Synthesis of CaSO4: Mn nanosheets with high thermoluminescence sensitivity, By Mohsen Mehrabi

Research

Title	Synthesis of CaSO4: Mn nanosheets with high thermoluminescence sensitivity
Type	Article
Keywords	Nanosheets CaSO4:Mn Thermoluminescence High sensitivity
Journal	APPLIED RADIATION AND ISOTOPES
DOI	10.1016/j.apradiso.2011.01.036
Researchers	Mostafa Zahedifar (First researcher) , Mohsen Mehrabi (Second researcher) , Somayeh Harooni (Third researcher)

Abstract

NanosheetCaSO4:Mn havinganaveragethicknessof35nmwassynthesizedbythehydrothermal method anditsthermoluminescence(TL)andphotoluminescence(PL)characteristicswerestudied. Three overlappingTLglowpeakswereidentifiedinthecomplexglowcurveusingthe Tstop technique. Activationenergiesof3.76,2.22and2.47eVandkineticordersof1.01,1.20and1.99werefoundfor three componentglowpeaksat485,504and526K,respectively,usingacomputerizedglowcurve deconvolutionprocedure.Anemissionspectrabandat497nmwasobservedforthesynthesized nanosheet.Thethermoluminescencesensitivityofthepreparednanocrystallitewasfoundtobearound eight timeshigherthanthatofLiF:Mg,Cu,P(GR-200)hot-pressedchips.Dosimetricpropertiesofthis phosphor,includingdoseresponse,fadingandreusability,arealsopresented