Pure LiF nanophosphors for high exposures of gamma-rays
Creators
- 1. Centre of Material Science and Engineering, National Institute of Technology, Hamirpur (India)
- 2. Inter-University Accelerator Centre, Aruna Asif Ali Marg, New Delhi (India)
- 3. Beant College of Engineering and Technology, Gurdaspur (India)
- 4. Department of Physics, Government College, Hamirpur (India)
Description
Nanocrystalline lithium fluoride (LiF) phosphors have been prepared by the chemical co-precipitation method at different pH values (7.0, 8.0, 9.0 and 10.00). The formation of nanocrystalline structure has been confirmed by X-ray diffraction and transmission electron microscope. Thermoluminescence (TL) properties of LiF phosphors irradiated with gamma rays at different doses of 10 Gy - 70 kGy have been further studied. The analysis of TL glow curve revealed the existence of three well resolved glow peaks, first low temperature peak at around 82 deg. C, second at 125 deg. C and third one at higher temperature around 303 deg. C. The LiF nano-crystallites synthesized at 8.00 pH with maximum TL sensitivity at studied gamma doses ranging from threshold to high exposures are potential candidate for dosimetry applications.
Additional details
Identifiers
- DOI
- 10.1063/1.4710003;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 1447
- Journal Issue
- 1
- Journal Page Range
- p. 309-310
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 56. DAE solid state physics symposium 2011
- Dates
- 19-23 Dec 2011
- Place
- Kattankulathur, Tamilnadu (India)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43094194
- Subject category
- S36: MATERIALS SCIENCE; S77: NANOSCIENCE AND NANOTECHNOLOGY; S61: RADIATION PROTECTION AND DOSIMETRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COPRECIPITATION; CRYSTALS; GAMMA RADIATION; GLOW CURVE; IRRADIATION; LITHIUM FLUORIDES; NANOSTRUCTURES; PH VALUE; PHOSPHORS; PHYSICAL RADIATION EFFECTS; SENSITIVITY; THERMOLUMINESCENCE; THERMOLUMINESCENT DOSIMETRY; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALI METAL COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; DOSIMETRY; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; EMISSION; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IONIZING RADIATIONS; LITHIUM COMPOUNDS; LITHIUM HALIDES; LUMINESCENCE; MICROSCOPY; PHOTON EMISSION; PRECIPITATION; RADIATION EFFECTS; RADIATIONS; SCATTERING; SEPARATION PROCESSES
Optional Information
- Notes
- (c) 2012 American Institute of Physics