the phase transition rather than the firing temperature mark (figure 12) [83].…”

Section: Estimation Of Firing Temperaturementioning

confidence: 99%

110°C thermoluminescence glow peak of quartz — A brief review

Koul

2008

Pramana - J Phys

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The 110 • C glow peak of quartz, though unstable at room temperature, has worked wonderfully in archaeology and retrospective dosimetry due to its pre-dose sensitization property. Various aspects of the peak, like its nature, defect centres involved, the impact of different stimuli and its application have been extensively studied. The main aims of this review are to (i) summarize briefly the work carried out on the various facets of this TL glow peak during the last four decades and (ii) identify the areas which need further attention in order to have a better understanding of the luminescence characteristics of this TL peak.

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“…The presence of the competitor has, also, been found necessary in order to explain the thermal sensitization of the 110 • C TL peak (Poolton et al, 2000). It is the removal of the competitors, presumed to be E / 1 -centers, which has been observed to explain this sensitization (Koul, 2006). More than one R centers have been proposed in order to take into account the phenomena like thermal activation characteristics (TAC), isothermal sensitization and the nature of TAC for different pre-dose values (Bailey, 2001;Adamiec, 2005).…”

Section: Introductionmentioning

confidence: 95%