β-Irradiated thermoluminescence response of nanocrystalline YAGG:Pr3+ for radiation dosimetry

Prakhar Sengar; H. A. Borbón-Nuñez; Ch J. Salas-Juárez; E. M. Aguilar; C. Cruz-Vázquez; R. Bernal; G. A. Hirata

doi:10.1016/j.materresbull.2017.03.001

β-Irradiated thermoluminescence response of nanocrystalline YAGG:Pr³⁺ for radiation dosimetry

Prakhar Sengar^*, H. A. Borbón-Nuñez, Ch J. Salas-Juárez, E. M. Aguilar, C. Cruz-Vázquez, R. Bernal, G. A. Hirata

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Garnet type Y_2.99Al_5−xGa_xO₁₂:0.01Pr³⁺ (YAGG:Pr³⁺) nanocrystals with varying Ga concentration (x = 0, 1, 2.5, 4) were synthesized by combustion synthesis. X-ray diffraction revealed highly crystalline structure with an increase in the lattice parameter and distortion of the cubic crystal upon Ga incorporation. XPS results demonstrated the presence of desired compositional elements and the substitution of Ga at the Al site. Thermoluminescence glow curves exhibit complex shapes comprising of four main peaks with a shift in the peak maxima and decreasing sensitivity from x = 0–4. Ga incorporation altered the distribution of trap levels enhancing the dose-response behavior of the samples. The reproducibility studies displayed that the nanophosphors are reusable with minimal changes in the TL output. The results indicate the potential of YAGG:Pr³⁺ for dosimetry applications.

Original language	English
Pages (from-to)	195-204
Number of pages	10
Journal	Materials Research Bulletin
Volume	90
DOIs	https://doi.org/10.1016/j.materresbull.2017.03.001
State	Published - 1 Jun 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

A. Nanostructure
B. Luminescence
D. Crystal structure
D. Phosphors

Access to Document

10.1016/j.materresbull.2017.03.001

Cite this

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title = "β-Irradiated thermoluminescence response of nanocrystalline YAGG:Pr3+ for radiation dosimetry",

abstract = "Garnet type Y2.99Al5−xGaxO12:0.01Pr3+ (YAGG:Pr3+) nanocrystals with varying Ga concentration (x = 0, 1, 2.5, 4) were synthesized by combustion synthesis. X-ray diffraction revealed highly crystalline structure with an increase in the lattice parameter and distortion of the cubic crystal upon Ga incorporation. XPS results demonstrated the presence of desired compositional elements and the substitution of Ga at the Al site. Thermoluminescence glow curves exhibit complex shapes comprising of four main peaks with a shift in the peak maxima and decreasing sensitivity from x = 0–4. Ga incorporation altered the distribution of trap levels enhancing the dose-response behavior of the samples. The reproducibility studies displayed that the nanophosphors are reusable with minimal changes in the TL output. The results indicate the potential of YAGG:Pr3+ for dosimetry applications.",

keywords = "A. Nanostructure, B. Luminescence, D. Crystal structure, D. Phosphors",

author = "Prakhar Sengar and Borb{\'o}n-Nu{\~n}ez, {H. A.} and Salas-Ju{\'a}rez, {Ch J.} and Aguilar, {E. M.} and C. Cruz-V{\'a}zquez and R. Bernal and Hirata, {G. A.}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

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doi = "10.1016/j.materresbull.2017.03.001",

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T1 - β-Irradiated thermoluminescence response of nanocrystalline YAGG:Pr3+ for radiation dosimetry

AU - Sengar, Prakhar

AU - Borbón-Nuñez, H. A.

AU - Salas-Juárez, Ch J.

AU - Aguilar, E. M.

AU - Cruz-Vázquez, C.

AU - Bernal, R.

AU - Hirata, G. A.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Garnet type Y2.99Al5−xGaxO12:0.01Pr3+ (YAGG:Pr3+) nanocrystals with varying Ga concentration (x = 0, 1, 2.5, 4) were synthesized by combustion synthesis. X-ray diffraction revealed highly crystalline structure with an increase in the lattice parameter and distortion of the cubic crystal upon Ga incorporation. XPS results demonstrated the presence of desired compositional elements and the substitution of Ga at the Al site. Thermoluminescence glow curves exhibit complex shapes comprising of four main peaks with a shift in the peak maxima and decreasing sensitivity from x = 0–4. Ga incorporation altered the distribution of trap levels enhancing the dose-response behavior of the samples. The reproducibility studies displayed that the nanophosphors are reusable with minimal changes in the TL output. The results indicate the potential of YAGG:Pr3+ for dosimetry applications.

AB - Garnet type Y2.99Al5−xGaxO12:0.01Pr3+ (YAGG:Pr3+) nanocrystals with varying Ga concentration (x = 0, 1, 2.5, 4) were synthesized by combustion synthesis. X-ray diffraction revealed highly crystalline structure with an increase in the lattice parameter and distortion of the cubic crystal upon Ga incorporation. XPS results demonstrated the presence of desired compositional elements and the substitution of Ga at the Al site. Thermoluminescence glow curves exhibit complex shapes comprising of four main peaks with a shift in the peak maxima and decreasing sensitivity from x = 0–4. Ga incorporation altered the distribution of trap levels enhancing the dose-response behavior of the samples. The reproducibility studies displayed that the nanophosphors are reusable with minimal changes in the TL output. The results indicate the potential of YAGG:Pr3+ for dosimetry applications.

KW - A. Nanostructure

KW - B. Luminescence

KW - D. Crystal structure

KW - D. Phosphors

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VL - 90

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EP - 204

JO - Materials Research Bulletin

JF - Materials Research Bulletin

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