Thermoluminescence characteristics of LiF: Cu nanocrystalline phosphor

Journal Article · Mon May 23 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947763· OSTI ID:22606340

Seth, Pooja; Aggarwal, Shruti ^[1]

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1. University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, New Delhi (India)

Copper (Cu) activated LiF phosphor in nanocrystalline form has been prepared by the chemical co-precipitation method for radiation dosimetry application. The formation of nanocrystalline structure has been confirmed by X-ray diffraction and Scanning electron microscopy. Cubical shaped nanostructure with average particle size of 33nm has been formed. The sample was prepared at different concentration of Cu from 0.01mol% to 3 mol%. TL properties were investigated by studying the glow curve after irradiating the phosphor to gamma ray Co{sup 60} source with dose of 15 Gy. It has been found that nanocrystalline LiF: Cu show simple glow curve structure with a single glow peak at 404 K where as commercially available phosphors exhibits multi peak complex glow curve structure. The effect of different normality on the TL properties of phosphor has been studied. Maximum TL intensity for LiF: Cu (0.1mol %) phosphor is observed at the normality of 0.5N and annealing temperature of 200°C. The phosphor showed good linearity up to 10 KGy.

• OSTI ID: 22606340
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1731; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNEALING
COBALT 60
CONCENTRATION RATIO
COPPER
COPRECIPITATION
CRYSTALS
DOSIMETRY
GAMMA DETECTION
GAMMA RADIATION
GAMMA SOURCES
LITHIUM FLUORIDES
NANOSTRUCTURES
PHOSPHORS
SCANNING ELECTRON MICROSCOPY
THERMOLUMINESCENCE
X-RAY DIFFRACTION