AirTrack Aerosol Monitoring Station with high performance scintillation detector assembly and automatic filter changer


The Aerosol Monitoring Station is a breakthrough in autonomous radiation surveillance, utilizing silicone, high purity germanium or scintillation detectors for alpha, beta, and gamma monitoring in the air. With unparalleled precision, this cutting-edge system ensures swift and accurate detection of radioactive aerosols. Operating autonomously, it offers real-time data, making it ideal for industrial, research, or emergency scenarios. The advantages of high purity germanium and scintillation detectors make this station a reliable guardian, providing continuous and precise radiation monitoring to safeguard diverse environments.


  • acquiring alpha-beta and gamma spectra in real-time;
  • calculating activity of radionuclides on the filter [Bq] and concentration of radionuclides in the air [Bq/m3];
  • indication of the concentration of Radon in the ambient air and automatic compensation its progenies;
  • two programmable thresholds (notification and alarm) for radiological events in each measurement chain (alpha, beta and gamma emitters);
  • automatic filter replacement depending on its contamination degree, integrity damage, or after measurement time;
  • automatic control of filter condition, including measurement of differences in the air pressure Δp at the inlet and outlet of the filter;
  • measurement of the flow rate of the incoming air;
  • data transfer via LAN, USB and 4G interfaces in the ANSI 42.42/EURDEP format to the end-user;
  • control of all AirTrack operations from a remote computer.
  • touch screen user interface, easy to learn and intuitive operation;
  • update period of the radionuclides concentration information is 1 minute;
  • gamma spectrometric chain made of scintillation detector SrI2(Eu) high resolution and digital 4K MCA;
  • automatic stabilization of the energy scale of gamma radiation spectrometric channel is implemented using a K-40 built-in source;
  • calibration of alpha/beta/gamma radiation energy scale using reference sources in filter geometry;
  • full load of filter cartridge provides up to three months of autonomous operation;
  • automatic control of the operations, emergency messages about equipment faults in case of operation failure and built-in testing procedures.


AirTrack Aerosol Monitoring Station and its two modifications AirTrack-Sr and AirTrack-Ge.


AirTrack-Sr is the state-of-the-art among aerosol monitors in terms of advanced design solutions for automatic alpha/beta and gamma spectrometric measurements.

The innovative unique use of a SrI2(Eu) scintillation crystal with high energy resolution and low intrinsic background ensures maximum reliability in the identification of gamma-emitting radionuclides and reduces the detection limit of radioactive aerosol concentration.

It is a budget friendly alternative to its higher performance version AirTrack-Ge equipped with electrically cooled HPGe detector and both detectors are interchangeable without any design modifications.

A special version of the Silicon Ion Implanted Detector with area 600 mm2 is used for alpha and beta spectrometry. The metalized coating of entrance window with thickness of less than 2 mm provides mechanical and chemical protection of the detector. Measurements can be carried out in high background conditions – compensation of radon, thoron and their progenies is performed algorithmically by spectrometric measurements, and passive lead shielding protects against gamma background radiation.


Alpha and Beta Radiation
Detector typeSIID 600 mm2
Registration efficiency:
– 241Am
– 90Sr/90Y

not less than 0.15
not less than 0.2
Alpha energy rangefrom 2 MeV to 10 MeV
Beta energy rangefrom 80 keV to 3 MeV
Measurement range of alpha-radiation volumetric activityfrom 10^-2 to 105 Bq/m3
Measurement range of beta radiation volumetric activity from 10^-1 to 105 Bq/m3
Gamma Radiation
Detector typeSrI2(Eu)
(LaBr3(Ce), CeBr3 or NaI(Tl) optionally)
Gamma energy rangefrom 30 keV to 3 MeV
Energy resolution at the 662 keV line3.2% (for SrI2(Eu) 38.1×38.1 mm)
Measurement range of gamma radiation volumetric activity from 10^-1 to 105 Bq/m3
Detector typeHPGe with electrical cooling
Gamma energy rangefrom 3 keV to 3 MeV
Energy resolution
for energy 122 keV
for energy 1.33 MeV

< 1000 eV
< 2000 eV
Relative efficiency *30 %
Nominal flow rateadjustable, from 3 to 10 m3/h
Flow regulation accuracy2% max.
Noise level (ISO 2151)not more than 62 dB(A)
Performance characteristics
Power supply230 V / 50 Hz
Operating temperature range+5°C … +40°C
* Note – for 1.33 MeV energy with respect to the 3×3 NaI(Tl) detector, when measured with a 60Co source at a distance of 25 cm from the detector


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