محسن محرابی

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