Nanocrystalline K{sub 2}Ca{sub 2}(SO{sub 4}){sub 3}: Eu for proton beam dosimetry
- Medical Physics Unit, IRCH, AIIMS, New Delhi-110029 (India)
This paper investigates the Thermoluminescent response of nanocrystalline K{sub 2}Ca{sub 2}(SO{sub 4}){sub 3}: Eu, prepared by Co-precipitation technique to 150 MeV proton beam. The particle size was calculated to be 45 nm by the broadening of the XRD peaks using Scherrer's formula. Samples in the form of pellets were irradiated by 150 MeV proton beam with dose range of 0.1 Gy to 325 Gy. Thermoluminescence (TL) glow curves of the irradiated samples were recorded and studied. It has been found that the phosphor shows a characteristic single peak at around 420 K. The TL response is linear in the range upto 200 Gy and then saturates for higher doses. The wider linear TL response of nanocrystalline K{sub 2}Ca{sub 2}(SO{sub 4}){sub 3}: Eu and low fading makes it a superior candidate as a dosimeter to be used for detecting the doses of protons beams for its various applications in the field of space, therapy and research.
- OSTI ID:
- 22004090
- 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
Similar Records
Nanocrystalline Ba{sub 0.97}Ca{sub 0.03}SO{sub 4}:Eu for ion beams dosimetry
Nanoparticles of K{sub 2}Ca{sub 2}(SO{sub 4}){sub 3}:Eu as effective detectors for swift heavy ions
Related Subjects
77 NANOSCIENCE AND NANOTECHNOLOGY
61 RADIATION PROTECTION AND DOSIMETRY
CALCIUM SULFATES
COPRECIPITATION
CRYSTAL DOPING
CRYSTALS
EUROPIUM ADDITIONS
GLOW CURVE
MEV RANGE
NANOSTRUCTURES
PHOSPHORS
PHYSICAL RADIATION EFFECTS
POTASSIUM COMPOUNDS
PROTON BEAMS
PROTON DOSIMETRY
THERMOLUMINESCENCE
THERMOLUMINESCENT DOSIMETRY
X-RAY DIFFRACTION