Thermal quenching of thermoluminescence in quartz samples of various origin

Subedi, Bhagawan; Oniya, Ebenezer O.; Polymeris, George S.; Afouxenidis, Dimitrios; Tsirliganis, Nestor C.; Kitis, G.

doi:10.1016/j.nimb.2011.01.011

Cited by 41 publications

(13 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was important to identify the effect of thermal quenching on the observations since different heating rates are known to instigate varied levels of thermal quenching (Subedi et al, 2011). By considering curve S n0 in Fig.…”

Section: Discussionmentioning

confidence: 99%

Contributions of pre-exposure dose and thermal activation in pre-dose sensitizations of unfired and annealed quartz

Oniya

Polymeris

Jibiri

et al. 2015

Radiation Physics and Chemistry

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Contributions of pre-exposure dose and thermal activation in pre-dose sensitizations of unfired and annealed quartz

Oniya

Polymeris

Jibiri

et al. 2015

Radiation Physics and Chemistry

View full text Add to dashboard Cite

“…7). However, W values calculated in this manner (W = 0.20 -0.33 eV; Subedi et al (2011). In addition to calculating the trap parameters for each of the five tested samples individually, the parameters were also calculated by fitting all the data combined and sample-…”

Section: Tt-osl Trap Parametersmentioning

confidence: 99%

“…This same fitting procedure was also used for only the subset of samples (Data 1) with L n /T n values below the estimated maximum limit of reliability for the natural dose response curve (2200 Gy) and the results are shown on figure 8 as 'Fit to Data 1'. The signal lifetime at 10 °C calculated using the E and s values for the combined data and the thermal quenching value (W) of Subedi et al (2011;0.65 ± 0.03 eV), as discussed in section 6, was used to define a similar function that is plotted on figure 8 as 'Lifetime at 10 °C' (τ = 180 ka, Table 1c). Lifetime estimates obtained by fitting equation 2 to the data are 203 ± 5 ka for all the samples and 175 ± 5 ka for the subset of samples with L n /T n values less than 2200 Gy.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Natural and laboratory TT-OSL dose response curves: Testing the lifetime of the TT-OSL signal in nature

Chapot

Roberts

Duller

et al. 2016

Radiation Measurements

View full text Add to dashboard Cite

This study compares natural and laboratory generated thermally transferred optically stimulated luminescence (TT-OSL) dose response curves (DRCs) for fine-grain quartz extracts from the Luochuan loess section in central China. Both DRCs saturate at high doses relative to the quartz OSL signal; the natural TT-OSL DRC saturates at about 2200 Gy and laboratory DRCs saturate at about 2700 Gy. However, the natural and laboratory TT-OSL DRCs deviate from one another at circa 150 Gy resulting in TT-OSL equivalent dose underestimation relative to palaeodoses expected from dose rates and independent age control. The lifetime of the TT-OSL signal at 10 °C, calculated from values of trap parameters E and s, is compared against the value for lifetime of the TT-OSL signal in nature at average burial temperature as determined from the age underestimation caused by deviation of the natural and laboratory generated DRCs. These two independent assessments of TT-OSL signal lifetime at Luochuan give similar values, suggesting that laboratory measurements of thermal stability reflect natural burial lifetimes and can potentially be used to correct TT-OSL ages for the difference between natural and laboratory dose response curves.

show abstract

“…Additional glow peaks are also available in the literature for different quartz samples as well as different detection optics, such as at 250-270°C as well as the one at 350-375°C (Wintle, 1997;Thomsen, 2004). Recently, Subedi et al (2011) presented the major TL peaks on various quartz types after deconvolution. A summary of all the TL peaks reported in the literature is tabulated by Preusser et al (2009).…”

Section: Introductionmentioning

confidence: 99%

Behavior of various Nigerian quartz samples to repeated irradiation and heating

Oniya¹,

Polymeris

Tsirliganis

et al. 2012

Geochronometria

View full text Add to dashboard Cite

Abstract:In the present work the sensitization of the entire glow-curve is studied in 6 different quartz samples of Nigerian origin. The investigation was applied to the un-fired "as is" samples as well as to samples fired at 900°C for 1 hour following cooling to room temperature. The results showed that in the case of "as is" glow-curve is sensitized as a whole. There is an abrupt transition from the "natural" sensitivity without any previous heating and the artificial sensitivity induced after the first heating. The sensitization is growing up strongly to the 10 th heating but to a lower rate. The sensitization factor of the TL glow-peak at "110°C" was found to be linearly correlated to the higher temperature TL peaks. In the case of annealed samples there is an initial increase between the sensitivity immediately after the end of annealing and after the first heating. As the number of heating is increased up to the 10 th heating the sensitization is stabilized at a constant value. The results are discussed in the framework of existing models and implications of the sensitization effect in various applications, while some explanations are attempted.

show abstract

Thermal quenching of thermoluminescence in quartz samples of various origin

Cited by 41 publications

References 51 publications

Contributions of pre-exposure dose and thermal activation in pre-dose sensitizations of unfired and annealed quartz

Contributions of pre-exposure dose and thermal activation in pre-dose sensitizations of unfired and annealed quartz

Natural and laboratory TT-OSL dose response curves: Testing the lifetime of the TT-OSL signal in nature

Behavior of various Nigerian quartz samples to repeated irradiation and heating

Contact Info

Product

Resources

About