Specification
| AT6104DM | AT6104DM1 | |
| Scintillation detector | NaI(Tl) Ø63×63 mm | NaI(Tl) Ø63×160 mm |
| Energy range | 70 keV – 3 MeV | |
| Identified radionuclides
[Extended library (add 60Co, 24Na, 54Mn, etc.) available on request] |
137Cs, 134Cs, 131I, 40K, 226Ra, 232Th | |
| Measurement range of specific activity in water (4π geometry)
[Extended library (add 60Co, 54Mn, etc.) available on request] |
3 – 1·106 Bq/kg [134Cs, 137Cs, 131I]
250 – 2·104 Bq/kg [40K] |
1 – 1·106 Bq/kg [134Cs, 137Cs, 131I]
100 – 2·104 Bq/kg [40K] |
| Measurement range of specific activity in bottom sediments (2π geometry) | 50 – 1·106 Bq/kg [134Cs,137Cs]
250 – 2·104 Bq/kg [40K] |
– |
| Typical resolution at 662 keV (137Cs) | 7.5% | 8.5% |
| Measurement range of ambient dose equivalent rate | 0.03 – 130 µSv/h | 0.03 – 50 µSv/h |
| Limits of tolerable intrinsic relative error |
±20% (for specific activity and dose rate measurement) |
|
| Typical sensitivity to 137Cs gamma radiation | 2350 cps/(µSv·h-1) | 5100 cps/(µSv·h-1) |
| Protection class of the detection device |
IР68 (Withstands static hydraulic pressure up to 5 MPa for not less than 24 h) |
|
| Overall dimensions and weight of detection device | Ø130×510 mm, 4.5 kg | Ø130×633 mm, 6.5 kg |
