LaBr3Ce Scintillation Probe

LaBr3Ce Scintillation Probe


The scintillation probe of LaBR series are made up of LaBr3:Ce Scintillators , fast-response photomultiplier, voltage division circuit, fast-response charge sensitive preamplifier and the metal case. Because the optimal design of direct coupling, the probe has many advantages like the high energy resolution, good energy linear and the fast response. It widely used in nuclear detection technology.

Product Description;

Type LaBR-A, Double-Signal LaBr3:Ce Scintillation Probe                              
LaBR-A is one of the LaBr3:Ce scintillation probe which is special designed for energy with time-of-flight mass spectrometer. LaBR-A could provide not only  the fast time signal, but also theγ photon energy signal. The probe is the best choice in energy and time measurement with best energy resolution and short decay time. The probe can be also used as the γ-spectrometer probe and γ-time measuring probe.   
                                                                                
Type LaBR-B, Portable γ-spectrometer LaBr3:Ce Scintillation Probe 
LaBR-B is one of the LaBr3:Ce scintillation probe which is special designed for portable γ-spectrometer. LaBr3:Ce, photomultiplier tube and pre amplifier integrated packed so the structure is compact. The probe is the first choice of the high precision portable γ-spectrometer  
                                                                             
Type LaBR-C, General type (economical) LaBr3:Ce Scintillation Probe                 
LaBR-C is one of the general type Labr3:Ce scintillation probe. During the design process, we considered the NaI scintillation probe user’s interest and we realize the probe technology upgrading with the minimum cost. When the user add the LaBR-C probe to the spectrometer, it will be a new one and  the performance improve greatly. The NaI probe can be used as a spare part.                                      
                                                                            
Type LaBR-D, Radioactive logging (high temperature)LaBr3:Ce Scintillation Probe 
LaBR-D is one of the LaBr3:Ce scintillation probe which is special designed for the oil industry of radioactive logging. The temperature stability of LaBr3:Ce is excellent, so the probe has good temperature stability in the nuclear logging of oil field.LaBr3:Ce Scintillators coupling with the special photomultiplier tube will achieve a high detection deficiency and excellent energy resolution. Further more, it can be ensure the reliability and stability of the probe in the industrial field.

 Probe Structure

Basic Properties  

Dimension  Diameter 25-75mm
Height 10-200mm
Photon Conversion Efficiency 62000 photon/MeV
Energy Resolution 3%-3.9% @ 662keV
Nonlinear Energy ≤6% @ (30keV-1.3MeV)
Output Amplitude 0.5-1V/MeV photon
Energy Signal Output Waveform Positive pulse index. Rise time is 12ns.back porch is 2μs. Amplitude depends on the high pressure
Output Impedance 50 ohm
Temperature Coefficient of Output Signals ≤±0.1% /℃
 ( -10 to +50℃ )

Power Supply Requirement

(1) LV: ±12V DC stabilized power supply

     Current consumption: Less than 20 mA
(2 )HVDC
    ①Positive or negative polarity
    ②500-1000V
    ③Current consumption≤0.4mA
    ④Output Ripple Voltage≤2mV(peak value)