• High light output, and fast decay time output pulse.
• Better energy resolution and stability than NaI(Tl).
• Higher maximum throughput at high input count rates.

Lanthanum Bromide, or LaBr3(Ce), is one of the new generation of inorganic scintillation gamma-ray detectors. LaBr detectors exhibit improved resolution and faster light decay time.

When used with the latest ORTEC digital electronics, these detectors provide improved resolution, pulse shape, and temperature stability compared to NaI(Tl) types.

Improved Resolution and Efficiency
As shown in Figure 1, LaBr provides better resolution performance over NaI(Tl) systems by approximately a factor of 2. Note that neither the NaI(Tl) detectors nor the lanthanum bromide detectors can approach the resolution of a HPGe detector. The efficiency for LaBr is about 1.3 times that of NaI(Tl) for the same volume and the decay time constant is slightly more than 10% of the NaI detector decay time (see Table 1). On the basis of photoelectron yield, LaBr has higher efficiency and temperature stability than NaI(Tl).

High Count Rate Compatibility
Lanthanum bromide detectors can operate over wide dynamic ranges of count rate with little variation in energy resolution.