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The enhancement on thermoluminescence response of rare earth metal-doped CaSO4/CaF2-based thermoluminescence dosimetry driven by polytetrafluoroethylene decomposition
Nuraeni N.a,b, Iskandar F.a, Waris A.a, Haryanto F.a, Hiswara E.b
a Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Work Safety and Dosimetry Division, National Nuclear Energy Agency (BATAN), Jakarta Selatan, 12440, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018 IOP Publishing Ltd.The effect of polytetrafluoroethylene (PTFE) addition and re-annealing treatment to thermoluminescence dosimeter (TLD) material such as CaSO4:RE (rare earth dysprosium (Dy) or thulium (Tm)) was studied at different re-annealing temperatures. The x-ray diffraction pattern showed that CaF2 phase was observed together with CaSO4:Dy at 500 °C, indicating a formation of CaSO4/CaF2:RE composite due to the reaction between CaSO4 and PTFE. Above 600 °C, the CaF2 phase become stronger than that of CaSO4 phase. The thermoluminescence (TL) peak of the composite was shifting from around 180 °C to around 140 °C as the re-annealing temperature increased from 600 to 800 °C, which correspond to TL characteristic of CaSO4 and CaF2 respectively. However, the maximum TL intensity occurred at re-annealing temperature of 700 °C. The results in this study indicate that the sensitivity of CaSO4/CaF2:RE TL response can be improved by controlling the crystallinity of the material as well as the ratio of CaSO4 and CaF2 in the composite.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Annealing temperatures,Annealing treatments,Polytetrafluoroethylene (PTFE),Rare earth metals,Thermoluminescence dosimeter,Thermoluminescence dosimetry,Thermoluminescence response[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]composite,re-annealing,thermoluminescence,thermoluminescence dosimetry[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/2053-1591/aad9e5[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]