10％ Ce3+-doped lanthanum chloride (LaCl3:Ce) crystals with low-radioactive background have been prepared using raw materials with low content of U-series isotopes. The radioactive background was estimated to be about 0.713 counts·s–1·cm–3 resulted from the natural U-series radioactive isotopes in the prepared LaCl3:Ce crystal. The energy resolution (FWHM) of the LaCl3:Ce crystal was 3.3％ for 662 keVγ-rays. Moreover, the peak-to-valley ratio, relative light output and peak count rate of the LaCl3:Ce crystal were approximately 2.61 times, 87.88％ and 1.96 times of that of NaI:Tl crystal with the same size of ?25 mm× 50 mm, respectively. The effects of crystal size on the scintillation properties of the prepared LaCl3:Ce crystal were discussed.

Cs2 LiYCl6:Ce(CLYC)晶体是一种具有n/γ双探测能力的新型闪烁晶体.采用坩埚垂直下降法生长出富6 Li的CLYC晶体毛坯,经加工、封装得到?50 mm×50 mm的CLYC闪烁晶体封装件,其对137 Cs 662 keVγ射线的能量分辨率为4.22％;测量252Cf中子源的脉冲波形甄别(PSD)品质因子(FOM)为3.45.凭借其优异的性能,CLYC闪烁晶体有望在中子探测领域替代3 He正比计数管,并可作为n/γ双探测的优选材料,应用于中子辐射探测器、放射性同位素识别仪、个人辐射剂量仪,以及其他中子、伽马射线的探测.