Productspecificaties
Detector | Scintillation plastic, Ø30×15 mm |
Measurement range of ambient radiation dose rate equivalent | |
Continuous radiation AT1121, AT1123 |
50 nSv/h…10 Sv/h |
Short-term radiation AT1121, AT1123 |
5 µSv/h…10 Sv/h |
Impulse radiation AT1123 |
0.1 µSv/h…10 Sv/h |
Measurement range of ambient radiation dose equivalent | 10 nSv…10 Sv |
Energy range | 15 keV – 10 MeV |
Energy dependence of sensitivity relating to 137Cs | |
in the following range: | |
15 keV…60 keV | ±35% |
60 keV…3 MeV | ±25% |
3 MeV…10 MeV | ±50% |
Minimum duration of impulse radiation for impulse | 10 ns |
dose rate 1.3 Sv/sec (AT1123) | |
Minimum duration of short-term radiation | 30 ms |
Limit of intrinsic relative measurement error | |
For continuous and short-term radiation | ±15% |
For impulse radiation | ±30% |
Sensitivity for 137Cs | 70 cps/µSv·h-1 |
Time of 137Cs gamma radiation dose rate measurement with | |
statistical error ±15% (P=0.95) for the following dose rate: | |
50 nSv/h | ≤60 s |
0.3 µSv/h | ≤10 s |
≥2 µSv/h (10 Sv/h max.) | ≤2 s |
Sensitivity to associated beta radiation of 90Sr + 90Y | 3·10-7 µSv/h-1·Bq-1 |
with a “0.06 – 10 MeV” cap at 5 cm distance | |
Operation mode setup time | 1 min |
Power supply and continuous run time | |
Alternate or direct current mains | At least 24 h |
Internal battery | |
AT1121 | ≥ 24 h |
AT1123 | ≥ 12 h |
Working temperature range | -30°C…+50°C |
Relative humidity with air temperature ≤35°C without condensation | ≤95% |
Protection class | IP54 |
Overall dimensions, weight | 233x85x67 mm, 0.9 kg |
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