PTFE Additive and Re-annealing Effect on Thermoluminescence Response of CaSO4:Dy Derived from Co-precipitation Method

2nd Materials Research Society of Indonesia Meeting

Nuraeni, Nunung^1,2 ; Septianto, Ricky Dwi^1 ; Iskandar, Ferry^1,3 ; Haryanto, Freddy^1 ; Waris, Abdul^1 ; Hiswara, Eri^2

Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung

40132, Indonesia^1

Work Safety and Dosimetry Division, Centre for Safety Technology and Radiation Metrology, National Nuclear Energy Agency (BATAN), Jl. Lebak Bulus Raya Kav. 49, Jakarta, Selatan

12440, Indonesia^2

Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung, Jl. Ganesha 10, Bandung

40132, Indonesia^3

关键词: Annealing effects;    Annealing treatments;    Coprecipitation method;    Crystal properties;    Fourier transform infrared;    Mass ratio;    Thermoluminescence response;    Thermoluminescent dosimeters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/214/1/012036/pdf
DOI  :  10.1088/1757-899X/214/1/012036

来源: IOP

【 摘 要 】

Effect of re-annealing treatment in thermoluminescence response of thermoluminescent dosimeter (TLD) CaSO4:Dy and CaSO4:Dy with PTFE (Polytetrafluoroethylene) addition was investigated. CaSO4:Dy was prepared by a co-precipitation method. The PTFE was added before re-annealing treatment which the mass ratio of CaSO4:Dy and PTFE was fixed to 2:3. The re-annealing treatments of the samples were done at temperature 700 °C for 1 hr. The obtained samples were characterized using a Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) to observe the molecule bonding in sample and crystal properties, respectively. From the experimental results, it was observed that the thermoluminescence intensity of CaSO4:Dy, CaSO4:Dy re-annealed at 700 °C, and CaSO4:Dy + PTFE re-annealed at 700 °C are 57.03, 75.15, and 1191.11 nC, respectively. The intensity of 700 °C-re-annealed CaSO4:Dy increased significantly after PTFE addition.