Evolution of TLD-100 glow peaks IV and V at elevated ambient temperatures

Delgado, Antonio; Ros, J M Gomez

doi:10.1088/0022-3727/23/5/016

Cited by 20 publications

(3 citation statements)

References 11 publications

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“…In LiF:Mg,Ti dosimeter, peaks 4 and 5 can be considered the main dosimetric glow-peaks. However, these peaks suffer from strong overlapping which increases the difficulties of the deconvolution process (Delgado and Gomez Ros, 1990). Therefore, it might be more accurate for dosimetric purposes to consider the sum of peaks 4 and 5 that has been shown to remain relatively constant at room temperature (Ben-Shachar and Horowitz, 1992).…”

Section: The Deconvolution Of the Glocanin Glow-curvesmentioning

confidence: 99%

The deconvolution of thermoluminescence glow-curves using general expressions derived from the one trap-one recombination (OTOR) level model

Sadek

Eissa

Basha

et al. 2015

Applied Radiation and Isotopes

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Section: The Deconvolution Of the Glocanin Glow-curvesmentioning

confidence: 99%

The deconvolution of thermoluminescence glow-curves using general expressions derived from the one trap-one recombination (OTOR) level model

Sadek

Eissa

Basha

et al. 2015

Applied Radiation and Isotopes

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“…At higher heating rates, peaks 4 and 5 merge and become increasingly difficult to resolve [I I]. Other authors using a different glow curve analysis routine [28,29] and a rapid heating rate of 600°C min-' have studied the evolution of peaks 4 and 5 at 45 "C and 70 "C and have found growth of peak 5 and decay of peak 4. In these investigations the width of peak 4 was allowed to vary in the deconvolution procedure and it was found that the width of peak 4 became narrower and shifted to higher temperatures as a function of storage time.…”

Section: Long-term Fading Studiesmentioning

confidence: 99%

Study of the long-term stability of peaks 4 and 5 in TLD-100: correlation with isothermal decay measurements at elevated temperatures

Horowitz

Shachar

Yossian

1993

J. Phys. D: Appl. Phys.

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The long-term fading of peak 5 has been studied using four different annealing regimes in order to isolate the behaviour of peak 5 free from interference effects of peaks 2, 3 and 4. Peak 4 grows over the first nine months of storage and only then begins to decay; peak 5, on the other hand, decays rapidly in the first six months and then stabilizes or even begins to grow. Peaks (4+5) together, however, fade monotonically by approximately 8% per annum. Using thermal cleaning procedures to isolate the behaviour of peak 5, the authors have determined that its mean lifetime at 20 degrees C is 5.8+or-1.2 years (1 SD). This mean lifetime is orders of magnitude smaller than predicted by the exponential extrapolation of the mean lifetimes measured at higher temperatures or via peak shape techniques. The discrepancy suggests that the long-term decay of peak 5 is strongly influenced by other forms of decay not associated with charge carrier detrapping. The short-term fading behaviour of peak 5 alone, on the other hand, does appear to be 'well behaved', at a rate of 3.4+or-0.8% (1 SD) per month (for the first month) irrespective of annealing routine, or the presence of peaks 2 and 3. This suggests the possibility of universal short-term fading corrections in environmental and personnel dosimetry if only peak 5 is used in dosimetric measurements.

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“…This phenomena has been theoretically studied by several authors [1][2][3][4][5][6], but no practical expressions have been given up to now.…”

Section: Introductionmentioning

confidence: 99%

Simulation of competing irradiation and fading effects in thermoluminescence dosimetry

Kitis

Furetta

2005

Radiation Effects and Defects in Solids

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The aim of this article is to give some useful expressions for fading correction in practical situations as they can be encountered in radiation protection dosimetry monitoring, i.e. personal, environmental and clinical dosimetry. They are obtained considering the general case in which, for both first and second-order kinetics, during the experimental period of time two effects are in competition between them: one is the trapping rate due to the irradiation, the second is the detrapping rate which takes place at the same time, owing to thermal fading. Various practical situations are taken into consideration.

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Evolution of TLD-100 glow peaks IV and V at elevated ambient temperatures

Cited by 20 publications

References 11 publications

The deconvolution of thermoluminescence glow-curves using general expressions derived from the one trap-one recombination (OTOR) level model

The deconvolution of thermoluminescence glow-curves using general expressions derived from the one trap-one recombination (OTOR) level model

Study of the long-term stability of peaks 4 and 5 in TLD-100: correlation with isothermal decay measurements at elevated temperatures

Simulation of competing irradiation and fading effects in thermoluminescence dosimetry

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