Scintillation materials and detectors on their base for non-destructive two energy testing

Ryzhikov, V. D.; Grynyov, B.; Opolonin, A.D.; Naydenov, S. V.; Lisetska, O.; Galkin, S. N.; Voronkin, E.

doi:10.1016/j.radmeas.2007.02.025

Cited by 10 publications

(2 citation statements)

References 4 publications

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“…Today the main scintillating materials for medical imaging are 8 Gd 2 O 2 S:Pr,Ce,F [1], (Y,Gd)O 3 :Eu,Pr [2] and CdWO 4 [3,4] for X-ray Computed 9 Tomography (CT) whereas BGO (Bi 4 Ge 3 O 12 ) [5,6], NaI:Tl [7], LYSO 10 ((Lu,Y)SiO 5 :Ce 3+ ) [8,9] and LPS (Lu 2 Si 2 O 7 ) [10,11,12] are often used for Positron 11…”

Section: Introduction 1mentioning

confidence: 99%

Improved scintillation time response in (Lu_0.5Gd_0.5)₂O₃ : Eu³⁺ compared with Lu₂O₃ : Eu³⁺ transparent ceramics

Rétot¹,

Blahuta²,

Bessière³

et al. 2011

J. Phys. D: Appl. Phys.

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The scintillation properties of two sesquioxides ceramics Lu2O3 : Eu3+ and (Lu0.5Gd0.5)2O3 : Eu3+ were studied. Both ceramics present comparable transparency and light yield whereas (Lu0.5Gd0.5)2O3 : Eu3+ showed an order of magnitude reduced afterglow in the 3–300 ms range. A thorough study of the location and behaviour of Eu3+ dopant ions at C2 and S6 sites of Lu2O3 and (Lu0.5Gd0.5)2O3 structures was carried out with low-temperature selective excitation of Eu3+. This revealed that (i) at both C2 and S6 sites, Eu3+ 4f–4f lifetime is shorter in (Lu0.5Gd0.5)2O3 : Eu3+ than in Lu2O3 : Eu3+, (ii) the host matrix (Lu0.5Gd0.5)2O3 as compared with Lu2O3 favours the location of Eu3+ at C2 site. As decay times of Eu3+ in C2 and S6 sites are 1.0 ms and 3.8 ms, respectively, the preferred occupation of C2 in (Lu0.5Gd0.5)2O3 : Eu3+ implies a much shorter decay time for (Lu0.5Gd0.5)2O3 : Eu3+ in the 3–20 ms range. Reduction of afterglow in the 20–300 ms range is illustrated by thermally stimulated luminescence peaks presenting a highly reduced intensity for (Lu0.5Gd0.5)2O3 : Eu3+ compared with Lu2O3 : Eu3+ implying reduced charge trapping defects in (Lu0.5Gd0.5)2O3 : Eu3+ ceramics.

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Section: Introduction 1mentioning

confidence: 99%

Improved scintillation time response in (Lu_0.5Gd_0.5)₂O₃ : Eu³⁺ compared with Lu₂O₃ : Eu³⁺ transparent ceramics

Rétot¹,

Blahuta²,

Bessière³

et al. 2011

J. Phys. D: Appl. Phys.

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“…Scintillating materials for computer tomography (CT) like Gd 2 O 2 S: (Pr, Ce, F), (Y, Gd) O 3 : (Eu, Pr), and CdWO 4 have been successfully utilized for X‐ray imaging application. [ 79,80 ] In the process of X‐ray scanning a patient, there is a need to limit the radiation dose. Hence conversion efficiency of X‐ray induced luminescence is a crucial characteristic while deciding the phosphor for XEL.…”

Section: Gadolinium‐based Oxide Phosphors For X‐ray Excited Luminescence (Xel)mentioning

confidence: 99%

A review: X‐ray excited luminescence of gadolinium based optoelectronic phosphors

Mahakhode¹,

Nande²,

Dhoble

2021

Luminescence

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X‐ray excited fluorescence tomography is an emerging field in the application of bio‐imaging and computer tomography. Some rare‐earth doped inorganic phosphors like gadolinium oxide (Gd2O3), yttrium oxide (Y2O3), zinc tungstate (ZnWO4), cesium fluoride (CsF), barium fluorochloride (BaFCl), lanthanum oxybromide (LaOBr) are shown outstanding applications for X‐ray excited phosphors. Gadolinium (Gd)‐based inorganic phosphors show extraordinary applications in the field of X‐ray chromatography and computer chromatography. In this review article, we discussed the general information about X‐ray excited luminescence (XEL) phosphor. Further, we discussed importance, synthesis, structural and photoluminescence (PL) properties of rare‐earth (Europium (Eu)) doped Gd2O3. To elaborate the scope of the review, we have discussed synthesis, structural and optical properties of lithium (Li) doped Gd2O3:Eu. At the end of the review, synthesis, structural and optical properties of Eu doped lutetium oxide (Lu2O3) have been discussed and the results compared with Eu doped Gd2O3. The comparison provided the understanding of structural and optical peak position of host and the dopant (Eu).

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Research on Improvement of Receiving-Detecting Circuit for Digital Radiographic Systems with Advanced Spatial Resolution

et al. 2011

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Scintillation materials and detectors on their base for non-destructive two energy testing

Cited by 10 publications

References 4 publications

Improved scintillation time response in (Lu_0.5Gd_0.5)₂O₃ : Eu³⁺ compared with Lu₂O₃ : Eu³⁺ transparent ceramics

Improved scintillation time response in (Lu_0.5Gd_0.5)₂O₃ : Eu³⁺ compared with Lu₂O₃ : Eu³⁺ transparent ceramics

A review: X‐ray excited luminescence of gadolinium based optoelectronic phosphors

Research on Improvement of Receiving-Detecting Circuit for Digital Radiographic Systems with Advanced Spatial Resolution

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Scintillation materials and detectors on their base for non-destructive two energy testing

Cited by 10 publications

References 4 publications

Improved scintillation time response in (Lu0.5Gd0.5)2O3 : Eu3+ compared with Lu2O3 : Eu3+ transparent ceramics

Improved scintillation time response in (Lu0.5Gd0.5)2O3 : Eu3+ compared with Lu2O3 : Eu3+ transparent ceramics

A review: X‐ray excited luminescence of gadolinium based optoelectronic phosphors

Research on Improvement of Receiving-Detecting Circuit for Digital Radiographic Systems with Advanced Spatial Resolution

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Product

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Improved scintillation time response in (Lu_0.5Gd_0.5)₂O₃ : Eu³⁺ compared with Lu₂O₃ : Eu³⁺ transparent ceramics

Improved scintillation time response in (Lu_0.5Gd_0.5)₂O₃ : Eu³⁺ compared with Lu₂O₃ : Eu³⁺ transparent ceramics