TY - JOUR
AU - Choe, H. S.
AB - LiF-based thermoluminescence (TL) materials have been widely used for radiation dosimetry due to their attractive features. LiF:Mg,Cu,P is one of the most sensitive tissue-equivalent TL materials, ∼40 times more sensitive than LiF:Mg,Ti (TLD-100), but it has two main drawbacks: a thermal loss of the TL sensitivity when annealed at temperatures >240°C, and a relatively high-residual signal. Recently, LiF:Mg,Cu,Na,Si TL material was developed to overcome these drawbacks at the Korea Atomic Energy Research Institute, but it provided only marginal improvements in reducing the residual signal. The newly developed LiF:Mg,Cu,Si TL material has a significantly lower residual signal and a better stability to thermal treatments. In this article, the preparation method and some dosimetric properties (sensitivity and residual signal) of the new LiF:Mg,Cu,Si TL material are presented. At the end of the preparation procedures, a dual-step annealing method is introduced and this has proved as a very efficient method to reduce the high-temperature peak and is the cause of residual signal. Therefore, the high-temperature peak in the glow curve was significantly reduced. The sensitivity is ∼20 times higher than that of TLD-100 and the residual signal was estimated to be ∼0.04%.
TI - Development of LiF:Mg,Cu,Si TL material (new KLT-300) with a low-residual signal and high-thermal stability
JF - Radiation Protection Dosimetry
DO - 10.1093/rpd/ncl122
DA - 2007-07-12
UR - https://www.deepdyve.com/lp/oxford-university-press/development-of-lif-mg-cu-si-tl-material-new-klt-300-with-a-low-pdtsjA2S7D
SP - 229
EP - 232
VL - 125
IS - 1-4
DP - DeepDyve
ER -