LBC (LaBr₂.₈₅Cl₀.₁₅:Ce) Scintillation Detectors for High-Resolution Gamma Spectroscopy
LBC (lanthanum bromochloride doped with cerium) scintillators serve as an alternative to NaI(Tl) and CeBr₃ detectors in applications requiring good energy resolution for gamma-ray measurements. They share many characteristics with LaBr₃ but provide improved mechanical strength.
Key Properties of LBC Scintillation Detectors
- Energy Resolution — Typically 3% FWHM at 662 keV, offering better performance than the ~4% commonly seen with CeBr₃ detectors.
- Mechanical Durability — Stronger than standard LaBr₃, reducing risk of cracking or damage in handling or field use.
- Intrinsic Background — Contains trace La-138 (similar to LaBr₃), producing a low-energy background line around 32 keV; this can be subtracted via background acquisition in most measurement setups.
- Hygroscopic Nature — Requires encapsulation to protect against moisture absorption.
Available Configurations
- Encapsulated crystals with entrance window.
- Crystals integrally coupled to light sensors (PMT or SiPM).
- Complete detector assemblies including light sensor and front-end electronics (preamplifier, shaping, etc.).
Crystal sizes range from small pixels suitable for arrays to larger volumes up to 102 mm × 127 mm, supporting single-detector or multi-detector systems.
These high-resolution gamma scintillation detectors are applied in:
- Nuclear safeguards and non-proliferation inspections
- Environmental radioactivity monitoring
- Homeland security and nuclide identification
- Waste characterization and decommissioning
- Gamma spectroscopy research requiring clear peak separation
For specifications on energy resolution, crystal dimensions, background subtraction methods, or to discuss LBC detector configurations for your gamma spectroscopy application, contact us or complete our brief detector survey form. We can help select the appropriate setup based on your energy range and environmental needs.
Density
4.90 g/cc
Maximum Emission
380 nm
Decay Time (Typical)
35 ns (primary component)
Refractive Index
1.90
Photoelectron Yield
140
Hygroscopic
Yes
Typical LBC Energy Spectrum for Cs-137
Typical LBC Energy Spectrum for Co-57
Typical Energy Resolution vs. CeBr3 and NaI(Tl)
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)
6.4%
10%
9%
356 (133-Ba)
4%
5%
8%
662 (137-Cs)
3%
4%
7%
1332 (60-Co)
2.5%
3%
5.5%
Free Online Training Module – An Introduction to Scintillation Crystals and Detectors
Vist our Training page to access the module or for more information
Press Room – Scintillation Detectors: Attenuation Length Of Optical Emission
Press Room – Custom-Built Scintillation Detectors For Every Application
Press Room – Scintillator | What Are Scintillator Materials?
Press Room – From Crystal Growth To Assembly: The Manufacturing Process Of Custom Nal Scintillation Crystals
LBC Datasheet
Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our downloads page.
Playlist
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