On the use of natural quartz as transfer dosemeter in retrospective dosimetry

Correcher, V.; Delgado, Antonio

doi:10.1016/s1350-4487(98)00040-7

Cited by 61 publications

(19 citation statements)

References 3 publications

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“…The TL reader is also provided with a 90 Sr/ 90 Y source with a dose rate of 0.021Gy s -1 calibrated against a 137 Cs photon source in a secondary standard laboratory [15]. The sample was carefully powdered with an agate pestle and mortar to avoid triboluminescence [16].…”

Section: Methodsmentioning

confidence: 99%

Thermo- and cathodoluminescence properties of lepidolite

Rodrı́guez-Lazcano

Correcher

García-Guinea

2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Lepidolite, K(Li,Al) 3 (Si,Al) 4 O 10 (F,OH) 2 , and many of the related phyllosilicate mineral of the mica group have been well studied from the chemical and structural point of view; however, to the best of our knowledge, studies on their luminescence properties have been scarcely reported. This work focuses on the thermoluminescence (TL) and cathodoluminescence (CL) response of a natural lepidolite from Portugal previously characterized by means of environmental scanning electron microscope (ESEM) and Xray fluorescence (XRF) and atomic absorption spectroscopy (AAS) techniques. The complexity of the thermoluminescence glow curves of non-irradiated and 1Gy irradiated samples suggests a structure of a continuous trap distribution involving multiorder kinetics. UV-IR CL spectral emission shows seven peaks centered at 330, 397, 441, 489, 563, 700 and 769 nm. Such emission bands could be due to (i) structural defects, i. e.[AlO 4 ] or non-bridging oxygen hole centers, and (ii) the presence of point defects associated with Mn 2+ and Fe 3+ .

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Section: Methodsmentioning

confidence: 99%

Thermo- and cathodoluminescence properties of lepidolite

Rodrı́guez-Lazcano

Correcher

García-Guinea

2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…The emission was observed through a blue filter (a FIB002 of the MellesGriot Company) where the wavelength is peaked at 320-480 nm; FWHM is 80(16) nm and peak transmittance (minimum) is 60 %. The TL reader is also provided with a 90 Sr/ 90 Y source with a dose rate of 0.012 Gy s -1 calibrated against a 137 Cs photon source in a secondary standard laboratory [18]. The sample was carefully powdered with an agate pestle and mortar to avoid triboluminescence [19].…”

Section: Methodsmentioning

confidence: 99%

Effect of the irradiation dose on the luminescence emission of a Mg-rich phyllosilicate

Correcher¹,

Rodrı́guez-Lazcano²,

Gomesdarocha³

et al. 2015

J Radioanal Nucl Chem

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“…This reader is provided with an EMI 9635 QA photo-multiplier and the emission was observed through a blue filter (a FIB002 of the Melles-Griot Company) where the wavelength is peaked at 320-480 nm; FWHM is 80 ± 16 nm and peak transmittance (minimum) is 60%. It is also provided with a 90 Sr/ 90 Y source with a dose rate of 0.020 Gy s −1 calibrated against a 60 Co photon source in a secondary standards laboratory [11]. All the TL measurements were performed using a linear heating rate of 5 • C · s −1 from RT up to 550 • C in a N 2 atmosphere.…”

Section: Methodsmentioning

confidence: 99%

Blue thermoluminescence emission of annealed lithium rich aluminosilicates

et al. 2010

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The blue thermoluminescence (TL) emission of different thermally annealed (i) β-eucryptite (LiAlSiO 4 ), (ii) virgilite-petalite (LiAlSi 5 O 12 ) and (iii) virgilite-petalite-bikitaite (LiAlSi 10 O 22 ) mixed crystals have been studied. The observed changes in the TL glow curves could be linked to simultaneous processes taking place in the lithium aluminosilicate lattice structure (phase transitions, consecutive breaking linking of bonds, alkali self-diffusion, redox reactions, etc). The stability of the TL signal after four months of storage performed at RT under red light, shows big differences between annealed (12 hours at 1200 o C) and non-annealed samples. The fading process in non-annealed samples can be fitted to a first-order decay mathematical expression; however preheated samples could not be reasonably fitted due to the highly dispersion detected. The changes observed in the X-ray diffractograms are in the intensity of the peaks that denote modifications in the degree of crystallinity and, in addition, there are some differences in the appeareance of new peaks that could suppose new phases (e.g. β-spodumene).

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On the use of natural quartz as transfer dosemeter in retrospective dosimetry

Cited by 61 publications

References 3 publications

Thermo- and cathodoluminescence properties of lepidolite

Thermo- and cathodoluminescence properties of lepidolite

Effect of the irradiation dose on the luminescence emission of a Mg-rich phyllosilicate

Blue thermoluminescence emission of annealed lithium rich aluminosilicates

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