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Title: Thermoluminescent response of nanocrystalline Ba0.97Ca0.03SO4: Eu for proton beam
Authors: Bahl, Shaila
Lochab, S P
Aleynikov, V E
Molokanov, A G
Rupasov, A A
Pandey, A
Kumar, Pratik
Keywords: Thermoluminescence;XRD;Proton beam;Nanocrystalline
Issue Date: Jul-2010
Publisher: CSIR
Abstract: Nanocrystalline Ba0.97Ca0.03SO4 doped with Eu, was prepared by the chemical co-precipitation method. The formation of the compounds was confirmed by XRD. The particle size was calculated by the broadening of the XRD peaks using Scherrer’s formula. The particle size was found to be around 45 nm. Samples in the form of pellets were irradiated by 150 MeV proton beam. Thermoluminescence (TL) glow curves of the irradiated samples were recorded and studied. It has been found that there is a prominent TL glow peak at 498 K with a small shoulder at around 465 K. The TL response is linear in the range 0.1-150 Gy and then saturates for higher doses. The wider linear TL response of nanocrystalline Ba0.97Ca0.03SO4: Eu and low fading makes it a good candidate as a dosimeter to be used for detecting the doses of protons which are commonly being used in proton therapy for the treatment of cancer.
Page(s): 500-504
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.48(07) [July 2010]

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