Scintillation Spectrometer AirSPEC Dose rate meter and gamma radionuclide identification


Scintillation gamma-ray spectrometer AirSPEC is intended for measuring scintillation spectra and also for determination of activities and specific activities of radionuclides in prepared and natural samples in 2π and 4π geometries. Spectrometer can be used for radiation monitoring and various tasks like definition of specific effective activity of naturally occurring radionuclides (NORM) in building materials (granite, crushed stone, gravel, etc.), raw materials, products, waste industrial production and rocks without sampling. In addition, AirSPEC is applicable for measurement of surface activity of the radionuclide 137Cs (and other), mass fraction of NORM in rocks and resins the conditions of their natural occurrence on a surface, in boreholes and in warehouses and transport containers. Moreover, AirSPEC can analyze surface contamination of soil, as well as prospecting and exploration of mineral deposits. The spectrometer can be used for operating in laboratory and in the field conditions.


  • online gamma spectrum acquisition and readout;
  • ambient equivalent dose rate H*(10) calculation [mkSv/h];
  • automatic radionuclide identification;
  • radionuclide concentration indication [Bq/m3];
  • operation and settings control via GammaSPEC software;
  • data transfer via RS-485 interface.


Availalble additional option by request:
  • Collimator 
  • Monitor  
  • Winch  
  • Alarm console 


AirSPEC is a monoblock unit, comprising scintillation crystal, photoelectronic multiplier, HV converter, amplifier, multichannel pulses analyzer and processor unit.

AirSPEC measurement system is autonomous, automated and provides calculation of the ambient equivalent dose rate H*(10) in real time, as well as identification of the most common natural and artificial gamma radionuclides. The results of the identification and dose rate are then transmitted to the upper-level computer via exchange protocol.

AirSPEC has automatic stabilization of the spectrometry channels by means of tracking the position of the K-40 1460.8 keV full energy peak provided by the potassium salt located in the cartridge near scintillation crystal.

AirSPEC provides an additional feature of thermostabilizing housing to provide a wider range of operating temperatures. The housing provides both high degree of thermal insulation and automatic control and active adjustment of the temperature inside the device. The IP67 degree of protection allows to use AirSpec in severe weather conditions.


Detector typeNaI(Tl) Ø51 × 51 mm
(LaBr3, CeBr3, SrI2 – optional)
Measured energies range80 – 3000 keV
Gamma dose rate measuring range from 0.01 to 100 mkSv/h
Relative energy resolution on the line 661,7 keV < 8% for NaI(Tl) < 3.5% for SrI2< 8% for NaI(Tl)
< 3.5% for SrI2
MCA channels1024
Power supply voltage4.5 – 18 V
Power consumption:
- Thermostabilizing OFF
- Thermostabilizing ON

1.5 W
25 W
Operation temperature -25 °C ÷ +60 °C
Data transfer interfaceRS-485
Shell protection level IP67
List of identified radionuclidesCe-144, Te-132, I-131, Ba-140, Cs-134, Cs-137, Zr-95,Mn-54, Co-60, La-140
DimensionsO55 × 370 mm
Weight 6.4 kg


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