Optically stimulated luminescence and thermoluminescence of terbium-activated silicates and aluminates

Mittani, Juan Carlos Ramírez; Prokić, M.; Yukihara, E.G.

doi:10.1016/j.radmeas.2007.10.004

Cited by 71 publications

(39 citation statements)

References 6 publications

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“…As expected the RL signal has the sharp characteristic lines of the rare earth dopant (terbium) and this is consistent with similar processes observed in other radiation induced phenomena in this compound. 6,10,19 The low heating rate glow peaks are summarized in Table I which shows that they appear at the same temperatures, independent of wavelength.…”

Section: 18mentioning

confidence: 97%

“…Several investigations have already been carried out on phosphor: i.e., optical and thermal effects on the TL response, 5,6 sensitization, and photo-transfer 7 and some phenomenological parameters such as activation energy (E), frequency factor (s), and kinetic order. 8 An even more interesting bonus for dosimetry with Mg 2 SiO 4 :Tb is that it has the highest known intrinsic TL sensitivity to UV radiation (wavelength 253.7 nm).…”

Section: Introductionmentioning

confidence: 99%

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Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate

et al. 2015

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Thermoluminescence (TL) and radioluminescence (RL) are reported over the temperature range 25-673 K from MgSiO 4 :Tb and MgSiO 4 :Eu. The dominant signals arise from the transitions within the Rare Earth (RE) dopants, with limited intensity from intrinsic or host defect sites. The Tb and Eu ions distort the lattice and alter the stability of the TL sites and the peak TL temperature scales with the Tb and Eu ion size. The larger Eu ions stabilize the trapped charges more than for the Tb, and so the Eu TL peak temperatures are ;20% higher. There are further size effects linked to the TL driven by the volume of the upper state orbitals of the rare earth transitions. For Eu the temperatures of the TL peaks are wavelength dependent since higher excited states couple to distant traps via more extensive orbits. The same pattern of peak temperature data is encoded in RL during heating. The data imply that there are sites in which the rare earth and charge stabilizing defects are closely associated within the host lattice, and the stability of the entire complex is linked to the lattice distortions from inclusions of impurities.

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Section: 18mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate

et al. 2015

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“…Microparticles with diameters on the order of 10-20 jlm were prepared (Mittani, 2008) Microheaters are used because they are able to rapidly and repeatedly bring the microparticles from room temperature to over 500 ac and back with time constants on the order of tens of milliseconds-32 ms in our current devices, as measured by bolometric methods (Kruse, 1962) -as well as provide a standard linear TL ramp. They are composed of a 200 nm thick etch-released, corner-supported platform of LPCVD silicon nitride topped with a 160 nm Ti/Pt serpentine resistor.…”

Section: Microparticles and Microheatersmentioning

confidence: 99%

Thermal History Using Microparticle Trap Luminescence

Talghader¹

2012

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“…Tb 3 + -based materials are widely used in the phosphors technology [13] and find also applications as scintillators [20] and in dosimetry [21]. The visible luminescence spectrum of Tb:BNN, measured upon excitation at 370 nm, is shown in Fig.…”

Section: Tb:bnnmentioning

confidence: 99%

Luminescence properties of Ba2NaNb5O15 crystals activated with Sm3+, Eu3+, Tb3+ or Dy3+ ions

Cavalli

Belletti

Mahiou

et al. 2010

Journal of Luminescence

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Optically stimulated luminescence and thermoluminescence of terbium-activated silicates and aluminates

Cited by 71 publications

References 6 publications

Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate

Ion size effects on thermoluminescence of terbium and europium doped magnesium orthosilicate

Thermal History Using Microparticle Trap Luminescence

Luminescence properties of Ba2NaNb5O15 crystals activated with Sm3+, Eu3+, Tb3+ or Dy3+ ions

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