Automatic monitoring station for continuous measurement of alpha, beta and gamma radionuclides in airborne aerosols, with automatic filter changer.
AirTrack is designed for autonomous operation and delivers real-time data for industrial, research and emergency applications. Gamma detectors are fully interchangeable without design modifications, and all operations can be controlled from a remote computer. The gamma channel is automatically stabilised using the K-40 peak.
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| Detector type | Alpha/beta: 900 mm² silicon ion-implanted detector. Gamma: SrI₂(Eu), optionally LaBr₃(Ce), CeBr₃, NaI(Tl) or HPGe with electrical cooling |
|---|---|
| Energy measurement range | Alpha 2 MeV to 10 MeV; beta 0.05 MeV to 2 MeV; gamma 0.05 MeV to 3 MeV (SrI₂) or 3 keV to 3 MeV (HPGe) |
| Concentration measurement range | Alpha 10⁻² to 10⁵ Bq/m³; beta 10⁻¹ to 10⁵ Bq/m³; gamma 10⁻² to 10⁶ Bq/m³ |
| Energy resolution | AirTrack-Sr: < 3.2 % at 661.7 keV (SrI₂(Eu) Ø 38.1 × 38.1 mm); AirTrack-Ge: < 1 keV at 122 keV, < 2 keV at 1.33 MeV |
| MCA | 1024 channels (alpha), 4096 channels (gamma) |
| Filters | Any Ø 47 mm disk filter; automatic replacement when activity or differential pressure thresholds are exceeded |
| Update period | 1 minute |
| Power supply | 230 V, 50 Hz |
| Operation temperature | +5 °C to +40 °C |
Source: Baltic Scientific Instruments, AirTrack brochure (bsi.lv, retrieved November 2026). Full specifications are available in the documents.
