Thermoluminescence of Eu activated LiF nanophosphors

Journal Article · Tue Jun 05 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4710042· OSTI ID:22004093

Kumar, Satinder; Sharma, A K; Lochab, S P; Kumar, Ravi ^[1]

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1. Department of Physics, Government College, Hamirpur (India)

Nanocrystalline lithium fluoride (LiF) phosphors prepared by the chemical co-precipitation method at 8.00 pH value have been activated with Eu (0.01, 0.03, 0.07 and 0.1%nt;) as single dopants. The formation of nanocrystalline structure has been confirmed by X-ray diffraction. Thermolumniscence (TL) properties of LiF: Eu nano-phosphors irradiated with gamma rays at different doses of 100 Gy - 10 kGy have been further studied. There is only one main glow peak at around 122 deg. C; which shifts to higher temperature with an increase in doping concentration at all studied irradiation doses. However, the glow peak shifts to lower temperature with an increase in irradiation dose from 100 Gy to 10 kGy. The LiF nano-crystallites synthesized at 8.00 pH and activated with 0.03%nt; Eu are found to have maximum TL sensitivity at studied gamma doses.

• OSTI ID: 22004093
• Journal Information: AIP Conference Proceedings, Vol. 1447, Issue 1; Conference: 56. DAE solid state physics symposium 2011, Kattankulathur, Tamilnadu (India), 19-23 Dec 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
61 RADIATION PROTECTION AND DOSIMETRY
77 NANOSCIENCE AND NANOTECHNOLOGY
CONCENTRATION RATIO
COPRECIPITATION
CRYSTALS
DOPED MATERIALS
EUROPIUM ADDITIONS
GAMMA RADIATION
GLOW CURVE
LITHIUM FLUORIDES
NANOSTRUCTURES
PH VALUE
PHOSPHORS
PHYSICAL RADIATION EFFECTS
RADIATION DOSES
SENSITIVITY
THERMOLUMINESCENCE
THERMOLUMINESCENT DOSIMETRY
X-RAY DIFFRACTION