LBC
LBC (Lanthanum BromoChloride) LaBr₂.₈₅Cl₀.₁₅:Ce
LBC (Lanthanum BromoChloride) LaBr₂.₈₅Cl₀.₁₅:Ce scintillators have similar properties to the well-known LaBr₃:Ce crystals. Energy resolutions around 3 % FWHM (662 keV) are standard and the material is mechanically a little stronger than LaBr₃. In contrast to background free LaBr₃, LBC crystals suffer from the same La-138 background as LaBr₃
- Material – LBC
- Density (g/cm3) – 4.90
- Emission Maximum (nm) – 380
- Decay time (typical) – 35 ns (primary component)
- Refractive index – 1.90
- Photoelectron yield compared to NaI(Tl) – 140
- Hygroscopic – Yes
Below the typical resolution vs energy is summarized:
| Energy (keV) | Typical Resolution LBC | Typical resolution CeBr3 | Typical resolution NaI(Tl) |
|---|---|---|---|
| 30 (129-I) | 15% | 22% | 16% |
| 59.5 (241-Am) | 10% | 15% | 12% |
| 122 (57-Co) | 6.40% | 10% | 9% |
| 356 (133-Ba) | 4% | 5% | 8% |
| 662 (137-Cs) | 3% | 4% | 7% |
| 1332 (60-Co) | 2.50% | 3% | 5.50% |
Features
Hi-Resolution, mechanically a little stronger than LaBr₃
Uses
High-resolution scintillation spectroscopy, Health Physics, Environmental monitoring
