Natural Thermoluminescence of Soils, Minerals, and Certain Rocks

Nishita, H.; Hamilton, M.; Haug, Ruth

doi:10.1097/00010694-197404000-00006

Cited by 20 publications

(5 citation statements)

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“…Kasuya et al [28] studied the annealing effects on the TL sensitivity of lepidolite mica. The natural as well as beta, gamma and electron beam induced TL characteristics of different types of synthetic and natural mica from different origins have been extensively studied by many other researchers [3,[29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Pre-gamma dose thermoluminescence characteristics of muscovite mica

Kaur

Singh

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Introductionmentioning

confidence: 99%

Pre-gamma dose thermoluminescence characteristics of muscovite mica

Kaur

Singh

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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“…Impurity concentrations in materials (such as natural salt) vary by region, as does the TL response. [19,20] Similar materials excavated in different regions may not have the same TL response. As a result, region-based TL studies of natural materials are essential.…”

Section: Introductionmentioning

confidence: 99%

Dosimetric properties of thermoluminescent NaCl pellets from Khewra Salt Mines, Pakistan

et al. 2022

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Thermoluminescence (TL) and extended dosimetric characteristics of naturally occurring sodium chloride (NaCl) salt were studied. Pellets were prepared from mined crystalline salt obtained from Khewra Salt Mines, Pakistan and irradiated from 1 mGy to 10,000 mGy using cobalt-60 gamma source. The TL response showed two dominant peaks around 125 C and 230 C, respectively, at low doses, with an additional peak in between at doses beyond 300 mGy. A linear and supra-linear TL response was observed between 1 mGy-100 mGy and 100 mGy-10 Gy dose ranges, respectively.During the first 24 h post-irradiation, the TL intensity dropped by 20%. A maximum angular dependence of up to 50% was observed between 0 to 360 . For photon

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“…McDougall classified both muscovite and biotite as a weakly thermoluminescent or non-thermoluminescent mineral [12]. However, the luminescence properties of these minerals have been studied by a few researchers [11,[13][14][15][16][17][18][19][20][21][22][23]. Nishita et al [13] investigated natural TL in muscovite and found a very weak peak at about 220 °C (493 K) and a slightly stronger one at 350 °C (623 K).…”

Section: Introductionmentioning

confidence: 99%

“…However, the luminescence properties of these minerals have been studied by a few researchers [11,[13][14][15][16][17][18][19][20][21][22][23]. Nishita et al [13] investigated natural TL in muscovite and found a very weak peak at about 220 °C (493 K) and a slightly stronger one at 350 °C (623 K). Kristianpoller et al [15] studied natural and beta-induced TL of muscovite, and two main glow peaks were observed at about 150 (423 K) and 260 °C (533 K) in the blue region.…”

Section: Introductionmentioning

confidence: 99%

Dosimetric characteristics of muscovite mineral studied under different annealing conditions

Kalita

Wary

2015

Phys. Scr.

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The annealing effect on the thermoluminescence (TL) characteristics of x-ray irradiated muscovite mineral relevant to dosimetry has been studied. For un-annealed and 473 K annealed samples an isolated TL peak has been observed at around 347 K; however, annealing at 573, 673 and 773 K two composite peaks have been recorded at around 347 and 408 K. Kinetic analysis reveals that there is a trap level at a depth of 0.71 eV, and due to annealing at 573 K (or above), a new trap level generates at 1.23 eV. The dosimetric characteristics, such as dose response, fading and reproducibility, have been studied in detail for all types of samples. The highest linear dose response has been observed from 10 to 2000 mGy in the 773 K annealed sample. Due to generation of the deep trap level, fading is found to reduce significantly just after annealing above 573 K. Reproducibility analysis shows that after 10 cycles of reuse the coefficient of variations in the results for 60, 180 and 1000 mGy dose irradiated 773 K annealed samples are found to be 1.78%, 1.37% and 1.58%, respectively. These analyses demand that after proper annealing muscovite shows important dosimetric features that are essentially required for a thermoluminescence dosimeter (TLD).

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Natural Thermoluminescence of Soils, Minerals, and Certain Rocks

Cited by 20 publications

References 1 publication

Pre-gamma dose thermoluminescence characteristics of muscovite mica

Pre-gamma dose thermoluminescence characteristics of muscovite mica

Dosimetric properties of thermoluminescent NaCl pellets from Khewra Salt Mines, Pakistan

Dosimetric characteristics of muscovite mineral studied under different annealing conditions

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