Bridgman growth of LaBr3:Ce and LaCl3:Ce crystals for high-resolution gamma-ray spectrometers

Elpasolite scintillators.

“…For a comparison purpose, the insert in Figure 31 shows the non-proportionality of other common scintillators. Results indicate that the non-proportionality of Cs 2 LiLaBr 6 is better than the stateof-the-art LaBr 3 :Ce 3+ and LaCl 3 :Ce 3+ crystals, which showed 4% and 7% non-proportionality, respectively, in a similar range [96] [97]. Additional measurements for the non-proportionality and decay time for Cs 2 NaGdBr 6 :Ce 3+ are given in Figure 32.…”

Dehydration and oxidation in the preparation of Ce-doped LaCl3 scintillation crystals

“…Five endothermal peaks, 105 • C, 165 • C, 191 • C, 222 • C and 850.7 • C, can be observed in the DTA curve. The endothermal peak at 850.7 • C is corresponding to the melting point of LaCl 3 crystal, even though it is lower than that reported by Higgins et al [4]. The other four endothermal peaks from 100 • C to 300 • C are corresponding to the mass loss effects, 4.65%, 13.17%, 10.4% and 5.8% in the TG curve.…”

The Detection and Measurement of Ionizing Radiation

“…Thallium-doped sodium iodide, NaI(Tl), has long been the standard by which all inorganic scintillators are measured due to its exceptional light yield or how many scintillation photons are emitted per unit of energy deposited. However, recent research into new materials such as the lanthanum halides (LaBr 3 and LaCl 3 , for example) [11][12][13][14] and elpasolite scintillators (most notably Cs 2 LiYCl 6 , Cs 2 LiLaCl 6 , and Cs 2 LiLaBr 6 , called CLYC, CLLC, and CLLB, respectively) [15][16][17] has resulted in a significant improvement in the energy resolutions attributed to scintillators. When deciding between scintillators, it is important to consider what type of radiation is to be detected.…”