Deep-Water gamma-spectrometer is applicable to the registration of gamma-radiation from radionuclides in monitoring of the sea bed for objects from marine accidents, submarine storage of radioactive wastes, search of lost nuclear charges, inspection of radionuclide migration, etc.
| Parameter | Value |
|---|---|
| Energy range, keV | 60 - 3000 |
| HPGe detector efficiency, % | 30 * |
| Energy resolution for 30% efficiency detector, keV at energy 122 keV 1.33 MeV | 0.9 1.9 |
| Detection limit for specific activity of radio nuclides at measurement time1 hour, Bq/l Cs137 Co60 Mn54 U235 Am141 | 0.259 0.222 0.222 0.333 7.4x10-3 |
| Number of spectra recorded during self-contained operation | 25 |
| Maximum diving depth, m | 3000 |
| Cryoaccumulator cooling time, h | 8 |
| Continuous operation time after cryoaccumulator cooling, h | 50 |
| Weight of spectrometer without protective housing, kg | 30 |
| Weight of equipment for cryoaccumulator cooling by liquid nitrogen, kg | 56 |
| * 10% - 160% efficient HPGe detectors are available by separate order. |
