Teitl: Characteristics of K2Ca2(SO4)3:Eu TLD nanophosphor for its applications in electron and gamma rays dosimetry - data

Dyfyniad
Mandlik NT, Sahare PD, Rondiya SR, et al. (2020). Characteristics of K2Ca2(SO4)3:Eu TLD nanophosphor for its applications in electron and gamma rays dosimetry - data. Cardiff University. http://doi.org/10.17035/d.2020.0114040390


Hawliau Mynediad: Darperir Data dan drwydded Creative Commons Attribution (CC BY 4.0)
Dull Mynediad: I anfon cais i gael y data hwn, ebostiwch opendata@caerdydd.ac.uk

Crewyr y Set Ddata o Brifysgol Caerdydd

Manylion y Set Ddata
Cyhoeddwr: Cardiff University
Dyddiad (y flwyddyn) pryd y daeth y data ar gael i'r cyhoedd: 2020
Dyddiad dechrau creu'r data: 01.01.2020
Dyddiad gorffen creu'r data: 31.07.2020
Fformat y data: .xlsx
Amcangyfrif o gyfanswm maint storio'r set ddata: Llai na 100 megabeit
DOI: 10.17035/d.2020.0114040390

Disgrifiad

In the present report, nanorods (~25 nm × 200 nm) of K2Ca2(SO4)3:Eu phosphor (powder) were synthesized by chemical coprecipitation method followed by annealing at 700 °C. Dimensions of nanorods were confirmed by TEM and XRD. The material (pellets) was irradiated by 60Co gamma-rays for various doses over the range of 0.1 Gy–100 kGy and also by 6 MeV electrons at different fluences varying from 2.5 × 1011 e/cm2 to 5 × 1013 e/cm2 at room temperature. Thermoluminescence (TL) and photoluminescence (PL) of the gamma and electron irradiated phosphors were also studied. TL glow curve apparently exhibited a peak at around 152 °C with a small hump around 258 °C. The exact number of peaks in a glow curve were determined by thermal cleaning method and glow curves were further deconvoluted by CGCD method to determine trapping parameters. PL emission spectrum consisted of a single emission band at 388 nm (Eu2+ emission) on excitation by 320 nm. The intensity of this peak increased with the electron fluence up to 5 × 1012 e/cm2 and decreases thereafter. The TL response is linear in the dose range from 0.1 Gy to 1 kGy of gamma radiation and electron fluence range from 2.5 × 1011 e/cm2 to 2.5 × 1012 e/cm2 . The electronic structures of the pristine and Eu doped K2Ca2(SO4)3 materials were analyzed by means of first-principles density functional theory (DFT) calculations. The dosimetric characteristics suggest that the K2Ca2(SO4)3:Eu nanophosphor can be useful for its application in radiation dosimetry, especially, for measurement of high-doses of gamma and electrons.

The data underpinning the results are available in the .xlsx format (can be viewed either by MS Office or Libre Office) comprising 12 datasheets named after the Figure numbers in the published manuscript in the Journal of Optical Materials. The data comprises of XRD, thermoluminescence (TL) and optically stimulated luminescence (OSL) response data. All data can be plotted using any plotting software, e.g., xmgrace, excel or other plotting software of choice.

Research results based upon these data are published at https://doi.org/10.1016/j.optmat.2020.110272



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