A new highly sensitive low-Z LiF-based OSL phosphor for radiation dosimetry

作者：Patil R R^*; Gaikwad S U; More Y K; Kulkarni M S; Bhatt B C; Moharil S V

来源：Radiation Protection Dosimetry, 2016, 168(4): 465-470.

DOI：10.1093/rpd/ncv378

A new low-Z lithium fluoride-based optical stimulated luminescent (OSL) phosphor is developed. The phosphor shows good OSL properties, and its sensitivity is comparable with that of the commercial Al2O3:C (Landauer, Inc.) phosphor. For the luminescence averaged over initial 3 s, blue stimulated luminescence (BSL) and green stimulated luminescence (GSL) sensitivities were found to be 0.27 and 4 times, respectively, than that of Al2O3:C (Landauer, Inc.). The BSL decay is fast, and the whole signal decays within 3 s; the GSL decay is relatively slow, and the signal decays in 25 s. The fast decay, good sensitivity, good linearity and its near tissue equivalence (Z(eff) similar to 8.14) will make this phosphor suitable for radiation dosimetry particularly in personnel as well as in medical dosimetry.

• 出版日期2016-3