Thermoluminescence and photoluminescence of cerium doped CaSO4 nanosheets, By Mohsen Mehrabi

Research

Title	Thermoluminescence and photoluminescence of cerium doped CaSO4 nanosheets
Type	Article
Keywords	Nanosheets CaSO4:Ce Thermoluminescence High sensitivity
Journal	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
DOI	10.1016/j.nimb.2010.08.014
Researchers	Mostafa Zahedifar (First researcher) , Mohsen Mehrabi (Second researcher)

Abstract

Thermoluminescence (TL) and photoluminescence (PL) characteristics of CaSO4:Ce nanocrystalline prepared by hydrothermal method has been studied. Its TL glow curve contains three overlapping glow peaks at around 490, 505 and 521 K. Emission spectra band at 303 and 324 nm were observed for the orthorhombic phase of nanosheets. TL response of the prepared nanocrystalline to b and c radiation was studied and the sensitivity of the nanosheets was found much more than that of analogous microcrystalline and is around 10 times higher than the well known high sensitive TL dosimeter LiF:Mg, Cu, P (GR-200) hot-pressed chips. TL kinetic parameters of this nanocrystalline are also presented.