Specification
| AT1125, AT1125A Radiation Monitors | |
| Detectors | AT1125: Scintillation NaI(TI) Ø25×40 mm; AT1125A: Scintillation NaI(TI) Ø25×40 mm and Geiger-Mueller counter tube; BDPS-02: End-type Geiger-Mueller counter tube |
| Measurement range of ambient dose equivalent rate | 30 nSv/h – 300 µSv/h (AT1125) 30 nSv/h – 100 mSv/h (AT1125A) |
| Measurement range of ambient dose equivalent | 10 nSv – 10 mSv (AT1125) 10 nSv – 10 Sv (AT1125A) |
| Measurement range of 137Cs specific activity | 50 – 105 Bq/kg (with PrU) 100 – 105 Bq/kg (w/o PrU) |
| Measurement range of alpha particles flux density | 2.4 – 106 particle·min-1·cm-2 (BDPS-02) |
| Measurement range of beta particles flux density | 6 – 106 particle·min-1·cm-2 (BDPS-02) |
| Limits of tolerable intrinsic relative error |
±15% (dose rate) (AT1125, А) ±20% (dose rate) (BDPS-02) ±20% (specific activity) ±20% (flux density) (BDPS-02) |
| Energy range of X-ray and gamma radiation | 50 keV – 3 MeV (AT1125, А) 20 keV – 3 MeV (BDPS-02) |
| Energy dependence relative to 662 keV (137Cs) | ±15% (AT1125, А) ±30% (BDPS-02) |
| Typical sensitivity to 137Cs gamma radiation | 350 cps/(µSv·h-1) (AT1125, А) 6.6 cps/(µSv·h-1) (BDPS-02) |
| Detectable activity of 137Cs source, located at the distance of 5 cm in a time not longer than 2 s | 10 kBq |
| Protection class | IP54 (AT1125, А) IP64 (BDPS-02) |
| Overall dimensions, weight | 258x85x67 mm, 1.0 kg (AT1125,А) 138x86x60 mm, 0.3 kg (BDPS-02) Ø150×155 mm, 10.5 kg (PrU) |
| * The list of controlled radionuclides can be adjusted on request. Available variants: a) 137Cs, 134Cs + 137Cs b) 131I, 137Cs, 134Cs + 137Cs | |
| ** BDPS-02 can be substituted by the following detection units: BDPA-01, BDPA-02, BDPA-03, BDPB-01, BDPB-02 and BDPB‑03. For specification of detection units see AT1117M Radiation Monitor | |
