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Published on: March 11, 2021
Measurement of gamma-ray dose and neutron activation in BNCT beams using TLD-200
Wen-Chyi Tsai1, Zi-Yi Yang1, Shao-Chun Lee1
1Institute of Nuclear Engineering and Science, National Tsing Hua University, Hsinchu, 30013, Taiwan, ROC.
Abstract:
In this work TLD-200 (CaF2:Dy) chips were used to measure the gamma-ray doses in a PMMA phantom exposed to the BNCT beam at Tsing Hua Open-pool Reactor (THOR). The self-irradiation component induced by the decay of Dy-165 was corrected. The neutron dose contamination was less than 0.3%. The Dy content in the TLD-200 chip was determined by using the modified absolute calibration method of NAA. The self-irradiation TL signal was also applied for the in situ calibration.
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